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Evergreen azalea play
Evergreen azalea
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Evergreen azalea
Evergreen azalea
Evergreen azalea
Evergreen azalea
Evergreen azalea
Rhododendron indicum
Also known as : Tsutsusi azalea
Water
Water
Every 1-2 weeks
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Sunlight
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Partial sun
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care guide

Care Guide for Evergreen azalea

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Watering Care
Watering Care
Details on Watering Care Watering Care
Fertilizing Care
Fertilizing Care
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Pruning
Pruning
Trim the diseased, withered leaves once a month.
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Soil Care
Soil Care
Sand, Loam, Acidic, Neutral
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Repotting
Repotting
Should be repotted once every 2-3 years.
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Evergreen azalea
Water
Water
Every 1-2 weeks
Sunlight
Sunlight
Partial sun
Hardiness Zones
Hardiness Zones
4 to 10
Planting Time
Planting Time
Spring, Early summer, Fall, Early winter
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Questions About Evergreen azalea

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What is the best way to water my Evergreen azalea?
Your Evergreen azalea will not be too picky about how you choose to water it. As such, you can use just about any common watering tool to moisten this plant’s soil. Watering cans, hoses, and even cups will work just fine when it is time to water your Evergreen azalea. Regardless of which watering tool you use, you should typically apply the water directly to the soil. In doing so, you should ensure that you moisten all soil areas equally to give all parts of the root system the water it needs. It can help to use filtered water, as tap water can contain particles that are harmful to plants. It is also beneficial to use water that is at or slightly above room temperature, as colder or hotter water can be somewhat shocking to the Evergreen azalea. However, the Evergreen azalea usually responds well to any kind of water you give it.
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What should I do if I water my Evergreen azalea too much or too little?
For outdoor plants, especially newly planted plants or plant seedlings, they can be prone to lack of watering. Remember that you need to keep watering enough for a few months when the tree is small or just planted. This is because once the roots are established, Evergreen azalea can rely on rain most of the time. When your Evergreen azalea is planted in pots, overwatering is often more likely to.When you accidentally overwater your Evergreen azalea, you should be prepared to remedy the situation immediately. First, you should stop watering your plant right away to minimize the effect of your overwatering. After, you should consider removing your Evergreen azalea from its pot to inspect its roots. If you find that none of the roots have developed root rot, it may be permissible to return your plant to its container. If you do discover signs of root rot, then you should trim away any roots that have been affected. You may also want to apply a fungicide to prevent further damage. Lastly, you should repot your Evergreen azalea in soil that is well-draining. In the case of an underwatered Evergreen azalea, simply water this plant more frequently. Underwatering is often an easy fix. If you underwater, the plant's leaves will tend to droop and dry out and fall off, and the leaves will quickly return to fullness after sufficient watering. Please correct your watering frequency as soon as underwatering occurs.
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How often should I water my Evergreen azalea?
Most plants that grow naturally outdoors can be allowed to grow normally with rainfall. If your area lacks rainfall, consider giving your plants adequate watering every 2 weeks during the spring and fall. More frequent watering is needed in summer. In winter, when growth becomes slower and plants need less water, water more sparingly. Throughout the winter, you may not give it additional watering at all. If your Evergreen azalea is young or newly planted, then you should water more frequently to help it establish, and mature and grow up to have more adaptable and drought tolerant plants. For potted plants, there are two main ways that you can determine how often to water your Evergreen azalea. The first way is to set a predetermined watering schedule. If you choose this route, you should plan to water this plant about once every week or once every other week. However, this approach may not always work as it does not consider the unique conditions of the growing environment for your Evergreen azalea . Your watering frequency can also change depending on the season. For instance, a predetermined watering schedule will likely not suffice during summer when this plant's water needs are highest. An alternative route is to set your watering frequency based on soil moisture. Typically, it is best to wait until the first two to four inches of soil, usually ⅓ to ½ depth of the pots, have dried out entirely before you give more water.
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How much water does my Evergreen azalea need?
When it comes time to water your Evergreen azalea, you may be surprised to find that this plant does not always need a high volume of water. Instead, if only a few inches of soil have dried since your last watering, you can support healthy growth in the Evergreen azalea by giving it about five to ten ounces of water every time you water. You can also decide your water volume based on soil moisture. As mentioned above, you should note how many inches of soil have dried out between waterings. A surefire way to make sure your Evergreen azalea gets the moisture it needs is to supply enough water to moisten all the soil layers that became dry since the last time you watered. If more than half of the soil has become dry, you should consider giving more water than usual. In those cases, continue adding water until you see excess water draining from your pot’s drainage holes. If your Evergreen azalea is planted in an area that gets plenty of rain outdoors, it may not need additional watering. When the Evergreen azalea is young or just getting established, make sure it gets 1-2 inches of rain per week. As it continues to grow and establish, it can survive entirely on rainwater and only when the weather is hot and there is no rainfall at all for 2-3 weeks, then consider giving your Evergreen azalea a full watering to prevent them from suffering stress.
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How can I tell if i'm watering my Evergreen azalea enough?
Overwatering is a far more common problem for the Evergreen azalea, and there are several signs you should look for when this occurs. Generally, an overwatered Evergreen azalea will have yellowing leaves and may even drop some leaves. Also, overwatering can cause the overall structure of your plant to shrivel and may also promote root rot. On the other hand, an underwatered Evergreen azalea will also begin to wilt. It may also display leaves that are brown or brittle to the touch. Whether you see signs of overwatering or underwatering, you should be prepared to intervene and restore the health of your Evergreen azalea.
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How can I water my Evergreen azalea at different growth stages?
When the Evergreen azalea is very young, such as when it is in a seedling stage, you will need to give it more water than you would if it were at a mature age. During the early stages of this plant’s life, it is important to keep the soil consistently moist to encourage root development. The same is true for any Evergreen azalea that you have transplanted to a new growing location. Also, the Evergreen azalea can develop showy flowers and fruits when you give them the correct care. If your Evergreen azalea is in a flowering or fruiting phase, you will likely need to give a bit more water than you usually would to support these plant structures.
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How can I water my Evergreen azalea through the seasons?
The seasonal changes will affect how often you water your Evergreen azalea. Mainly, during the hottest summer months, you will likely need to increase how much you water this plant, especially if it grows in an area that receives ample sunlight. Strong summer sunlight can cause soil to dry out much faster than usual, meaning that you’ll need to water more frequently. By contrast, your Evergreen azalea will need much less water during the winter, as it will not be in an active growing phase. During winter, you can get by with watering once every 2 to 3 weeks or sometimes not at all. For those growing this plant indoors, you should be somewhat wary of appliances such as air conditioners, which can cause your plant to dry out more quickly, which also calls for more frequent watering.
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What's the difference between watering my Evergreen azalea indoors vs outdoors?
In some cases, your Evergreen azalea may not need any supplemental watering when it grows outside and will survive on rainwater alone. However, if you live in an area of little to no rain, you should water this plant about every two weeks. If you belong to the group of people who live out of this plant's natural hardiness zone, you should grow it indoors. In an indoor setting, you should monitor your plant's soil as it can dry out more quickly when it is in a container or when it is exposed to HVAC units such as air conditioners. Those drying factors will lead you to water this plant a bit more often than if you grew it outdoors.
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Key Facts About Evergreen azalea

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Attributes of Evergreen azalea

Lifespan
Perennial
Plant Type
Shrub
Planting Time
Spring, Early summer, Fall, Early winter
Bloom Time
Mid spring, Late spring, Early summer
Plant Height
1 m to 2 m
Spread
60 cm to 90 cm
Leaf Color
Green
Flower Size
3.5 cm to 6 cm
Flower Color
Pink
Red
Purple
Stem Color
Red
Brown
Dormancy
Winter dormancy
Leaf type
Evergreen
Ideal Temperature
5 - 35 ℃
Growth Season
Spring
Growth Rate
Slow

Name story

Evergreen azalea
Satsuki azalea

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Scientific Classification of Evergreen azalea

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Common Pests & Diseases About Evergreen azalea

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Common issues for Evergreen azalea based on 10 million real cases
Leaf rot
Leaf rot Leaf rot
Leaf rot
Leaf rot is a destructive disease primarily caused by fungus, affecting Rhododendron indicum. It greatly impacts the plant's health by decaying its leaves and limiting its ability to absorb nutrients, eventually reducing its growth and causing death if left untreated.
Brown spot
Brown spot Brown spot
Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Flower withering
Flower withering Flower withering
Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Wilting after blooming
Wilting after blooming Wilting after blooming
Wilting after blooming
Flowers may wither for a variety of reasons.
Solutions: Check the soil or potting medium. Coarse textures can allow water to drain too rapidly, preventing the plant from taking up enough. If the soil and roots seem very dry, add sphagnum moss or other mediums that hold water. Water according to recommendations for each plant's species. Low humidity can be corrected by misting the plant regularly or placing it near a humidifier. Keeping it near other plants helps, too. Keep the environment consistent in terms of temperature, humidity, and lighting. Keep it away from vents, heaters, and air conditioners, and avoid moving it to locations where it will experience a temperature shock. Hot, dry heat, and cold drafts are problematic for many plants. Especially if the plant is outside, it could be experiencing heat or light stress. Try moving it to a shadier location.
Lace bugs
Lace bugs Lace bugs
Lace bugs
Lace bugs are 3 to 5 mm translucent flying insects that suck sap from the plant.
Solutions: Lace bugs can be controlled in various ways. For severe cases: Introduce beneficial insects that eat lace bugs, such as parasitoid wasps, assassin bugs, and lady beetles. Avoid spraying unnecessary pesticides so as not to reduce the populations of these helpful predators. Spray plants with insecticidal soap or neem oil under all leaves of the affected and surrounding plants. Make sure the soap hits the insects. Spray in the morning, evening, or on a cloudy day to avoid damaging plant tissue. Trim and burn heavily infected plant limbs. As a last resort use an insecticide containing pyrethroids to kill the lace bugs. Remember that these products will also likely kill beneficial insects such as bees. For less severe cases: Rub off lace bugs from under the leaves using a damp cloth. Use the strong stream of a hose to spray these pests off plants. This washes the nymphs off and onto the ground where they cannot return to the leaves of the plant. Large trees generally do not need to be treated for lace bugs, since they don't damage their overall health.
Petal blight
Petal blight Petal blight
Petal blight
Bacterial infections can cause flowers to become soft and rotten.
Solutions: Like other fungal diseases, the progression of petal blight is extremely difficult to stop and impossible to reverse once it infects a plant. The best course of action is to remove all damaged flowers immediately and dispose of them entirely. Do not put them in the compost pile, where spores could grow and spread.
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Leaf rot
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf rot Disease on Evergreen azalea?
What is Leaf rot Disease on Evergreen azalea?
Leaf rot is a destructive disease primarily caused by fungus, affecting Rhododendron indicum. It greatly impacts the plant's health by decaying its leaves and limiting its ability to absorb nutrients, eventually reducing its growth and causing death if left untreated.
Symptom Analysis
Symptom Analysis
Evergreen azalea's noticeable symptoms are yellowing of its green foliage, leaving irregular brownish-black spots, followed by wilting and eventual leaf drop as the rot progresses. Young plants display stunted growth.
What Causes Leaf rot Disease on Evergreen azalea?
What Causes Leaf rot Disease on Evergreen azalea?
1
Fungal infection
Phytophthora spp., the most common fungal species, causes leaf rot, infesting the plant under warm, wet conditions.
2
Environmental factors
Poor drainage, over-irrigation and compacted, poorly aerated soil can exacerbate leaf rot incidence.
How to Treat Leaf rot Disease on Evergreen azalea?
How to Treat Leaf rot Disease on Evergreen azalea?
1
Non pesticide
Improve drainage: Implement adequate soil drainage to avoid waterlogging conditions, which promote fungal growth.

Pruning: Remove infected leaves to prevent the spread of the disease to healthy parts.
2
Pesticide
Fungicide application: Apply a suitable fungicide, such as those containing mefenoxam or fosetyl-aluminium, following label instructions for effective treatment.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
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Flower withering
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Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Overview
Overview
Flower withering occurs when flowers become weak, droopy, wilted, or faded until they can’t be revived. During withering, they begin to wrinkle and shrink until the flower becomes completely dry or dead.
Any flowers, regardless of the plant type or the climate they are grown in, are susceptible to withering. It is a worldwide problem across houseplants, herbs, flowering ornamentals, trees, shrubs, garden vegetables, and food crops.
Unlike wilting—which withering is often confused with—withering can be caused by different things and is often due to more than a lack of water. Withering can be fatal in severe cases.
Symptom Analysis
Symptom Analysis
Flower withering progresses from very mild cases to severe occurrences that kill the flower. The severity of the symptoms is related to the cause and how long the condition is allowed to progress before action is taken.
  • Wilted, droopy flowers
  • Petals and leaves begin to wrinkle
  • Brown papery streaks or spots appear on the petals and leaf tips
  • Flowerhead shrink in size
  • Petal color fades
  • Yellowing leaves
  • Complete death of the flower
Disease Cause
Disease Cause
The main causes of flower withering include natural age progress, lack of water, nutritional deficiencies, and bacterial or fungal diseases. It’s critical to determine the underlying cause when flower withering is noticed. This will guide the best course of action, if treatment is possible.
Check the soil for moisture and then closely examine the entire plant for signs of nutrient deficiencies. If neither of those appears to be the cause then cut open the stem below a flower. If a cross-section reveals brown or rust-colored stains it is safe to assume that this is a bacterial or fungal infection.
If the flower is nearing the end of its normal lifespan, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence, or cell aging and death. Cell division stops and the plant begins breaking down resources within the flower to use in other parts of the plant.
In all other cases, flower withering happens when the plant seals off the stem as a defense mechanism, stopping transport within the vascular system. This prevents further water loss through the flowers but also stops bacteria and fungi from moving to healthy parts of the plant. Once water and nutrient transport stops, the flower begins to wither and ultimately die.
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Wilting after blooming
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Wilting after blooming
Flowers may wither for a variety of reasons.
Overview
Overview
Wilting after blooming is sometimes a natural aging process of the flower, while other times it may indicate a problem. Orchids, for example, can bloom for anywhere from two weeks to three months, so wilting after a few days signals a problem for most varieties. This can happen to virtually any ornamental flowering plant, but those with shallow roots and limited tolerance for drought, full sun, and low humidity are more susceptible.
This is a common problem, and often has an easy fix. Sometimes, however, it is the result of more serious causes such as pests or disease of the root system.
Symptom Analysis
Symptom Analysis
  • At first, flowers may look a little limp.
  • Petals may start to appear dried out and turn brown.
  • Eventually they may drop off the plant all together.
Disease Cause
Disease Cause
Wilting blooms can be a sign of an unhealthy root system. Any condition that prevents the plant from absorbing enough water and nutrition can result in wilting blooms and sometimes other symptoms. If the plant doesn’t have enough water, it cannot maintain appropriate pressure within stems, leaves, and blooms, causing them to wilt.
This can result from physical damage – for example from root breakage during re-potting or attack by insects like cutworms. If you recently re-potted your plant, physical damage to the roots is a likely cause. If you see insects, they may be eating leaves, roots, or flowers. Fungal infections can also cause root rot and damage, preventing water and nutrient uptake.
Finally, wilting blooms can result simply from age. If no other symptoms are visible, it may simply signal the natural end of the flower’s lifespan. If it seems premature, this may be caused by environmental factors: water, humidity, light, or stress. Under-watering is a common cause. Similarly, plants adapted to high humidity dry out easily when humidity is low, like during winter or in dry climates. Too much light can also stress plants that need shade, causing blooms to wilt.
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Lace bugs
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Lace bugs
Lace bugs are 3 to 5 mm translucent flying insects that suck sap from the plant.
Overview
Overview
Lace bugs are tiny winged insect pests that feed on the sap of the plant that they infest. There are a number of different types, which each attack certain species of plants. A severe infestation can cause leaf drop, and a reduction of fruit yield also occurs on infested fruit trees. They are most active in late summer and fall.
Lace bugs can be difficult to detect, so damage may be seen before the insect pests are detected. While adult lace bugs are brown to black with lacy wings that lay flat against their body, the nymphs are clear when they first hatch and then gradually turn black. They have small spines around their bodies. These nymphs will mature into adults within 3 or 4 weeks.
Although the damage caused by lace bugs is somewhat unsightly, it does not seriously harm the plant. The most susceptible species of plants include azaleas, rhododendrons, olive and macadamia trees, and plane trees.
Symptom Analysis
Symptom Analysis
When lace bugs infest a plant's leaves, yellow spots can be seen on the upper surface. The underside of the leaves is usually fouled with black bug droppings that are tar-like.
Lace bugs spend their entire lifecycle on the leaves of the plant they have infested, from egg to adult. They are tiny sap-sucking insects that are around 3 mm long. The adults lay their eggs on the undersides of the leaves. When the eggs hatch, the nymphs start to feed on the sap of the leaves.
When an entire leaf is infested, it takes on a bronze appearance. Eventually, severely affected leaves will drop off the plant.
Some lace bugs also feed on flower buds. This causes the tips of the flowers to blacken. Eventually, the entire flower will turn black and drop off.
Solutions
Solutions
Lace bugs can be controlled in various ways.
For severe cases:
  1. Introduce beneficial insects that eat lace bugs, such as parasitoid wasps, assassin bugs, and lady beetles. Avoid spraying unnecessary pesticides so as not to reduce the populations of these helpful predators.
  2. Spray plants with insecticidal soap or neem oil under all leaves of the affected and surrounding plants. Make sure the soap hits the insects. Spray in the morning, evening, or on a cloudy day to avoid damaging plant tissue.
  3. Trim and burn heavily infected plant limbs.
  4. As a last resort use an insecticide containing pyrethroids to kill the lace bugs. Remember that these products will also likely kill beneficial insects such as bees.
For less severe cases:
  1. Rub off lace bugs from under the leaves using a damp cloth.
  2. Use the strong stream of a hose to spray these pests off plants. This washes the nymphs off and onto the ground where they cannot return to the leaves of the plant.
  3. Large trees generally do not need to be treated for lace bugs, since they don't damage their overall health.
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Petal blight
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Petal blight
Bacterial infections can cause flowers to become soft and rotten.
Overview
Overview
Petal blight, sometimes called flower blight, is a fungal disease that only affects the blooms of some ornamental flowering plants. As the infection progresses, it destroys the flower, yet it never damages the vegetative or green parts of the plant.
When flowers are infected, the symptoms look similar to Botrytis blight, but Botrytis also infects dead or dormant vegetative tissue.
The disease was first discovered in Japanese plants in 1919 and in the US in the late 1930s. Presently it is also found in New Zealand, Australia, and parts of Europe. Unfortunately, no plants have high resistance to petal blight, but specific cultivars are more susceptible than others, particularly species with double blooms.
Petal blight infection rates are high when temperatures are mild to warm (optimum temperatures are 15 to 21 ℃) and the weather is misty or rainy.
Overall, petal blight is an aesthetic problem that ruins blossoms. The disease is not harmful to the long-term health of the plant.
Symptom Analysis
Symptom Analysis
The severity of the symptoms varies, depending upon the species of plant infected. Signs of petal blight are commonly seen on the blooms just after they open.
  • Pallid spots on colored petals.
  • Brown spots on white petals.
  • Browning around the petal edges.
  • Small spots look water-soaked.
  • Spots rapidly enlarge and merge.
  • Flowers become limp.
  • The entire flower turns light brown, but does not crumble.
  • Flowers become slimy at first and then take on a leathery texture.
  • A ring of white or gray mycelium can be seen at the base of the petals.
Disease Cause
Disease Cause
Petal blight is caused by several different fungi, with each type infecting specific plants. Ovulinia azalea infects azaleas species and cultivars, and rhododendrons. Ciborinia camelliae infects camellia cultivars.
Shortly after blooming, the fungus infects the base of the flowers by the calyx. The fungus produces cell wall-degrading enzymes that destroy flowers within a couple of days. When the flowers fall to the ground, the fungus' hard fruiting bodies fall to the soil as well, overwintering until the following spring.
When temperatures hit the optimum range the following season, spores are transmitted by insects or can spread on wind currents up to about 12 miles. Once in the soil, the pathogen can be active for three to five years.
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Evergreen azalea and Their Toxicity

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* The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.
Moderate Toxic to Humans
Moderate Toxic to Humans
Toxic to Dogs
Toxic to Dogs
Toxic to Cats
Toxic to Cats
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Your pets like cats and dogs can be poisoned by them as well!
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Do not let your lovely pets eat any parts, nor contact with the sap of toxic or unknown plants;
2
It’s better to kill those growing around your house. Wear long-sleeved shirts, pants and gloves with sharp tools to dig it out completely;
3
Clean the tools with rubbing alcohol or soap and water but do not do that with bare hands;
4
Clean your hands and skin once exposed to plants with soap and water;
5
Consider using barrier creams that contain bentoquatam to prevent poison oak, ivy and sumac rashes;
6
Dump it in special trash cans in sealed garbage packages, and do not let your pets reach it;Do not let your lovely pets eat any parts, nor contact with the sap of toxic or unknown plants;
7
If you take your pets to hike with you in the wild, please don’t let them eat any plants that you don’t know;
8
Once your pets eat, touch or inhale anything from toxic plants and act abnormally, please call the doctors for help ASAP!
pets
Pets
Some pets are less likely than children to eat and touch just about everything. This is good, as a pet owner. However, you know your pet best, and it is up to you to keep them safe. There are plenty of poisonous weeds that can grow within the confines of your lawn, which might make your dogs or cats ill or worse if they eat them. Try to have an idea of what toxic plants grow in your area and keep them under control and your pets away from them.
pets
Common Toxic Houseplants
Common Toxic Houseplants
When it comes to decorating a house, there is nothing more refreshing than adding some beautiful houseplants. Some common house plants can also be toxic.

Aloe

aloe
Aloe is famous for its sunburn-soothing properties and its gorgeous desert design. However, many people do not realize that the latex the aloe vera plant produces can be mildly toxic to pets and children.

The latex contains a chemical compound known as saponin. Which when ingested, can cause vomiting, diarrhea, and low blood sugar. This, if left unchecked, can lead to dehydration and electrolyte imbalance. The proper response is to contact poison control or a veterinarian to know what to do in your particular circumstance if either your child or pet consumes aloe.

The latex of the plant is similar to the sap of the tree. It is inside the leaf, but sticks mainly toward the edges. If aloe gel is prepared properly it should be safe for use, but be sure to apply it only topically when treating burns.

Philodendron

Philodendron
Philodendron, also known as sweetheart vine, has become a resident at many houses and even businesses. They are glossy green and the leaves elegantly split, displaying interesting designs. Behind this beauty there is a needle-like toxin called calcium oxalate crystals.

These crystals are held within the plant and only affect you, your pets, or your loved ones if the plant tissue is broken. If ingested, the crystals can cause severe swelling, difficulty breathing, stomach pain, burning and pain. If they are accidentally caught on the skin, they can cause skin irritation.

If anyone accidentally ingests philodendron and they find it difficult to breathe or their tongue starts to swell up, it is important to seek medical attention immediately to avoid suffocation. If you have very young children or pets who have a tendency to tear at plants, keep them away from any philodendrons.

Peace Lily

Peace Lily
Peace lilies produce stunningly white flowers that bring to mind peace and serenity. This is one reason they are invited into our homes and given a place to stay. However, similar to philodendrons, the peace lily contains oxalate crystals known as raphides.

The raphides, once ingested, will cause swelling and burning sensations and can also cause skin irritation. Both pets and humans can get these symptoms so it is important to keep these plants from anyone who is likely to tear or chew it. Symptoms can become dire if the raphides cause the tongue and throat to swell to a point where the person or pet is having difficulty breathing. Seek proper medical attention if this is the case.

Snake Plant

Snake Plant
The snake plant is an interesting and popular house plant. Its stark architecture and wavy coloring has made it a fan favorite. This plant too, however, is toxic when ingested or if the sap touches your skin.

Snake plant sap will cause rashes if it comes into contact with your skin. In addition, it will cause diarrhea and vomiting when ingested. Again these symptoms are very serious and would be best avoided by keeping snake plants out of reach or by choosing a different houseplant.
Common Toxic Garden Plants
Common Toxic Garden Plants

Daffodil

Daffodil
Daffodils are a strikingly colorful flower. This can sometimes bring them much attention not from just onlooking adults but children as well. Since kids are more drawn to colorful objects, they may have a higher chance of just grabbing the flower and eating it. Adults have also been known to accidentally grab daffodil bulbs instead of onions.

Why are these mistakes so dangerous? Daffodils contain lycorine, which can induce nausea, vomiting, and diarrhea. It also contains oxalates which can cause swelling and pain. The symptoms can be worse in animals, because if your pets eat daffodils they may experience drowsiness, low blood pressure or even liver damage.

Make sure to call poison control when these symptoms set in. The vomiting and diarrhea have been known to go away after 3 hours, but it is better to be safe than sorry. Ingesting liquids to keep hydration up can be important. If the patient is having difficulty breathing, seek medical attention immediately.

Hydrangea

Hydrangea
Hydrangeas are unique, with their soft blue and pink flowers. They are a great addition to any garden, but should not be snacked on—not that you would want to. Hydrangeas can be especially nasty because they contain compounds known as glycosides. These will release hydrogen cyanide into the bloodstream when consumed. This will block your body’s ability to uptake oxygen to the cells in your body.

The way to combat this kind of poisoning is through getting IVs from the vet or doctor. It is important to contact your medical professional immediately since the symptoms can be fatal within minutes or hours.

Rhododendrons

Rhododendrons
Rhododendron, the state flower of Washington, is also toxic. The multitudinous, pink flowers can be quite dangerous. All parts of this plant are toxic, the leaves and seeds more so than the flowers. However, even the nectar of the flower is toxic and in the Mediterranean, where rhododendrons grow in more dense quantities, the honey from bees who gather rhododendron nectar can be poisonous.

Normally kids and pets do not eat enough to experience the full poisoning effect. However, just eating two leaves is enough to be considered dangerous. The grayanotoxin glycosides within the rhododendron can cause vomiting, diarrhea and irregular heartbeats. Things can get very serious when too much rhododendron is consumed and can lead to necessary medical intervention.

Start by calling poison control first if you suspect anyone has been munching on rhododendrons. The experts there will be able to help guide you through the necessary processes to cure your loved one.

Rhubarb

Rhubarb
Yummy rhubarb has a nasty side to it. While the stems are used in many recipes, including for rhubarb strawberry pie, the leaves are toxic. They contain oxalic acid which is known to blister the mouth, cause nausea, vomiting, diarrhea and kidney stones. The leaves are known to be more toxic to pets than humans, but in either case, it is important to contact poison control immediately to figure out necessary steps to cure the patient.
Common Toxic Weeds in the Yard
Common Toxic Weeds in the Yard

Bittersweet Nightshade

Bittersweet Nightshade
Nightshade is an invasive, noxious weed that is extremely poisonous. It has been found along the East and West Coast of the U.S. It makes its home in areas with disturbed soil. This could be near your garden or areas that have recently had bushes/trees put in.

These plants are dark green with purple flowers that develop into bright red berries. The whole plant is toxic and should be avoided by pets and children alike. If ingested it can cause nausea, vomiting, and diarrhea. The colorful berries are especially enticing to young children. If you see any plants that look similar to tomato or pepper plants that you did not plant in your yard, it is best to just pull them immediately.

Call poison control immediately if you think someone has fallen victim to nightshade.

Buttercups

Buttercups
Buttercups are found throughout the United States, especially in wet areas. The shiny, yellow flowers will pop up in the springtime, accompanying their dandelion friends. However, unlike dandelions, buttercups are not edible.

Buttercups will release a compound called protoanemonin. This toxin is known to cause vomiting, diarrhea, bloody stool, hypersalivation, depression, blisters, and more. These symptoms will affect both humans and animals. The sap may also cause irritation when it comes into contact with skin. These yellow flowers are dangerous and children should be observed cautiously when around them.

Foxgloves

Foxgloves
Foxgloves are beautiful plants that build towers out of vivid purple bell-shaped blossoms. They are very pretty to look at, but they contain a compound known as digoxin. This chemical is used in certain medicines to help people with certain heart conditions. However, the medicine is made by specialists, whereas someone eating foxgloves will receive unregulated amounts of the chemical.

This toxin can make you vomit and lower your heartbeat. This often causes dizziness and faintness. It is extremely important to call poison control immediately to know what to do in the case of foxglove poisoning. Some people have confused the young leaves of foxglove with borage, making adult foragers at risk as well as kids and pets.
How to Tend to or Get Rid of Toxic Plants
How to Tend to or Get Rid of Toxic Plants
Now that you know where to start with toxic plant identification, let us discuss how to either tend to the poisonous plants you decide to keep or get rid of them that plague your yard.

How to Tend to Poisonous Plants

Many plants that are toxic when ingested are also skin irritants. The philodendron is a good example of this. When the sap comes into contact with skin, it can cause a rash to form. To help protect yourself when tending to toxic plants, it is important to wear some sort of gloves.
Tend
Latex gloves may be the best solution due to their disposability. Regular gloves could potentially keep the poisonous sap on their surface. If the gloves aren’t cleaned then you could accidentally touch the irritant or pass it to someone else.

In addition you will want to plan where to keep your deadly beauties. If you have a toxic indoor plant try to keep it up high or out of reach of children and pets. This will keep accidents few and far between. Another idea is keeping your plants in areas that are usually inaccessible to children or pets. Areas such as an office, study room, or guest bedroom could be good locations. If applicable, you could also set up a terrarium for your little plant baby, making it more difficult for curious hands or paws to access.
tend2
If you plan to have outdoor plants, location will be key. You will want to put plants in an area that will be inaccessible to children, pets and even wild animals. You will probably want to avoid planting the plants in the front of your house if kids walk by on a regular basis, just to be cautious. Having the plants behind a fence will be best, but use your discretion when choosing a spot.

How to Get Rid of Poisonous Plants

plants
The easiest but possibly most controversial way to get rid of poisonous plants is by using herbicides. This can be especially easy if you own a grass lawn and use an herbicide that targets broadleaf (non-grass) species. You can find many herbicides meant for yard use by simply searching the term online. Once you have purchased the herbicide you will want to make sure to follow the label posted on the container. If you follow the instructions precisely, then everything should run smoothly for you.

If you don’t plan on using herbicides, there are a few organic methods you can use to try to get rid of toxic plants. You can manually pull the plants out of the ground. This is probably one of the most difficult methods because there is no assurance that you will get the whole plant out this way.

You can also try pouring boiling hot water or spraying white vinegar on the target plants. This may take more time than using a synthetic herbicide, but you can feel a little better about using these products.

You can also try to use wood chips to cover a certain area where you do not want anything to grow. This will not stop all the weeds, but the few that make it through can be easily picked by hand.
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Who Is Most at Risk of Plant Poisoning?
Everyone should keep the following in mind to prevent being poisoned:
1
Do not eat any parts, nor contact with the sap of toxic or unknown plants;
2
If you need to kill it, wear long-sleeved shirts, pants and gloves with sharp tools to dig it out completely;
3
Clean the tools with rubbing alcohol or soap and water but do not do that with bare hands;
4
Clean your hands and skin once exposed to plants with soap and water;
5
Consider using barrier creams that contain bentoquatam to prevent poison oak, ivy and sumac rashes;
6
Dump it in special trash cans in sealed garbage packages;
7
Wear properly when you hiking or working in the wilderness. Long pants, long sleeves, gloves, hiking shoes, etc., that protect you from being hurt by any plants;
8
Once you or your family aren’t feeling well after eating, touching or inhaling anything from toxic plants, please call your doctor for help ASAP!
Outdoor Workers
Outdoor Workers and Recreationalists
Those who enjoy the outdoors either as a hobby or as part of their work will rarely see a plant and decide to munch on it (although the scenario is not unheard of). However, they do tend to deal with moving through and brushing aside plants. These people are more at risk of being poisoned by touching toxic plants than by ingesting them.
Outdoor Workers
Foragers
Foragers
Foraging for food and medicinal plants is a desirable skill among people who want to feel at one with the land. This hobby can be very useful and enjoyable, but if done wrong , it can lead to disastrous effects. People who forage are picking and grabbing plants with the full intention of using those plants, most of the time to ingest them.
Foragers
Children
Children
While outdoor workers are more likely to touch poison and foragers are more likely to ingest poison, children can easily do both. These bundles of joy just love to run around and explore the world. They enjoy touching things and occasionally shoving random stuff in their mouth; this is a terrible combination with toxic plants in the mix.
If you let your children run about, it is important to know what are the local toxic plants that they could accidentally get into. Try to educate the children and steer them away from where the toxic plants are located.
Children
Common Toxic Houseplants
Common Toxic Houseplants
When it comes to decorating a house, there is nothing more refreshing than adding some beautiful houseplants. Some common house plants can also be toxic.

Aloe

aloe
Aloe is famous for its sunburn-soothing properties and its gorgeous desert design. However, many people do not realize that the latex the aloe vera plant produces can be mildly toxic to pets and children.

The latex contains a chemical compound known as saponin. Which when ingested, can cause vomiting, diarrhea, and low blood sugar. This, if left unchecked, can lead to dehydration and electrolyte imbalance. The proper response is to contact poison control or a veterinarian to know what to do in your particular circumstance if either your child or pet consumes aloe.

The latex of the plant is similar to the sap of the tree. It is inside the leaf, but sticks mainly toward the edges. If aloe gel is prepared properly it should be safe for use, but be sure to apply it only topically when treating burns.

Philodendron

Philodendron
Philodendron, also known as sweetheart vine, has become a resident at many houses and even businesses. They are glossy green and the leaves elegantly split, displaying interesting designs. Behind this beauty there is a needle-like toxin called calcium oxalate crystals.

These crystals are held within the plant and only affect you, your pets, or your loved ones if the plant tissue is broken. If ingested, the crystals can cause severe swelling, difficulty breathing, stomach pain, burning and pain. If they are accidentally caught on the skin, they can cause skin irritation.

If anyone accidentally ingests philodendron and they find it difficult to breathe or their tongue starts to swell up, it is important to seek medical attention immediately to avoid suffocation. If you have very young children or pets who have a tendency to tear at plants, keep them away from any philodendrons.

Peace Lily

Peace Lily
Peace lilies produce stunningly white flowers that bring to mind peace and serenity. This is one reason they are invited into our homes and given a place to stay. However, similar to philodendrons, the peace lily contains oxalate crystals known as raphides.

The raphides, once ingested, will cause swelling and burning sensations and can also cause skin irritation. Both pets and humans can get these symptoms so it is important to keep these plants from anyone who is likely to tear or chew it. Symptoms can become dire if the raphides cause the tongue and throat to swell to a point where the person or pet is having difficulty breathing. Seek proper medical attention if this is the case.

Snake Plant

Snake Plant
The snake plant is an interesting and popular house plant. Its stark architecture and wavy coloring has made it a fan favorite. This plant too, however, is toxic when ingested or if the sap touches your skin.

Snake plant sap will cause rashes if it comes into contact with your skin. In addition, it will cause diarrhea and vomiting when ingested. Again these symptoms are very serious and would be best avoided by keeping snake plants out of reach or by choosing a different houseplant.
Common Toxic Garden Plants
Common Toxic Garden Plants

Daffodil

Daffodil
Daffodils are a strikingly colorful flower. This can sometimes bring them much attention not from just onlooking adults but children as well. Since kids are more drawn to colorful objects, they may have a higher chance of just grabbing the flower and eating it. Adults have also been known to accidentally grab daffodil bulbs instead of onions.

Why are these mistakes so dangerous? Daffodils contain lycorine, which can induce nausea, vomiting, and diarrhea. It also contains oxalates which can cause swelling and pain. The symptoms can be worse in animals, because if your pets eat daffodils they may experience drowsiness, low blood pressure or even liver damage.

Make sure to call poison control when these symptoms set in. The vomiting and diarrhea have been known to go away after 3 hours, but it is better to be safe than sorry. Ingesting liquids to keep hydration up can be important. If the patient is having difficulty breathing, seek medical attention immediately.

Hydrangea

Hydrangea
Hydrangeas are unique, with their soft blue and pink flowers. They are a great addition to any garden, but should not be snacked on—not that you would want to. Hydrangeas can be especially nasty because they contain compounds known as glycosides. These will release hydrogen cyanide into the bloodstream when consumed. This will block your body’s ability to uptake oxygen to the cells in your body.

The way to combat this kind of poisoning is through getting IVs from the vet or doctor. It is important to contact your medical professional immediately since the symptoms can be fatal within minutes or hours.

Rhododendrons

Rhododendrons
Rhododendron, the state flower of Washington, is also toxic. The multitudinous, pink flowers can be quite dangerous. All parts of this plant are toxic, the leaves and seeds more so than the flowers. However, even the nectar of the flower is toxic and in the Mediterranean, where rhododendrons grow in more dense quantities, the honey from bees who gather rhododendron nectar can be poisonous.

Normally kids and pets do not eat enough to experience the full poisoning effect. However, just eating two leaves is enough to be considered dangerous. The grayanotoxin glycosides within the rhododendron can cause vomiting, diarrhea and irregular heartbeats. Things can get very serious when too much rhododendron is consumed and can lead to necessary medical intervention.

Start by calling poison control first if you suspect anyone has been munching on rhododendrons. The experts there will be able to help guide you through the necessary processes to cure your loved one.

Rhubarb

Rhubarb
Yummy rhubarb has a nasty side to it. While the stems are used in many recipes, including for rhubarb strawberry pie, the leaves are toxic. They contain oxalic acid which is known to blister the mouth, cause nausea, vomiting, diarrhea and kidney stones. The leaves are known to be more toxic to pets than humans, but in either case, it is important to contact poison control immediately to figure out necessary steps to cure the patient.
Common Toxic Weeds in the Yard
Common Toxic Weeds in the Yard

Bittersweet Nightshade

Bittersweet Nightshade
Nightshade is an invasive, noxious weed that is extremely poisonous. It has been found along the East and West Coast of the U.S. It makes its home in areas with disturbed soil. This could be near your garden or areas that have recently had bushes/trees put in.

These plants are dark green with purple flowers that develop into bright red berries. The whole plant is toxic and should be avoided by pets and children alike. If ingested it can cause nausea, vomiting, and diarrhea. The colorful berries are especially enticing to young children. If you see any plants that look similar to tomato or pepper plants that you did not plant in your yard, it is best to just pull them immediately.

Call poison control immediately if you think someone has fallen victim to nightshade.

Buttercups

Buttercups
Buttercups are found throughout the United States, especially in wet areas. The shiny, yellow flowers will pop up in the springtime, accompanying their dandelion friends. However, unlike dandelions, buttercups are not edible.

Buttercups will release a compound called protoanemonin. This toxin is known to cause vomiting, diarrhea, bloody stool, hypersalivation, depression, blisters, and more. These symptoms will affect both humans and animals. The sap may also cause irritation when it comes into contact with skin. These yellow flowers are dangerous and children should be observed cautiously when around them.

Foxgloves

Foxgloves
Foxgloves are beautiful plants that build towers out of vivid purple bell-shaped blossoms. They are very pretty to look at, but they contain a compound known as digoxin. This chemical is used in certain medicines to help people with certain heart conditions. However, the medicine is made by specialists, whereas someone eating foxgloves will receive unregulated amounts of the chemical.

This toxin can make you vomit and lower your heartbeat. This often causes dizziness and faintness. It is extremely important to call poison control immediately to know what to do in the case of foxglove poisoning. Some people have confused the young leaves of foxglove with borage, making adult foragers at risk as well as kids and pets.
How to Tend to or Get Rid of Toxic Plants
How to Tend to or Get Rid of Toxic Plants
Now that you know where to start with toxic plant identification, let us discuss how to either tend to the poisonous plants you decide to keep or get rid of them that plague your yard.

How to Tend to Poisonous Plants

Many plants that are toxic when ingested are also skin irritants. The philodendron is a good example of this. When the sap comes into contact with skin, it can cause a rash to form. To help protect yourself when tending to toxic plants, it is important to wear some sort of gloves.
Tend
Latex gloves may be the best solution due to their disposability. Regular gloves could potentially keep the poisonous sap on their surface. If the gloves aren’t cleaned then you could accidentally touch the irritant or pass it to someone else.

In addition you will want to plan where to keep your deadly beauties. If you have a toxic indoor plant try to keep it up high or out of reach of children and pets. This will keep accidents few and far between. Another idea is keeping your plants in areas that are usually inaccessible to children or pets. Areas such as an office, study room, or guest bedroom could be good locations. If applicable, you could also set up a terrarium for your little plant baby, making it more difficult for curious hands or paws to access.
tend2
If you plan to have outdoor plants, location will be key. You will want to put plants in an area that will be inaccessible to children, pets and even wild animals. You will probably want to avoid planting the plants in the front of your house if kids walk by on a regular basis, just to be cautious. Having the plants behind a fence will be best, but use your discretion when choosing a spot.

How to Get Rid of Poisonous Plants

plants
The easiest but possibly most controversial way to get rid of poisonous plants is by using herbicides. This can be especially easy if you own a grass lawn and use an herbicide that targets broadleaf (non-grass) species. You can find many herbicides meant for yard use by simply searching the term online. Once you have purchased the herbicide you will want to make sure to follow the label posted on the container. If you follow the instructions precisely, then everything should run smoothly for you.

If you don’t plan on using herbicides, there are a few organic methods you can use to try to get rid of toxic plants. You can manually pull the plants out of the ground. This is probably one of the most difficult methods because there is no assurance that you will get the whole plant out this way.

You can also try pouring boiling hot water or spraying white vinegar on the target plants. This may take more time than using a synthetic herbicide, but you can feel a little better about using these products.

You can also try to use wood chips to cover a certain area where you do not want anything to grow. This will not stop all the weeds, but the few that make it through can be easily picked by hand.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
distribution

Distribution of Evergreen azalea

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Habitat of Evergreen azalea

Rocks in ravines
Northern Hemisphere
South Hemisphere

Distribution Map of Evergreen azalea

distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
habit
care_scenes

More Info on Evergreen Azalea Growth and Care

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Basic Care Guide
Common Pests & Diseases
Explore More
Water
Every 1-2 weeks
Evergreen azalea originates from the warm, humid regions of Japan, an environment characterised by ample rainfall. This translates to a preference for consistent, yet moderate watering. Overwatering can be as harmful as underwatering; hence, the humidity and rainfall patterns of its native climate provide useful guidance. Striking a balance between soil moisture and good drainage, akin to its native habitat, enhances the growth and overall health of evergreen azalea.
Watering Techniques
Lighting
Partial sun
Evergreen azalea prefers areas where the sun filters through for most of the day, although it is able to sustain under more intense luminosity. Excessive radiation may lead to leaf burn, while inadequate light can hinder its growth. Being originally from canopied forests, it's familiar with such photic conditions.
Best Sunlight Practices
Transplant
4-6 feet
Transplant evergreen azalea ideally during the delightful period between mid-spring and early summer. Choose a location offering part shade, acidic soil, and good drainage. For optimal results, opt for a cooler time of day, and ensure adequate root space when transplanting.
Transplant Techniques
Temperature
-25 - 41 ℃
Evergreen azalea is a native of warm climates, and requires temperatures between 5 to 35 ℃ (41 to 95 ℉). During the winter months, it is recommended to keep the plant in a cooler location, around 5 to 10 ℃ (41 to 50 ℉) to promote flowering in the spring.
Temp for Healthy Growth
Pruning
Spring, Summer
A popular ornamental shrub, evergreen azalea boasts vibrant flowers and a dense growth habit. Pruning should focus on removing dead or diseased wood, thinning out crowded branches for light and air circulation, and shaping for aesthetic appeal. Ideal pruning time is late spring to early summer, after flowering. Pruning evergreen azalea stimulates growth, encourages blooming, and maintains plant health. Avoid heavy cuts to preserve the natural form.
Pruning techniques
Propagation
Spring, Summer
Evergreen azalea is ideally propagated through cuttings during spring and summer. This method may be challenging, but successful signs include new leaf growth. Ensure good humidity and well-draining soil for best results.
Propagation Techniques
Leaf rot
Leaf rot is a destructive disease primarily caused by fungus, affecting Rhododendron indicum. It greatly impacts the plant's health by decaying its leaves and limiting its ability to absorb nutrients, eventually reducing its growth and causing death if left untreated.
Read More
Leaf blight
Leaf Blight is a plant disease that drastically affects the health of Evergreen azalea. This fungal ailment leads to visible symptoms such as leaf damage, including brown or yellow discolorations, and it can significantly reduce the plant's overall vitality.
Read More
Lace bugs
Lace bugs are sap-feeding insects notorious for damaging the aesthetics of Evergreen azalea due to the stippling and bronzing of leaves. The leaves eventually turn brown and fall off, affecting plant vigor and vitality.
Read More
Brown blotch
Brown spot is a common disease affecting Evergreen azalea that manifests as small, dark spots on the leaves and stems, often leading to yellowing or dropping off of infected leaves. It's caused by the fungus Septoria rhododendri and can significantly hamper plant growth and vitality.
Read More
flower wilting
Wilting in Evergreen azalea is a dangerous condition often causing lethargy, yellowing leaves, and eventually plant death. The disease can be managed effectively if detected and treated early.
Read More
Yellow edges
Yellow edges is a fairly common disease affecting Evergreen azalea, leading to reduced health and productivity. The disease displays clear signs of infection such as yellow edgings on the leaves, often leading to defoliation and in severe cases, death of the plant.
Read More
Dark blotch
Dark blotch is a damaging fungal disease affecting Evergreen azalea, causing unsightly dark spots on leaves. If left untreated, it can compromise the plant's health, degrade its aesthetic appeal, and potentially lead to plant death.
Read More
Toxic
Moderate Toxic to Humans
Evergreen azalea are members of the Rhododendron genus, all of which contain varying levels of a toxin known as Grayanotoxin in all tissues. Physical contact can cause a rash in sensitive people, the pollen can irritate mucus membranes, and ingesting it can cause nausea, vomiting, arrhythmia, low blood pressure, and hallucinations in humans. Grayanotoxin is so strong that even the amounts contained in honey made from Rhododendron pollen can have negative effects.
Toxic Details
Feng shui direction
East
The evergreen azalea is well-suited to East-facing settings, as it resonates with the rejuvenating energy of the rising sun. Its evergreen nature symbolizes stability and endurance, fostering a harmonious environment. While Feng Shui interpretation varies, the evergreen azalea tends to reinforce positive energies and complement diverse spaces effectively.
Fengshui Details
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Plants Related to Evergreen azalea

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Curry leaf tree
Curry leaf tree
The leaves of the curry leaf tree (Murraya koenigii) are frequently used in Indian and Thai cooking. They are stewed, roasted, and used in soups and sauces. The plant's genus name was given in honor of Johann Andreas Murray, a Swedish physician who published an influential work on the properties of plants.
Japanese holly
Japanese holly
Japanese holly (Ilex crenata) is an evergreen shrub native to China, Japan, and Korea. Japanese holly is a flowering plant, and its flowers transition into berries during summer. This plant is popularly planted as an ornamental shrub and can be grown as a Bonsai tree.
Beefsteak plant
Beefsteak plant
Beefsteak plant (Perilla frutescens) is a relative of mint native to South Asia. It is popular in gardens of all kinds because it is edible and attracts butterflies. The plant's leaves smell like mint, but the oil extracted from the beefsteak plant is said to have a nutty flavor.
Carolina horsenettle
Carolina horsenettle
Carolina horsenettle (Solanum carolinense) is a perennial herb native to the southeastern United States that is related to nightshade. Carolina horsenettle is a nettle in name, but it is not taxonomically a true nettle. All the parts of the plant are poisonous.
Night-Scented Lily
Night-Scented Lily
Night-Scented Lily (Alocasia odora) is a perennial plant whose large leaves grow to 61 cm long and resemble an elephant's ear. Fragrant, peach-colored blossoms bloom in spring and summer. Thrives in heat and humidity, so give it plenty of sun or partial shade in moist, organically rich soil.
Common purslane
Common purslane
Portulaca oleracea, colloquially known as common purslane, is an annual succulent species with reddish stems and tiny yellow, five-petal flowers. It is used for culinary purposes in various parts of the world, most often raw, in salads. Common purslane is also a good companion plant for crops that thrive in moist soils.
Cape jasmine
Cape jasmine
Gardenia jasminoides is an evergreen shrub with unique, glossy evergreen leaves and stunning flowers. The sophisticated, matte white flowers are often used in bouquets. The exceptional beauty of this ornamental plant has made it a popular and highly appreciated plant amongst gardeners and horticulturalists.
Golden pothos
Golden pothos
The golden pothos (Epipremnum aureum) is a popular houseplant that is commonly seen in Australia, Asia, and the West Indies. It goes by many nicknames, including "devil's ivy", because it is so hard to kill and can even grow in low light conditions. Golden pothos has poisonous sap, so it should be kept away from pets and children.
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Evergreen azalea play
Evergreen azalea
Evergreen azalea
Evergreen azalea
Evergreen azalea
Evergreen azalea
Evergreen azalea
Rhododendron indicum
Also known as: Tsutsusi azalea
Water
Water
Every 1-2 weeks
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Sunlight
Sunlight
Partial sun
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Toxic to Human & Pets
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Questions About Evergreen azalea

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What is the best way to water my Evergreen azalea?
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What should I do if I water my Evergreen azalea too much or too little?
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How often should I water my Evergreen azalea?
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How much water does my Evergreen azalea need?
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How can I tell if i'm watering my Evergreen azalea enough?
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How can I water my Evergreen azalea at different growth stages?
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How can I water my Evergreen azalea through the seasons?
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Key Facts About Evergreen azalea

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Attributes of Evergreen azalea

Lifespan
Perennial
Plant Type
Shrub
Planting Time
Spring, Early summer, Fall, Early winter
Bloom Time
Mid spring, Late spring, Early summer
Plant Height
1 m to 2 m
Spread
60 cm to 90 cm
Leaf Color
Green
Flower Size
3.5 cm to 6 cm
Flower Color
Pink
Red
Purple
Stem Color
Red
Brown
Dormancy
Winter dormancy
Leaf type
Evergreen
Ideal Temperature
5 - 35 ℃
Growth Season
Spring
Growth Rate
Slow
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Name story

Evergreen azalea
Satsuki azalea

Symbolism

Usages

Garden Use

Scientific Classification of Evergreen azalea

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Common Pests & Diseases About Evergreen azalea

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Common issues for Evergreen azalea based on 10 million real cases
Leaf rot
Leaf rot Leaf rot Leaf rot
Leaf rot is a destructive disease primarily caused by fungus, affecting Rhododendron indicum. It greatly impacts the plant's health by decaying its leaves and limiting its ability to absorb nutrients, eventually reducing its growth and causing death if left untreated.
Learn More About the Leaf rot more
Brown spot
Brown spot Brown spot Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
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Flower withering
Flower withering Flower withering Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
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Wilting after blooming
Wilting after blooming Wilting after blooming Wilting after blooming
Flowers may wither for a variety of reasons.
Solutions: Check the soil or potting medium. Coarse textures can allow water to drain too rapidly, preventing the plant from taking up enough. If the soil and roots seem very dry, add sphagnum moss or other mediums that hold water. Water according to recommendations for each plant's species. Low humidity can be corrected by misting the plant regularly or placing it near a humidifier. Keeping it near other plants helps, too. Keep the environment consistent in terms of temperature, humidity, and lighting. Keep it away from vents, heaters, and air conditioners, and avoid moving it to locations where it will experience a temperature shock. Hot, dry heat, and cold drafts are problematic for many plants. Especially if the plant is outside, it could be experiencing heat or light stress. Try moving it to a shadier location.
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Lace bugs
Lace bugs Lace bugs Lace bugs
Lace bugs are 3 to 5 mm translucent flying insects that suck sap from the plant.
Solutions: Lace bugs can be controlled in various ways. For severe cases: Introduce beneficial insects that eat lace bugs, such as parasitoid wasps, assassin bugs, and lady beetles. Avoid spraying unnecessary pesticides so as not to reduce the populations of these helpful predators. Spray plants with insecticidal soap or neem oil under all leaves of the affected and surrounding plants. Make sure the soap hits the insects. Spray in the morning, evening, or on a cloudy day to avoid damaging plant tissue. Trim and burn heavily infected plant limbs. As a last resort use an insecticide containing pyrethroids to kill the lace bugs. Remember that these products will also likely kill beneficial insects such as bees. For less severe cases: Rub off lace bugs from under the leaves using a damp cloth. Use the strong stream of a hose to spray these pests off plants. This washes the nymphs off and onto the ground where they cannot return to the leaves of the plant. Large trees generally do not need to be treated for lace bugs, since they don't damage their overall health.
Learn More About the Lace bugs more
Petal blight
Petal blight Petal blight Petal blight
Bacterial infections can cause flowers to become soft and rotten.
Solutions: Like other fungal diseases, the progression of petal blight is extremely difficult to stop and impossible to reverse once it infects a plant. The best course of action is to remove all damaged flowers immediately and dispose of them entirely. Do not put them in the compost pile, where spores could grow and spread.
Learn More About the Petal blight more
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Leaf rot
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf rot Disease on Evergreen azalea?
What is Leaf rot Disease on Evergreen azalea?
Leaf rot is a destructive disease primarily caused by fungus, affecting Rhododendron indicum. It greatly impacts the plant's health by decaying its leaves and limiting its ability to absorb nutrients, eventually reducing its growth and causing death if left untreated.
Symptom Analysis
Symptom Analysis
Evergreen azalea's noticeable symptoms are yellowing of its green foliage, leaving irregular brownish-black spots, followed by wilting and eventual leaf drop as the rot progresses. Young plants display stunted growth.
What Causes Leaf rot Disease on Evergreen azalea?
What Causes Leaf rot Disease on Evergreen azalea?
1
Fungal infection
Phytophthora spp., the most common fungal species, causes leaf rot, infesting the plant under warm, wet conditions.
2
Environmental factors
Poor drainage, over-irrigation and compacted, poorly aerated soil can exacerbate leaf rot incidence.
How to Treat Leaf rot Disease on Evergreen azalea?
How to Treat Leaf rot Disease on Evergreen azalea?
1
Non pesticide
Improve drainage: Implement adequate soil drainage to avoid waterlogging conditions, which promote fungal growth.

Pruning: Remove infected leaves to prevent the spread of the disease to healthy parts.
2
Pesticide
Fungicide application: Apply a suitable fungicide, such as those containing mefenoxam or fosetyl-aluminium, following label instructions for effective treatment.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
Solutions
Solutions
In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary.
Organic options won’t kill the fungus, but will prevent it from spreading.
  1. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear.
  2. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread.
  3. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Prevention
Prevention
Like many other diseases, it is easier to prevent brown spot than cure it, and this is done through cultural practices.
  • Clear fall leaves from the ground before winter to minimize places where fungi and bacteria can overwinter.
  • Maintain good air movement between plants through proper plant spacing.
  • Increase air circulation through the center of plants through pruning.
  • Thoroughly clean all pruning tools after working with diseased plants.
  • Never dispose of disease plant material in a compost pile.
  • Avoid overhead watering to keep moisture off of the foliage.
  • Keep plants healthy by providing adequate sunlight, water, and fertilizer.
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Flower withering
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Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Overview
Overview
Flower withering occurs when flowers become weak, droopy, wilted, or faded until they can’t be revived. During withering, they begin to wrinkle and shrink until the flower becomes completely dry or dead.
Any flowers, regardless of the plant type or the climate they are grown in, are susceptible to withering. It is a worldwide problem across houseplants, herbs, flowering ornamentals, trees, shrubs, garden vegetables, and food crops.
Unlike wilting—which withering is often confused with—withering can be caused by different things and is often due to more than a lack of water. Withering can be fatal in severe cases.
Symptom Analysis
Symptom Analysis
Flower withering progresses from very mild cases to severe occurrences that kill the flower. The severity of the symptoms is related to the cause and how long the condition is allowed to progress before action is taken.
  • Wilted, droopy flowers
  • Petals and leaves begin to wrinkle
  • Brown papery streaks or spots appear on the petals and leaf tips
  • Flowerhead shrink in size
  • Petal color fades
  • Yellowing leaves
  • Complete death of the flower
Disease Cause
Disease Cause
The main causes of flower withering include natural age progress, lack of water, nutritional deficiencies, and bacterial or fungal diseases. It’s critical to determine the underlying cause when flower withering is noticed. This will guide the best course of action, if treatment is possible.
Check the soil for moisture and then closely examine the entire plant for signs of nutrient deficiencies. If neither of those appears to be the cause then cut open the stem below a flower. If a cross-section reveals brown or rust-colored stains it is safe to assume that this is a bacterial or fungal infection.
If the flower is nearing the end of its normal lifespan, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence, or cell aging and death. Cell division stops and the plant begins breaking down resources within the flower to use in other parts of the plant.
In all other cases, flower withering happens when the plant seals off the stem as a defense mechanism, stopping transport within the vascular system. This prevents further water loss through the flowers but also stops bacteria and fungi from moving to healthy parts of the plant. Once water and nutrient transport stops, the flower begins to wither and ultimately die.
Solutions
Solutions
If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface.
In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well.
If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Prevention
Prevention
This is definitely one of those instances where prevention is more effective than cure. Here are some preventative measures for avoiding premature flower withering.
  • Water plants according to their needs -- either keep the soil slightly moist or allow the top inch or two to dry out before watering again.
  • Fertilize lightly on a consistent basis, depending upon the plant’s growth. Quick-growing plants and those that flower or develop fruit will need more frequent fertilizing than slow-growing plants.
  • Purchase plants that are certified disease- or pathogen-free.
  • Look for disease-resistant cultivars.
  • Isolate plants showing disease symptoms to prevent the spread to neighboring plants.
  • Practice good plant hygiene by removing any fallen plant material as soon as possible.
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Wilting after blooming
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Wilting after blooming
Flowers may wither for a variety of reasons.
Overview
Overview
Wilting after blooming is sometimes a natural aging process of the flower, while other times it may indicate a problem. Orchids, for example, can bloom for anywhere from two weeks to three months, so wilting after a few days signals a problem for most varieties. This can happen to virtually any ornamental flowering plant, but those with shallow roots and limited tolerance for drought, full sun, and low humidity are more susceptible.
This is a common problem, and often has an easy fix. Sometimes, however, it is the result of more serious causes such as pests or disease of the root system.
Symptom Analysis
Symptom Analysis
  • At first, flowers may look a little limp.
  • Petals may start to appear dried out and turn brown.
  • Eventually they may drop off the plant all together.
Disease Cause
Disease Cause
Wilting blooms can be a sign of an unhealthy root system. Any condition that prevents the plant from absorbing enough water and nutrition can result in wilting blooms and sometimes other symptoms. If the plant doesn’t have enough water, it cannot maintain appropriate pressure within stems, leaves, and blooms, causing them to wilt.
This can result from physical damage – for example from root breakage during re-potting or attack by insects like cutworms. If you recently re-potted your plant, physical damage to the roots is a likely cause. If you see insects, they may be eating leaves, roots, or flowers. Fungal infections can also cause root rot and damage, preventing water and nutrient uptake.
Finally, wilting blooms can result simply from age. If no other symptoms are visible, it may simply signal the natural end of the flower’s lifespan. If it seems premature, this may be caused by environmental factors: water, humidity, light, or stress. Under-watering is a common cause. Similarly, plants adapted to high humidity dry out easily when humidity is low, like during winter or in dry climates. Too much light can also stress plants that need shade, causing blooms to wilt.
Solutions
Solutions
  • Check the soil or potting medium. Coarse textures can allow water to drain too rapidly, preventing the plant from taking up enough. If the soil and roots seem very dry, add sphagnum moss or other mediums that hold water.
  • Water according to recommendations for each plant's species.
  • Low humidity can be corrected by misting the plant regularly or placing it near a humidifier. Keeping it near other plants helps, too.
  • Keep the environment consistent in terms of temperature, humidity, and lighting. Keep it away from vents, heaters, and air conditioners, and avoid moving it to locations where it will experience a temperature shock. Hot, dry heat, and cold drafts are problematic for many plants.
  • Especially if the plant is outside, it could be experiencing heat or light stress. Try moving it to a shadier location.
Prevention
Prevention
  • Read up on moisture, light, and soil type preferences for each plant to avoid underwatering, incorrect light levels, or other conditions that can cause wilting blooms.
  • Avoid re-potting during the flowering period. This causes additional stress on the plants because they need to repair root damage and adapt to the new micro-environment, all of which can result in wilting.
  • One other potential cause is ethylene gas, a plant hormone related to ripening. Some fruits and vegetables emit ethylene, especially bananas. Apples, grapes, melons, avocados, and potatoes can also give it off, so keep flowering plants away from fresh produce.
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Lace bugs
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Lace bugs
Lace bugs are 3 to 5 mm translucent flying insects that suck sap from the plant.
Overview
Overview
Lace bugs are tiny winged insect pests that feed on the sap of the plant that they infest. There are a number of different types, which each attack certain species of plants. A severe infestation can cause leaf drop, and a reduction of fruit yield also occurs on infested fruit trees. They are most active in late summer and fall.
Lace bugs can be difficult to detect, so damage may be seen before the insect pests are detected. While adult lace bugs are brown to black with lacy wings that lay flat against their body, the nymphs are clear when they first hatch and then gradually turn black. They have small spines around their bodies. These nymphs will mature into adults within 3 or 4 weeks.
Although the damage caused by lace bugs is somewhat unsightly, it does not seriously harm the plant. The most susceptible species of plants include azaleas, rhododendrons, olive and macadamia trees, and plane trees.
Symptom Analysis
Symptom Analysis
When lace bugs infest a plant's leaves, yellow spots can be seen on the upper surface. The underside of the leaves is usually fouled with black bug droppings that are tar-like.
Lace bugs spend their entire lifecycle on the leaves of the plant they have infested, from egg to adult. They are tiny sap-sucking insects that are around 3 mm long. The adults lay their eggs on the undersides of the leaves. When the eggs hatch, the nymphs start to feed on the sap of the leaves.
When an entire leaf is infested, it takes on a bronze appearance. Eventually, severely affected leaves will drop off the plant.
Some lace bugs also feed on flower buds. This causes the tips of the flowers to blacken. Eventually, the entire flower will turn black and drop off.
Solutions
Solutions
Lace bugs can be controlled in various ways.
For severe cases:
  1. Introduce beneficial insects that eat lace bugs, such as parasitoid wasps, assassin bugs, and lady beetles. Avoid spraying unnecessary pesticides so as not to reduce the populations of these helpful predators.
  2. Spray plants with insecticidal soap or neem oil under all leaves of the affected and surrounding plants. Make sure the soap hits the insects. Spray in the morning, evening, or on a cloudy day to avoid damaging plant tissue.
  3. Trim and burn heavily infected plant limbs.
  4. As a last resort use an insecticide containing pyrethroids to kill the lace bugs. Remember that these products will also likely kill beneficial insects such as bees.
For less severe cases:
  1. Rub off lace bugs from under the leaves using a damp cloth.
  2. Use the strong stream of a hose to spray these pests off plants. This washes the nymphs off and onto the ground where they cannot return to the leaves of the plant.
  3. Large trees generally do not need to be treated for lace bugs, since they don't damage their overall health.
Prevention
Prevention
Simple steps for preventing lace bugs:
  1. Avoid buying or transplanting plants with an infestation, by examining the leaves closely.
  2. Keep plants in top health with regular watering, compost, and fertilizer applications.
  3. Move heat-stressed plants in high sun locations to partial shade.
  4. Clear debris around plants to remove overwintering insects.
  5. Check plants for lace bugs in the late spring before their population peaks in the summer. Treat before populations increase.
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Petal blight
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Petal blight
Bacterial infections can cause flowers to become soft and rotten.
Overview
Overview
Petal blight, sometimes called flower blight, is a fungal disease that only affects the blooms of some ornamental flowering plants. As the infection progresses, it destroys the flower, yet it never damages the vegetative or green parts of the plant.
When flowers are infected, the symptoms look similar to Botrytis blight, but Botrytis also infects dead or dormant vegetative tissue.
The disease was first discovered in Japanese plants in 1919 and in the US in the late 1930s. Presently it is also found in New Zealand, Australia, and parts of Europe. Unfortunately, no plants have high resistance to petal blight, but specific cultivars are more susceptible than others, particularly species with double blooms.
Petal blight infection rates are high when temperatures are mild to warm (optimum temperatures are 15 to 21 ℃) and the weather is misty or rainy.
Overall, petal blight is an aesthetic problem that ruins blossoms. The disease is not harmful to the long-term health of the plant.
Symptom Analysis
Symptom Analysis
The severity of the symptoms varies, depending upon the species of plant infected. Signs of petal blight are commonly seen on the blooms just after they open.
  • Pallid spots on colored petals.
  • Brown spots on white petals.
  • Browning around the petal edges.
  • Small spots look water-soaked.
  • Spots rapidly enlarge and merge.
  • Flowers become limp.
  • The entire flower turns light brown, but does not crumble.
  • Flowers become slimy at first and then take on a leathery texture.
  • A ring of white or gray mycelium can be seen at the base of the petals.
Disease Cause
Disease Cause
Petal blight is caused by several different fungi, with each type infecting specific plants. Ovulinia azalea infects azaleas species and cultivars, and rhododendrons. Ciborinia camelliae infects camellia cultivars.
Shortly after blooming, the fungus infects the base of the flowers by the calyx. The fungus produces cell wall-degrading enzymes that destroy flowers within a couple of days. When the flowers fall to the ground, the fungus' hard fruiting bodies fall to the soil as well, overwintering until the following spring.
When temperatures hit the optimum range the following season, spores are transmitted by insects or can spread on wind currents up to about 12 miles. Once in the soil, the pathogen can be active for three to five years.
Solutions
Solutions
Like other fungal diseases, the progression of petal blight is extremely difficult to stop and impossible to reverse once it infects a plant. The best course of action is to remove all damaged flowers immediately and dispose of them entirely. Do not put them in the compost pile, where spores could grow and spread.
Prevention
Prevention
  • Apply a preventative dose of fungicide as soon as blooms start to show color on the plant. The preventative can be applied as a soil drench or directly to the flowers on the plant.
  • Avoid overhead watering during blooming.
  • Remove any leaf litter and dead flowers at the end of the season.
  • Cover the ground under infected plants with 4” of fresh organic mulch before winter, taking care not to disturb the infected soil.
  • Buy bare-root specimens when available.
  • When potted plants are purchased, remove the top layer of potting soil and replace it with fresh mulch.
  • Plant cultivars that bloom early in the season before the temperatures get high enough for petal blight pathogens to be spreading.
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toxic

Evergreen azalea and Their Toxicity

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* The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.
Moderate Toxic to Humans
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Toxic to Dogs
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Toxic to Cats
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Who Is Most at Risk of Plant Poisoning?
Your pets like cats and dogs can be poisoned by them as well!
1
Do not let your lovely pets eat any parts, nor contact with the sap of toxic or unknown plants;
2
It’s better to kill those growing around your house. Wear long-sleeved shirts, pants and gloves with sharp tools to dig it out completely;
3
Clean the tools with rubbing alcohol or soap and water but do not do that with bare hands;
4
Clean your hands and skin once exposed to plants with soap and water;
5
Consider using barrier creams that contain bentoquatam to prevent poison oak, ivy and sumac rashes;
6
Dump it in special trash cans in sealed garbage packages, and do not let your pets reach it;Do not let your lovely pets eat any parts, nor contact with the sap of toxic or unknown plants;
7
If you take your pets to hike with you in the wild, please don’t let them eat any plants that you don’t know;
8
Once your pets eat, touch or inhale anything from toxic plants and act abnormally, please call the doctors for help ASAP!
pets
Pets
Some pets are less likely than children to eat and touch just about everything. This is good, as a pet owner. However, you know your pet best, and it is up to you to keep them safe. There are plenty of poisonous weeds that can grow within the confines of your lawn, which might make your dogs or cats ill or worse if they eat them. Try to have an idea of what toxic plants grow in your area and keep them under control and your pets away from them.
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Common Toxic Houseplants
Common Toxic Houseplants
When it comes to decorating a house, there is nothing more refreshing than adding some beautiful houseplants. Some common house plants can also be toxic.

Aloe

aloe
Aloe is famous for its sunburn-soothing properties and its gorgeous desert design. However, many people do not realize that the latex the aloe vera plant produces can be mildly toxic to pets and children.

The latex contains a chemical compound known as saponin. Which when ingested, can cause vomiting, diarrhea, and low blood sugar. This, if left unchecked, can lead to dehydration and electrolyte imbalance. The proper response is to contact poison control or a veterinarian to know what to do in your particular circumstance if either your child or pet consumes aloe.

The latex of the plant is similar to the sap of the tree. It is inside the leaf, but sticks mainly toward the edges. If aloe gel is prepared properly it should be safe for use, but be sure to apply it only topically when treating burns.

Philodendron

Philodendron
Philodendron, also known as sweetheart vine, has become a resident at many houses and even businesses. They are glossy green and the leaves elegantly split, displaying interesting designs. Behind this beauty there is a needle-like toxin called calcium oxalate crystals.

These crystals are held within the plant and only affect you, your pets, or your loved ones if the plant tissue is broken. If ingested, the crystals can cause severe swelling, difficulty breathing, stomach pain, burning and pain. If they are accidentally caught on the skin, they can cause skin irritation.

If anyone accidentally ingests philodendron and they find it difficult to breathe or their tongue starts to swell up, it is important to seek medical attention immediately to avoid suffocation. If you have very young children or pets who have a tendency to tear at plants, keep them away from any philodendrons.

Peace Lily

Peace Lily
Peace lilies produce stunningly white flowers that bring to mind peace and serenity. This is one reason they are invited into our homes and given a place to stay. However, similar to philodendrons, the peace lily contains oxalate crystals known as raphides.

The raphides, once ingested, will cause swelling and burning sensations and can also cause skin irritation. Both pets and humans can get these symptoms so it is important to keep these plants from anyone who is likely to tear or chew it. Symptoms can become dire if the raphides cause the tongue and throat to swell to a point where the person or pet is having difficulty breathing. Seek proper medical attention if this is the case.

Snake Plant

Snake Plant
The snake plant is an interesting and popular house plant. Its stark architecture and wavy coloring has made it a fan favorite. This plant too, however, is toxic when ingested or if the sap touches your skin.

Snake plant sap will cause rashes if it comes into contact with your skin. In addition, it will cause diarrhea and vomiting when ingested. Again these symptoms are very serious and would be best avoided by keeping snake plants out of reach or by choosing a different houseplant.
Common Toxic Garden Plants
Common Toxic Garden Plants

Daffodil

Daffodil
Daffodils are a strikingly colorful flower. This can sometimes bring them much attention not from just onlooking adults but children as well. Since kids are more drawn to colorful objects, they may have a higher chance of just grabbing the flower and eating it. Adults have also been known to accidentally grab daffodil bulbs instead of onions.

Why are these mistakes so dangerous? Daffodils contain lycorine, which can induce nausea, vomiting, and diarrhea. It also contains oxalates which can cause swelling and pain. The symptoms can be worse in animals, because if your pets eat daffodils they may experience drowsiness, low blood pressure or even liver damage.

Make sure to call poison control when these symptoms set in. The vomiting and diarrhea have been known to go away after 3 hours, but it is better to be safe than sorry. Ingesting liquids to keep hydration up can be important. If the patient is having difficulty breathing, seek medical attention immediately.

Hydrangea

Hydrangea
Hydrangeas are unique, with their soft blue and pink flowers. They are a great addition to any garden, but should not be snacked on—not that you would want to. Hydrangeas can be especially nasty because they contain compounds known as glycosides. These will release hydrogen cyanide into the bloodstream when consumed. This will block your body’s ability to uptake oxygen to the cells in your body.

The way to combat this kind of poisoning is through getting IVs from the vet or doctor. It is important to contact your medical professional immediately since the symptoms can be fatal within minutes or hours.

Rhododendrons

Rhododendrons
Rhododendron, the state flower of Washington, is also toxic. The multitudinous, pink flowers can be quite dangerous. All parts of this plant are toxic, the leaves and seeds more so than the flowers. However, even the nectar of the flower is toxic and in the Mediterranean, where rhododendrons grow in more dense quantities, the honey from bees who gather rhododendron nectar can be poisonous.

Normally kids and pets do not eat enough to experience the full poisoning effect. However, just eating two leaves is enough to be considered dangerous. The grayanotoxin glycosides within the rhododendron can cause vomiting, diarrhea and irregular heartbeats. Things can get very serious when too much rhododendron is consumed and can lead to necessary medical intervention.

Start by calling poison control first if you suspect anyone has been munching on rhododendrons. The experts there will be able to help guide you through the necessary processes to cure your loved one.

Rhubarb

Rhubarb
Yummy rhubarb has a nasty side to it. While the stems are used in many recipes, including for rhubarb strawberry pie, the leaves are toxic. They contain oxalic acid which is known to blister the mouth, cause nausea, vomiting, diarrhea and kidney stones. The leaves are known to be more toxic to pets than humans, but in either case, it is important to contact poison control immediately to figure out necessary steps to cure the patient.
Common Toxic Weeds in the Yard
Common Toxic Weeds in the Yard

Bittersweet Nightshade

Bittersweet Nightshade
Nightshade is an invasive, noxious weed that is extremely poisonous. It has been found along the East and West Coast of the U.S. It makes its home in areas with disturbed soil. This could be near your garden or areas that have recently had bushes/trees put in.

These plants are dark green with purple flowers that develop into bright red berries. The whole plant is toxic and should be avoided by pets and children alike. If ingested it can cause nausea, vomiting, and diarrhea. The colorful berries are especially enticing to young children. If you see any plants that look similar to tomato or pepper plants that you did not plant in your yard, it is best to just pull them immediately.

Call poison control immediately if you think someone has fallen victim to nightshade.

Buttercups

Buttercups
Buttercups are found throughout the United States, especially in wet areas. The shiny, yellow flowers will pop up in the springtime, accompanying their dandelion friends. However, unlike dandelions, buttercups are not edible.

Buttercups will release a compound called protoanemonin. This toxin is known to cause vomiting, diarrhea, bloody stool, hypersalivation, depression, blisters, and more. These symptoms will affect both humans and animals. The sap may also cause irritation when it comes into contact with skin. These yellow flowers are dangerous and children should be observed cautiously when around them.

Foxgloves

Foxgloves
Foxgloves are beautiful plants that build towers out of vivid purple bell-shaped blossoms. They are very pretty to look at, but they contain a compound known as digoxin. This chemical is used in certain medicines to help people with certain heart conditions. However, the medicine is made by specialists, whereas someone eating foxgloves will receive unregulated amounts of the chemical.

This toxin can make you vomit and lower your heartbeat. This often causes dizziness and faintness. It is extremely important to call poison control immediately to know what to do in the case of foxglove poisoning. Some people have confused the young leaves of foxglove with borage, making adult foragers at risk as well as kids and pets.
How to Tend to or Get Rid of Toxic Plants
How to Tend to or Get Rid of Toxic Plants
Now that you know where to start with toxic plant identification, let us discuss how to either tend to the poisonous plants you decide to keep or get rid of them that plague your yard.

How to Tend to Poisonous Plants

Many plants that are toxic when ingested are also skin irritants. The philodendron is a good example of this. When the sap comes into contact with skin, it can cause a rash to form. To help protect yourself when tending to toxic plants, it is important to wear some sort of gloves.
Tend
Latex gloves may be the best solution due to their disposability. Regular gloves could potentially keep the poisonous sap on their surface. If the gloves aren’t cleaned then you could accidentally touch the irritant or pass it to someone else.

In addition you will want to plan where to keep your deadly beauties. If you have a toxic indoor plant try to keep it up high or out of reach of children and pets. This will keep accidents few and far between. Another idea is keeping your plants in areas that are usually inaccessible to children or pets. Areas such as an office, study room, or guest bedroom could be good locations. If applicable, you could also set up a terrarium for your little plant baby, making it more difficult for curious hands or paws to access.
tend2
If you plan to have outdoor plants, location will be key. You will want to put plants in an area that will be inaccessible to children, pets and even wild animals. You will probably want to avoid planting the plants in the front of your house if kids walk by on a regular basis, just to be cautious. Having the plants behind a fence will be best, but use your discretion when choosing a spot.

How to Get Rid of Poisonous Plants

plants
The easiest but possibly most controversial way to get rid of poisonous plants is by using herbicides. This can be especially easy if you own a grass lawn and use an herbicide that targets broadleaf (non-grass) species. You can find many herbicides meant for yard use by simply searching the term online. Once you have purchased the herbicide you will want to make sure to follow the label posted on the container. If you follow the instructions precisely, then everything should run smoothly for you.

If you don’t plan on using herbicides, there are a few organic methods you can use to try to get rid of toxic plants. You can manually pull the plants out of the ground. This is probably one of the most difficult methods because there is no assurance that you will get the whole plant out this way.

You can also try pouring boiling hot water or spraying white vinegar on the target plants. This may take more time than using a synthetic herbicide, but you can feel a little better about using these products.

You can also try to use wood chips to cover a certain area where you do not want anything to grow. This will not stop all the weeds, but the few that make it through can be easily picked by hand.
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Who Is Most at Risk of Plant Poisoning?
Everyone should keep the following in mind to prevent being poisoned:
1
Do not eat any parts, nor contact with the sap of toxic or unknown plants;
2
If you need to kill it, wear long-sleeved shirts, pants and gloves with sharp tools to dig it out completely;
3
Clean the tools with rubbing alcohol or soap and water but do not do that with bare hands;
4
Clean your hands and skin once exposed to plants with soap and water;
5
Consider using barrier creams that contain bentoquatam to prevent poison oak, ivy and sumac rashes;
6
Dump it in special trash cans in sealed garbage packages;
7
Wear properly when you hiking or working in the wilderness. Long pants, long sleeves, gloves, hiking shoes, etc., that protect you from being hurt by any plants;
8
Once you or your family aren’t feeling well after eating, touching or inhaling anything from toxic plants, please call your doctor for help ASAP!
Outdoor Workers
Outdoor Workers and Recreationalists
Those who enjoy the outdoors either as a hobby or as part of their work will rarely see a plant and decide to munch on it (although the scenario is not unheard of). However, they do tend to deal with moving through and brushing aside plants. These people are more at risk of being poisoned by touching toxic plants than by ingesting them.
Outdoor Workers
Foragers
Foragers
Foraging for food and medicinal plants is a desirable skill among people who want to feel at one with the land. This hobby can be very useful and enjoyable, but if done wrong , it can lead to disastrous effects. People who forage are picking and grabbing plants with the full intention of using those plants, most of the time to ingest them.
Foragers
Children
Children
While outdoor workers are more likely to touch poison and foragers are more likely to ingest poison, children can easily do both. These bundles of joy just love to run around and explore the world. They enjoy touching things and occasionally shoving random stuff in their mouth; this is a terrible combination with toxic plants in the mix.
If you let your children run about, it is important to know what are the local toxic plants that they could accidentally get into. Try to educate the children and steer them away from where the toxic plants are located.
Children
Common Toxic Houseplants
Common Toxic Houseplants
When it comes to decorating a house, there is nothing more refreshing than adding some beautiful houseplants. Some common house plants can also be toxic.

Aloe

aloe
Aloe is famous for its sunburn-soothing properties and its gorgeous desert design. However, many people do not realize that the latex the aloe vera plant produces can be mildly toxic to pets and children.

The latex contains a chemical compound known as saponin. Which when ingested, can cause vomiting, diarrhea, and low blood sugar. This, if left unchecked, can lead to dehydration and electrolyte imbalance. The proper response is to contact poison control or a veterinarian to know what to do in your particular circumstance if either your child or pet consumes aloe.

The latex of the plant is similar to the sap of the tree. It is inside the leaf, but sticks mainly toward the edges. If aloe gel is prepared properly it should be safe for use, but be sure to apply it only topically when treating burns.

Philodendron

Philodendron
Philodendron, also known as sweetheart vine, has become a resident at many houses and even businesses. They are glossy green and the leaves elegantly split, displaying interesting designs. Behind this beauty there is a needle-like toxin called calcium oxalate crystals.

These crystals are held within the plant and only affect you, your pets, or your loved ones if the plant tissue is broken. If ingested, the crystals can cause severe swelling, difficulty breathing, stomach pain, burning and pain. If they are accidentally caught on the skin, they can cause skin irritation.

If anyone accidentally ingests philodendron and they find it difficult to breathe or their tongue starts to swell up, it is important to seek medical attention immediately to avoid suffocation. If you have very young children or pets who have a tendency to tear at plants, keep them away from any philodendrons.

Peace Lily

Peace Lily
Peace lilies produce stunningly white flowers that bring to mind peace and serenity. This is one reason they are invited into our homes and given a place to stay. However, similar to philodendrons, the peace lily contains oxalate crystals known as raphides.

The raphides, once ingested, will cause swelling and burning sensations and can also cause skin irritation. Both pets and humans can get these symptoms so it is important to keep these plants from anyone who is likely to tear or chew it. Symptoms can become dire if the raphides cause the tongue and throat to swell to a point where the person or pet is having difficulty breathing. Seek proper medical attention if this is the case.

Snake Plant

Snake Plant
The snake plant is an interesting and popular house plant. Its stark architecture and wavy coloring has made it a fan favorite. This plant too, however, is toxic when ingested or if the sap touches your skin.

Snake plant sap will cause rashes if it comes into contact with your skin. In addition, it will cause diarrhea and vomiting when ingested. Again these symptoms are very serious and would be best avoided by keeping snake plants out of reach or by choosing a different houseplant.
Common Toxic Garden Plants
Common Toxic Garden Plants

Daffodil

Daffodil
Daffodils are a strikingly colorful flower. This can sometimes bring them much attention not from just onlooking adults but children as well. Since kids are more drawn to colorful objects, they may have a higher chance of just grabbing the flower and eating it. Adults have also been known to accidentally grab daffodil bulbs instead of onions.

Why are these mistakes so dangerous? Daffodils contain lycorine, which can induce nausea, vomiting, and diarrhea. It also contains oxalates which can cause swelling and pain. The symptoms can be worse in animals, because if your pets eat daffodils they may experience drowsiness, low blood pressure or even liver damage.

Make sure to call poison control when these symptoms set in. The vomiting and diarrhea have been known to go away after 3 hours, but it is better to be safe than sorry. Ingesting liquids to keep hydration up can be important. If the patient is having difficulty breathing, seek medical attention immediately.

Hydrangea

Hydrangea
Hydrangeas are unique, with their soft blue and pink flowers. They are a great addition to any garden, but should not be snacked on—not that you would want to. Hydrangeas can be especially nasty because they contain compounds known as glycosides. These will release hydrogen cyanide into the bloodstream when consumed. This will block your body’s ability to uptake oxygen to the cells in your body.

The way to combat this kind of poisoning is through getting IVs from the vet or doctor. It is important to contact your medical professional immediately since the symptoms can be fatal within minutes or hours.

Rhododendrons

Rhododendrons
Rhododendron, the state flower of Washington, is also toxic. The multitudinous, pink flowers can be quite dangerous. All parts of this plant are toxic, the leaves and seeds more so than the flowers. However, even the nectar of the flower is toxic and in the Mediterranean, where rhododendrons grow in more dense quantities, the honey from bees who gather rhododendron nectar can be poisonous.

Normally kids and pets do not eat enough to experience the full poisoning effect. However, just eating two leaves is enough to be considered dangerous. The grayanotoxin glycosides within the rhododendron can cause vomiting, diarrhea and irregular heartbeats. Things can get very serious when too much rhododendron is consumed and can lead to necessary medical intervention.

Start by calling poison control first if you suspect anyone has been munching on rhododendrons. The experts there will be able to help guide you through the necessary processes to cure your loved one.

Rhubarb

Rhubarb
Yummy rhubarb has a nasty side to it. While the stems are used in many recipes, including for rhubarb strawberry pie, the leaves are toxic. They contain oxalic acid which is known to blister the mouth, cause nausea, vomiting, diarrhea and kidney stones. The leaves are known to be more toxic to pets than humans, but in either case, it is important to contact poison control immediately to figure out necessary steps to cure the patient.
Common Toxic Weeds in the Yard
Common Toxic Weeds in the Yard

Bittersweet Nightshade

Bittersweet Nightshade
Nightshade is an invasive, noxious weed that is extremely poisonous. It has been found along the East and West Coast of the U.S. It makes its home in areas with disturbed soil. This could be near your garden or areas that have recently had bushes/trees put in.

These plants are dark green with purple flowers that develop into bright red berries. The whole plant is toxic and should be avoided by pets and children alike. If ingested it can cause nausea, vomiting, and diarrhea. The colorful berries are especially enticing to young children. If you see any plants that look similar to tomato or pepper plants that you did not plant in your yard, it is best to just pull them immediately.

Call poison control immediately if you think someone has fallen victim to nightshade.

Buttercups

Buttercups
Buttercups are found throughout the United States, especially in wet areas. The shiny, yellow flowers will pop up in the springtime, accompanying their dandelion friends. However, unlike dandelions, buttercups are not edible.

Buttercups will release a compound called protoanemonin. This toxin is known to cause vomiting, diarrhea, bloody stool, hypersalivation, depression, blisters, and more. These symptoms will affect both humans and animals. The sap may also cause irritation when it comes into contact with skin. These yellow flowers are dangerous and children should be observed cautiously when around them.

Foxgloves

Foxgloves
Foxgloves are beautiful plants that build towers out of vivid purple bell-shaped blossoms. They are very pretty to look at, but they contain a compound known as digoxin. This chemical is used in certain medicines to help people with certain heart conditions. However, the medicine is made by specialists, whereas someone eating foxgloves will receive unregulated amounts of the chemical.

This toxin can make you vomit and lower your heartbeat. This often causes dizziness and faintness. It is extremely important to call poison control immediately to know what to do in the case of foxglove poisoning. Some people have confused the young leaves of foxglove with borage, making adult foragers at risk as well as kids and pets.
How to Tend to or Get Rid of Toxic Plants
How to Tend to or Get Rid of Toxic Plants
Now that you know where to start with toxic plant identification, let us discuss how to either tend to the poisonous plants you decide to keep or get rid of them that plague your yard.

How to Tend to Poisonous Plants

Many plants that are toxic when ingested are also skin irritants. The philodendron is a good example of this. When the sap comes into contact with skin, it can cause a rash to form. To help protect yourself when tending to toxic plants, it is important to wear some sort of gloves.
Tend
Latex gloves may be the best solution due to their disposability. Regular gloves could potentially keep the poisonous sap on their surface. If the gloves aren’t cleaned then you could accidentally touch the irritant or pass it to someone else.

In addition you will want to plan where to keep your deadly beauties. If you have a toxic indoor plant try to keep it up high or out of reach of children and pets. This will keep accidents few and far between. Another idea is keeping your plants in areas that are usually inaccessible to children or pets. Areas such as an office, study room, or guest bedroom could be good locations. If applicable, you could also set up a terrarium for your little plant baby, making it more difficult for curious hands or paws to access.
tend2
If you plan to have outdoor plants, location will be key. You will want to put plants in an area that will be inaccessible to children, pets and even wild animals. You will probably want to avoid planting the plants in the front of your house if kids walk by on a regular basis, just to be cautious. Having the plants behind a fence will be best, but use your discretion when choosing a spot.

How to Get Rid of Poisonous Plants

plants
The easiest but possibly most controversial way to get rid of poisonous plants is by using herbicides. This can be especially easy if you own a grass lawn and use an herbicide that targets broadleaf (non-grass) species. You can find many herbicides meant for yard use by simply searching the term online. Once you have purchased the herbicide you will want to make sure to follow the label posted on the container. If you follow the instructions precisely, then everything should run smoothly for you.

If you don’t plan on using herbicides, there are a few organic methods you can use to try to get rid of toxic plants. You can manually pull the plants out of the ground. This is probably one of the most difficult methods because there is no assurance that you will get the whole plant out this way.

You can also try pouring boiling hot water or spraying white vinegar on the target plants. This may take more time than using a synthetic herbicide, but you can feel a little better about using these products.

You can also try to use wood chips to cover a certain area where you do not want anything to grow. This will not stop all the weeds, but the few that make it through can be easily picked by hand.
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distribution

Distribution of Evergreen azalea

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Habitat of Evergreen azalea

Rocks in ravines
Northern Hemisphere
South Hemisphere

Distribution Map of Evergreen azalea

distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
care_scenes

More Info on Evergreen Azalea Growth and Care

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Basic Care Guide
Common Pests & Diseases
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Leaf rot
Leaf rot
Leaf rot is a destructive disease primarily caused by fungus, affecting Rhododendron indicum. It greatly impacts the plant's health by decaying its leaves and limiting its ability to absorb nutrients, eventually reducing its growth and causing death if left untreated.
 detail
Leaf blight
Leaf blight
Leaf Blight is a plant disease that drastically affects the health of Evergreen azalea. This fungal ailment leads to visible symptoms such as leaf damage, including brown or yellow discolorations, and it can significantly reduce the plant's overall vitality.
 detail
Lace bugs
Lace bugs
Lace bugs are sap-feeding insects notorious for damaging the aesthetics of Evergreen azalea due to the stippling and bronzing of leaves. The leaves eventually turn brown and fall off, affecting plant vigor and vitality.
 detail
Brown blotch
Brown blotch
Brown spot is a common disease affecting Evergreen azalea that manifests as small, dark spots on the leaves and stems, often leading to yellowing or dropping off of infected leaves. It's caused by the fungus Septoria rhododendri and can significantly hamper plant growth and vitality.
 detail
flower wilting
flower wilting
Wilting in Evergreen azalea is a dangerous condition often causing lethargy, yellowing leaves, and eventually plant death. The disease can be managed effectively if detected and treated early.
 detail
Yellow edges
Yellow edges is a fairly common disease affecting Evergreen azalea, leading to reduced health and productivity. The disease displays clear signs of infection such as yellow edgings on the leaves, often leading to defoliation and in severe cases, death of the plant.
 detail
Dark blotch
Dark blotch is a damaging fungal disease affecting Evergreen azalea, causing unsightly dark spots on leaves. If left untreated, it can compromise the plant's health, degrade its aesthetic appeal, and potentially lead to plant death.
 detail
plant_info

Plants Related to Evergreen azalea

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Water
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Evergreen Azalea Watering Instructions
Evergreen azalea originates from the warm, humid regions of Japan, an environment characterised by ample rainfall. This translates to a preference for consistent, yet moderate watering. Overwatering can be as harmful as underwatering; hence, the humidity and rainfall patterns of its native climate provide useful guidance. Striking a balance between soil moisture and good drainage, akin to its native habitat, enhances the growth and overall health of evergreen azalea.
When Should I Water My Evergreen Azalea?
Introduction
Proper and timely watering plays a crucial role in maintaining the overall health and development of the evergreen azalea. It contributes to its optimal growth, vibrant flower production, and resistance against diseases. Therefore, understanding the appropriate signals indicating when the plant should be watered is essential.
Soil Dryness
A clear sign of when evergreen azalea needs water is the dryness of the soil. This can be checked by touching the soil around the plant base. If the top 1 to 2 inches of soil is dry to the touch, this means the plant most likely requires watering.
Leaf Condition
The condition of the leaves of evergreen azalea can also be a reliable indicator for watering necessities. If the leaves appear wilted, lackluster, or begin to lose their vibrant color tending to fade or yellow, these are indicative of the plant being under-watered.
Pre-Flowering Stage
Evergreen azalea particularly requires watering during its pre-flowering or bud formation stage. A lack of water during this critical period may result in bud drop, preventing the plant from flowering fully.
Temperature And Sunlight Exposure
Evergreen azalea has a high water requirement during warm temperatures and high sunlight exposure periods. Therefore, one must ensure to observe proper watering if these conditions are persistent.
Early Watering Risks
Watering evergreen azalea too early, when the soil is still moist, could risk root rot, fungus infestation, and other root diseases due to over-watering.
Late Watering Risks
Watering evergreen azalea too late, when it has been excessively dry for an extended period, could risk temporary wilting and might stunt the plant's growth. In extreme conditions, it can lead to plant death due to dehydration.
Conclusion
Understanding these signs is critical to effectively manage the watering schedule for the evergreen azalea. Proper water management not only encourages its growth and flowering but also prolongs its life span and maintains plant health.
How Should I Water My Evergreen Azalea?
Watering Requirements
Evergreen azalea has specific watering needs and sensitivities that should be considered for optimal hydration. It prefers consistently moist but well-draining soil.
Watering Technique
A suitable method for watering evergreen azalea is to use a watering can with a narrow spout to direct the water at the base of the plant. This helps avoid wetting the foliage excessively and promotes targeted hydration at the root level. It is important to water slowly and evenly, allowing the water to soak deep into the soil.
Bottom-watering
Another effective technique for watering evergreen azalea is bottom-watering. This involves placing the plant pot in a tray or saucer filled with water and allowing the roots to absorb water from the bottom up. It prevents excess moisture on the foliage and minimizes the risk of fungal diseases.
Moisture Meter
Using a moisture meter can be beneficial for evergreen azalea. It helps determine if the soil has dried out sufficiently before watering again, as overwatering can be detrimental to the plant.
Avoid Wetting Foliage
When watering evergreen azalea, it is essential to avoid wetting the foliage as much as possible. Excessive moisture on the leaves can lead to rot and fungal diseases.
Water Quality
Watering evergreen azalea with room temperature, non-chlorinated water is advisable. Avoid using water high in salts or minerals, as they can harm the plant over time.
Avoid Overwatering
While evergreen azalea prefers consistently moist soil, overwatering can be detrimental. It is important to monitor the moisture level of the soil and only water when the top inch feels slightly dry.
Drying Period
Allowing the soil to dry slightly between waterings is beneficial for evergreen azalea, as it helps prevent root rot and allows for proper oxygen flow to the roots.
Outdoor Considerations
If evergreen azalea is planted outdoors, the watering needs will vary depending on factors such as temperature, humidity, and rainfall. It is important to adjust the watering frequency accordingly.
Indoor Considerations
When growing evergreen azalea indoors, it is essential to provide adequate humidity to mimic its natural environment. Placing a tray with water and pebbles near the plant can help elevate the humidity levels.
Avoid Waterlogged Soil
Ensuring proper drainage is crucial for evergreen azalea. Waterlogged soil can lead to root rot and other issues. If the plant is kept in a container, make sure it has drainage holes to allow excess water to escape.
How Much Water Does Evergreen Azalea Really Need?
Introduction
Native to Japan, 'Rhododendron indicum' or 'evergreen azalea' naturally flourishes in a moderately wet habitat. However, due to the plant's adaptability, it can also grow in relatively dry regions provided it receives adequate water.
Water Quantity
The optimal water quantity for evergreen azalea's varies depending on several factors. For a healthy and robust growth, evergreen azalea in a standard-sized pot requires a thorough soak ensuring the water reaches the bottom of the pot. Small pot sizes would require less water, while larger pots could necessitate more. The size and depth of its root system also influence the ideal amount of water. As a rule of thumb, the deeper the roots, the more water evergreen azalea may require.
Signs and Conditions
Certain conditions and signs indicate whether evergreen azalea has been adequately watered. When watered optimally, evergreen azalea's leaves will appear vibrant and its growth will be robust. On the contrary, underwatered evergreen azalea exhibits wilting leaves, while overwatering can lead to discoloration or leaf drop. A healthy balance involves maintaining the soil moisture without waterlogging it.
Implications
Both overwatering and underwatering evergreen azalea pose a risk to its health. In an overly dry condition, evergreen azalea may experience wilting or slow growth. However, overwatering places evergreen azalea at risk of root decay due to waterlogged soil and could lead to a fatal loss of the plant.
How Often Should I Water Evergreen Azalea?
Every 1-2 weeks
Watering Frequency
Smart Seasonal Watering
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Just like people, each plant has its own preferences and needs. Devote time to understanding your plants so you can nurture them properly. Observe your plants attentively, learning from their growth patterns, and becoming more in tune with their needs as you grow together. Keep a watchful eye on new plants and seedlings, as they are sensitive to both overwatering and underwatering. Shower them with gentle love and attention, fostering their growth and strength. Let the rhythm of your local climate guide your watering habits, adapting your schedule to the changing weather and the needs of your plants.
What Kind of Water is Best for Evergreen Azalea?
Water Type Guide for evergreen azalea
Water Sensitivity: Moderate - evergreen azalea prefers moist, well-drained soil and should not be overly saturated with water.
Water Types
Distilled Water: Ideal for evergreen azalea as it is pure and free from any contaminants or minerals. Rainwater: Best suited for evergreen azalea as it is natural, free of chemicals, and has a balanced pH level. Filtered Water: A suitable alternative to distilled or rainwater, as long as it removes any harmful contaminants. Tap Water: Can be used for evergreen azalea as long as it is free from chlorine and other harmful elements.
Chlorine Sensitivity
High - evergreen azalea is sensitive to chlorine in tap water, which can cause leaf burn and overall stress to the plant.
Fluoride Sensitivity
Moderate - evergreen azalea can tolerate low levels of fluoride, but high concentrations can be detrimental to its health.
Water Treatments
Dechlorination: It is recommended to let tap water sit out for at least 24 hours before using it on evergreen azalea. This allows the chlorine to evaporate and makes it safer for the plant. Filtration: If using tap water, it is advisable to use a water filter to remove chlorine and other harmful elements.
Water Temperature Preferences
Moderate - evergreen azalea generally prefers water at room temperature (around 68-72°F or 20-22°C). Avoid using water that is too cold or too hot, as extreme temperatures can shock the plant.
How Do Evergreen Azalea's Watering Needs Change with the Seasons?
How to Water evergreen azalea in Spring?
Spring is the primary growth period for evergreen azalea. As such, regular watering is necessary to support their lush growth. However, it's essential to maintain damp, not soaked soil. Drainage is crucial, so ensure potted evergreen azalea have sufficient drain holes. Spring rains might be able to suffice, but during drier spells, it's important to provide additional water.
How to Water evergreen azalea in Summer?
During the hot and often dry summer, it's crucial to ensure that evergreen azalea stays hydrated. These plants do not tolerate drought, causing them to wilt rapidly. Morning watering is best, allowing moisture to reach the roots before the heat of the day evaporates it. Increased watering is usually needed, but be watchful not to overwater and risk root rot.
How to Water evergreen azalea in Autumn?
As evergreen azalea begin to prepare for dormancy, it's important to slowly scale back the watering frequency. A good rule of thumb is to monitor the soil; when the top inch feels dry, it's time to water, focusing on keeping the root zone moist, not wet. Be sure to clear fallen leaves and debris that might impede water drainage.
How to Water evergreen azalea in Winter?
Winter care for evergreen azalea is primarily about protection. While they are dormant and their watering needs are diminished, never allow them to dry out completely. Water lightly but infrequently, especially during particularly dry winters. It is also wise to ensure the plant's protection from freezing temperatures and winds which can dry out the plant.
What Expert Tips Can Enhance Evergreen Azalea Watering Routine?
Watering Tools
Using a watering wand or soaker hose can provide a gentle and even distribution of water to the roots of evergreen azalea. This helps prevent water runoff and allows for better absorption.
Morning Watering
Water evergreen azalea early in the morning to allow the foliage to dry quickly. This reduces the risk of fungal diseases and increases the effectiveness of watering.
Mulching
Apply a layer of organic mulch around the base of evergreen azalea to help retain soil moisture. This can reduce the frequency of watering and provide insulation to the roots.
Deep Watering
When watering evergreen azalea, aim for a slow and deep watering session. This encourages the roots to grow deeper and strengthens the overall plant. Avoid shallow watering as it promotes shallow root growth and increases susceptibility to drought.
Moisture Meter
Using a moisture meter can help assess evergreen azalea's deeper soil moisture needs and prevent over or under-watering. This plant prefers its soil to be mostly dry before the next watering, and a meter can effectively measure this.
Avoid Over-watering
One common mistake is over-watering evergreen azalea due to its preference for moist soil. However, constantly wet soil leads to root rot and other diseases. Allow the top inch of soil to dry before watering again.
Watch for Wilting
If you notice wilting leaves or drooping branches, it may indicate underwatering. Increase the frequency and amount of watering, ensuring the entire root zone receives adequate moisture.
Signs of Over-watering
Yellowing leaves, root rot, and a foul smell from the soil are signs of over-watering evergreen azalea. Reduce watering immediately and allow the soil to dry out before watering again.
Watering during Heatwaves
During periods of high temperature, evergreen azalea may require more frequent watering. Monitor soil moisture levels closely and adjust watering accordingly to prevent dehydration.
Watering during Extended Rain
During extended periods of rain, it is crucial to ensure proper drainage for evergreen azalea. Avoid waterlogged soil by creating a slightly elevated planting area or using well-draining soil.
Watering Stressed Plants
When evergreen azalea is showing signs of stress, such as wilting or yellowing leaves, provide extra water to revive it. Gradually increase watering and ensure the entire root zone is sufficiently moistened.
Avoid Wetting the Foliage
When watering evergreen azalea, direct the water towards the base of the plant to avoid wetting the foliage. Wet leaves can lead to fungal diseases and pest infestations.
Monitor Rainfall
Regularly check the weather forecast and monitor rainfall amounts. Adjust your watering schedule accordingly to avoid over-watering evergreen azalea when sufficient natural rainfall occurs.
Considering Hydroponics? How to Manage a Water-Grown Evergreen Azalea?
Hydroponics and its relevance to evergreen azalea
Hydroponics is a method of growing plants without soil, providing a water-based environment for plant roots to access nutrients. This method can be beneficial for evergreen azalea as it allows for precise control over nutrient uptake, eliminates the risk of soil-borne diseases, and promotes faster growth and higher yields.
Recommended hydroponic system for evergreen azalea
The nutrient film technique (NFT) is best suited for growing evergreen azalea hydroponically. This system involves a thin film of nutrient solution continuously flowing over the plant roots, ensuring they have access to water and nutrients while remaining oxygenated.
Nutrient solution requirements for evergreen azalea
The optimal nutrient solution for evergreen azalea should be balanced and have a pH level between 5.5 and 6.5. The recommended concentrations of macronutrients are: nitrogen (N) - 200-250 ppm, phosphorus (P) - 80-100 ppm, and potassium (K) - 250-300 ppm. Additionally, provide adequate amounts of calcium (Ca), magnesium (Mg), and micronutrients like iron (Fe), manganese (Mn), zinc (Zn), and boron (B) to promote healthy growth.
Challenges and common issues in hydroponic cultivation of evergreen azalea
Some common challenges in growing evergreen azalea hydroponically include root rot caused by overwatering, nutrient imbalances leading to deficiencies or toxicities, and providing sufficient light for optimal growth. It's essential to maintain proper water and nutrient levels and closely monitor the plant's health to address issues promptly.
Monitoring evergreen azalea's health in a hydroponic setup
In a hydroponic system, monitor the plant's overall health by observing its foliage and root system. Signs of stress in evergreen azalea can manifest as yellowing or browning of leaves, stunted growth, wilting, or root discoloration. Regularly check the pH and nutrient levels of the solution to ensure they are within the optimal range.
Adjusting the hydroponic environment for evergreen azalea's growth stages
During the vegetative stage, evergreen azalea requires more nitrogen for leaf development. As it transitions to the flowering stage, increase the phosphorus and potassium levels to support flower formation. Additionally, adjust lighting duration and intensity based on the plant's growth stage, providing longer light hours during the vegetative phase and reducing it slightly during flowering.
Nutrient Solution
Evergreen azalea prefers a balanced nutrient solution with a pH of 5.8-6.2 for optimal growth.
Hydroponic System
The nutrient film technique (NFT) is the recommended hydroponic system for evergreen azalea due to its continuous flow of nutrient solution over the roots.
Light Requirements
Evergreen azalea requires approximately 12-16 hours of light per day. Using full spectrum LED grow lights is advantageous as it provides the necessary light intensity without generating excessive heat.
Common Issues
Root rot can be a common issue for evergreen azalea in a hydroponic setup. To prevent this, ensure proper oxygenation of the nutrient solution and avoid overwatering. Additionally, monitor the pH and nutrient levels regularly to prevent imbalances.
Monitoring Signs of Stress
Signs of stress in evergreen azalea can include yellowing or browning of leaves, stunted growth, wilting, or root discoloration. Regularly check the pH and nutrient levels to address any imbalances.
Important Symptoms
Overwatering Symptoms of Evergreen azalea
Evergreen azalea is more susceptible to developing disease symptoms when overwatered because it prefers a soil environment with moderate humidity. Symptoms of overwatering include yellowing leaves, root rot, leaf drop...
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(Symptom details and solutions)
Yellowing leaves
When plants receive too much water, the roots become oxygen deprived and the bottom leaves of the plant gradually turn yellow.
Root rot
Excess water in the soil can lead to the growth of harmful fungi and bacteria, causing the roots to rot and eventually kill the plant.
Leaf drop
When plants are overwatered, they may shed their leaves as a response to stress, even if the leaves appear green and healthy.
Mold and mildew
Overwatered plants create a damp environment that can encourage the growth of mold and mildew on soil.
Increased susceptibility diseases
Overwatering plants may become more susceptible and diseases as their overall health declines, weakening their natural defenses.
Solutions
1. Adjust watering frequency based on seasons and soil dryness. Wait for soil to dry before watering.2. Increase soil aeration by loosening surface and gently stirring with a wooden stick or chopstick.3. Optimize environment with good ventilation and warmth to enhance water evaporation and prevent overwatering.
Underwatering Symptoms of Evergreen azalea
Evergreen azalea is more susceptible to plant health issues when lacking watering, as it can only tolerate short periods of drought. Symptoms of dehydration include wilting, yellowing leaves, leaf drop...
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(Symptom details and solutions)
Wilting
Due to the dry soil and insufficient water absorption by the roots, the leaves of the plant will appear limp, droopy, and lose vitality.
Root damage
Prolonged underwatering can cause root damage, making it difficult for the plant to absorb water even when it is available.
Dry stems
Due to insufficient water, plant stems may become dry or brittle, making the branches easy to break.
Dying plant
If underwatering continues for an extended period, the plant may ultimately die as a result of severe water stress and an inability to carry out essential functions.
Solutions
1. Thoroughly saturate soil with slow ring watering to ensure uniform and sufficient moisture for plants. 2. Increase air humidity with water trays or misting to slow leaf water evaporation. 3. Watering according to the recommended frequency.Adjust watering frequency based on seasons and soil dryness.
Watering Troubleshooting for Evergreen Azalea
Why are the leaves on my evergreen azalea turning yellow?
Yellowing leaves on your evergreen azalea could be a sign of overwatering or poor drainage. This plant prefers well-drained soil and can suffer from root rot if it is left in standing water. To solve this problem, adjust your watering schedule to allow the soil to dry out between watering sessions. If the problem persists, consider repotting your plant in a pot with better drainage.
Why are the leaves on my evergreen azalea wilting or turning brown?
Wilting or browning leaves on your evergreen azalea could be an indication of underwatering. Azaleas require consistent moisture but their roots should never be left soaking in water. Check the soil for dryness and adjust your watering schedule accordingly. Make sure to water more often during hot or dry periods.
Are there any specific watering requirements for my evergreen azalea during different seasons?
Evergreen azalea requires more frequent watering during the growing season (usually spring and early summer), but less watering in the autumn and winter when the plant is dormant. Adjust your watering schedule according to the plant's needs and weather conditions, always checking the soil before watering.
Can tap water be used for watering my evergreen azalea?
Yes, tap water can be used for your evergreen azalea, but ensure it is at room temperature. However, avoid water with high chlorine levels as it could harm the plant. If your tap water is heavily chlorinated, let it stand overnight before watering to allow the chlorine to evaporate.
Is there a specific time of day that's best for watering my evergreen azalea?
The best time to water your evergreen azalea is in the early morning, allowing the water to soak in before the heat of the day. This gives the plant plenty of moisture to face the day's heat and reduces the risk of fungal diseases, which can be exacerbated by evening watering.
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Lighting
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Outdoor
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Requirements
Partial sun
Ideal
About 3-6 hours sunlight
Full sun
Tolerance
Above 6 hours sunlight
Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.
Essentials
Evergreen azalea prefers areas where the sun filters through for most of the day, although it is able to sustain under more intense luminosity. Excessive radiation may lead to leaf burn, while inadequate light can hinder its growth. Being originally from canopied forests, it's familiar with such photic conditions.
Preferred
Tolerable
Unsuitable
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Artificial lighting
Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
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Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.
Important Symptoms
Symptoms of Insufficient Light in %s
Evergreen azalea is a versatile plant that thrives in full sunlight but can tolerate partial shade. While it can adapt to different light conditions, when grown indoors with insufficient light, subtle symptoms of light deficiency may arise.
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Small leaves
New leaves may grow smaller in size compared to the previous ones once they have matured.
Leggy or sparse growth
The spaces between leaves or stems of your evergreen azalea may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.
Faster leaf drop
When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.
Slower or no new growth
Evergreen azalea enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.
Lighter-colored new leaves
Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.
Solutions
1. To optimize plant growth, shift them to increasingly sunnier spots each week until they receive 3-6 hours of direct sunlight daily, enabling gradual adaptation to changing light conditions.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.
Symptoms of Excessive light in %s
Evergreen azalea thrives in full sun exposure but can adapt to partial shade. Although sunburn symptoms occur occasionally, they are generally tolerant of different light conditions due to their resilience.
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Chlorosis
Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.
Sunscald
Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.
Leaf Curling
Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.
Wilting
Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.
Leaf Scorching
Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.
Solutions
1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.
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Temperature
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Requirements
Ideal
Tolerable
Unsuitable
Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care.
Essentials
Evergreen azalea is a native of warm climates, and requires temperatures between 5 to 35 ℃ (41 to 95 ℉). During the winter months, it is recommended to keep the plant in a cooler location, around 5 to 10 ℃ (41 to 50 ℉) to promote flowering in the spring.
Regional wintering strategies
Evergreen azalea has strong cold resistance, so special frost protection measures are usually not necessary during winter. However, if the winter temperatures are expected to drop below {Limit_growth_temperature}, it is still important to provide cold protection. This can be achieved by wrapping the trunk and branches with materials such as non-woven fabric or cloth. Before the first freeze in autumn, it is recommended to water the plant abundantly, ensuring the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.
Important Symptoms
Symptoms of Low Temperature in Evergreen azalea
Evergreen azalea is cold-tolerant and thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, although there may not be any noticeable changes during winter, the branches may become brittle and dry during springtime, and no new shoots will emerge.
Solutions
In spring, prune away any dead branches that have failed to produce new leaves.
Symptoms of High Temperature in Evergreen azalea
During summer, Evergreen azalea should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the leaves of the plant may become lighter in color, the tips may become dry and withered, and the plant becomes more susceptible to sunburn.
Solutions
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.
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Toxic
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The Toxicity of Evergreen azalea
Moderate Toxic to Humans
Human
Leaves
Toxic parts
Eaten
Effect methods
Is Evergreen Azalea toxic to dog?
All varieties of evergreen azalea (Rhododendron indicum) are incredibly toxic to dogs, and just a small amount can be lethal. All parts of the plant are toxic and ingestion can first cause vomiting and excessive salivation, leading to weakness, vision loss, and possibly death. If you suspect your dog has consumed even a few leaves, prompt veterinary treatment is needed.
Is Evergreen Azalea toxic to cat?
Evergreen azalea poisoning can be an immediate medical emergency for cats. The leaves, twigs, and flowers of the Rhododendron indicum plant contain hazardous grayanotoxins. The first signs of poisoning appear several hours after ingestion and they include excessive salivation, vomiting, diarrhea, bloat, and colic, followed by coma, heart failure, or death.
How to identify Evergreen Azalea
* The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.
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