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Shield aralia
Shield aralia
Shield aralia
Shield aralia
Shield aralia
Shield aralia
Shield aralia
Polyscias scutellaria
Also known as : Plum aralia, Milkwort
Shield aralia is a many-branched small tree or evergreen shrub that can grow from 1 to 6 m tall. It is often grown as a hedge plant or an ornamental because it has showy foliage. The plants’ leaves are sometimes used as plates in some countries.
Hardiness Zones
Hardiness Zones
11 to 12
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care guide

Care Guide for Shield aralia

Soil Care
Soil Care
Loam, Moderately alkaline
Details on Soil Care Soil Care
Ideal Lighting
Ideal Lighting
Full sun, Partial sun
Details on Sunlight Requirements Ideal Lighting
Ideal Temperature
Ideal Temperature
11 to 12
Details on Temperature Ideal Temperature
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Shield aralia
Water
Water
Every 1-2 weeks
Hardiness Zones
Hardiness Zones
11 to 12
question

Questions About Shield aralia

Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What is the best way to water my Shield aralia?
Your Shield aralia 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 Shield aralia. 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 Shield aralia. However, the Shield aralia usually responds well to any kind of water you give it.
Read More more
What should I do if I water my Shield aralia 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, Shield aralia can rely on rain most of the time.
When your Shield aralia is planted in pots, overwatering is often more likely to.When you accidentally overwater your Shield aralia, 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 Shield aralia 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 Shield aralia in soil that is well-draining. In the case of an underwatered Shield aralia, 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 Shield aralia?
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 Shield aralia 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 Shield aralia. 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 Shield aralia .
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.
Read More more
How much water does my Shield aralia need?
When it comes time to water your Shield aralia, 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 Shield aralia 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 Shield aralia 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 Shield aralia is planted in an area that gets plenty of rain outdoors, it may not need additional watering. When the Shield aralia 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 Shield aralia a full watering to prevent them from suffering stress.
Read More more
How can I tell if i'm watering my Shield aralia enough?
Overwatering is a far more common problem for the Shield aralia, and there are several signs you should look for when this occurs. Generally, an overwatered Shield aralia 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 Shield aralia 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 Shield aralia.
Read More more
How can I water my Shield aralia at different growth stages?
When the Shield aralia 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 Shield aralia that you have transplanted to a new growing location. Also, the Shield aralia can develop showy flowers and fruits when you give them the correct care. If your Shield aralia 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.
Read More more
How can I water my Shield aralia through the seasons?
The seasonal changes will affect how often you water your Shield aralia. 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 Shield aralia 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.
Read More more
What's the difference between watering my Shield aralia indoors vs outdoors?
In some cases, your Shield aralia 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.
Read More more
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Key Facts About Shield aralia

Attributes of Shield aralia

Lifespan
Perennial
Plant Type
Shrub
Bloom Time
Summer
Plant Height
6 m
Spread
4 m
Leaf Color
Green
Yellow
White
Variegated
Flower Size
2.5 cm
Flower Color
Green
White
Dormancy
Non-dormant
Leaf type
Evergreen
Ideal Temperature
20 - 38 ℃

Scientific Classification of Shield aralia

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pests

Common Pests & Diseases About Shield aralia

Common issues for Shield aralia based on 10 million real cases
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.
Aged yellow and dry
Aged yellow and dry Aged yellow and dry
Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Solutions: If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Scars
Scars Scars
Scars
Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.
Solutions: Each source of scarring requires a different approach to help your plant recover. Protect the trunk and leaves from physical damage like scrapes. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs. Frequent leaf or bud loss may be due to insufficient light or nutrients.
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Brown spot
plant poor
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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Aged yellow and dry
plant poor
Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Overview
Overview
Regardless of the type of plant or where it is grown, at some point, it will begin to aged yellow and dry. This is a natural, unavoidable process that happens when the plant has completed all of the steps in its life.
Annual plants go through this process at the end of a single growing season. Perennial plants live for multiple years, if not tens or hundreds of years, but will still ultimately exhibit these symptoms.
Symptom Analysis
Symptom Analysis
When plants have progressed through their natural developmental stages and are nearing the end of their lifecycle, they begin showing signs of decline. Leaves will start to yellow and droop, and over time they turn papery brown and dry.
Once completely dry, the leaves begin to fall from the plant until the entire plant has dried out.
Disease Cause
Disease Cause
At the end of its life, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence or natural aging and death. Cell division stops, and the plant begins catabolizing resources to use in other parts of the plant.
As this happens, the tissues begin yellow and drying until the entire plant is desiccated and perishes.
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Scars
plant poor
Scars
Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.
Symptom Analysis
Symptom Analysis
Scars form when the plant repairs wounds. They can be the result of people or pets passing by and scraping the plant. Once the underlying issue is resolved, the plant will heal but a scar may remain.
Pests and pathogens can also cause scarring. Insects may attack the plant for a meal, resulting in extensive scarring when a few invaders turn into an infestation. Diseases such as fungus and bacteria can weaken the plant, causing brown spots, mushy areas, or blisters that lead to scars.
Scars occur on stems when a leaf or bud has been lost and the plant has healed. The harder tissue is like a scab that protects a wound.
On other occasions, scars can signal problems from environmental conditions, such as overexposure to sunlight or heat. It might surprise you to know that plants can suffer from sunburn, even desert dwellers like cactus!
Solutions
Solutions
Each source of scarring requires a different approach to help your plant recover.
  1. Protect the trunk and leaves from physical damage like scrapes.
  2. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray.
  3. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs.
  4. Frequent leaf or bud loss may be due to insufficient light or nutrients.
Prevention
Prevention
Preventing some sources of scarring is easier than others, but all start with careful attention to your plants once you decide to bring them home.
  1. Review specific guidelines for your plant, including soil drainage, watering, and fertilizer requirements.
  2. Inspect plants before planting and use sterile pots and fresh potting soil or media to limit transfer of fungi or bacteria.
  3. Once established, check your plants regularly for signs of scarring or the presence of pests, as it is better to catch problems as early as possible.
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distribution

Distribution of Shield aralia

Habitat of Shield aralia

Gardens

Distribution Map of Shield aralia

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

More Info on Shield Aralia Growth and Care

Basic Care Guide
Explore More
Lighting
Full sun
Shield aralia craves abundant light exposure for optimal growth, yet moderate light levels are bearable. Originating from a habitat that receives intense solar radiation, flourishing growth can be seen in settings with more sun. Insufficient light may hamper its growth, while excessive exposure can lead to leaf burn.
Best Sunlight Practices
Temperature
10 - 43 ℃
Shield aralia is native to environments with variable temperatures, best thriving between 68 to 100.4 °F (20 to 38 ℃). In cooler temperatures, it is recommended to bring shield aralia indoors or provide it with a warmer microclimate.
Temp for Healthy Growth
Transplant
2-3 feet
Transplanting shield aralia is best undertaken during the S1-S2 season, as this period offers optimal development conditions. Shield aralia requires a well-lit, warm location for successful transplantation. Remember, excess water can lead to root rot, so ensure well-drained soil for healthy growth.
Transplant Techniques
Feng shui direction
East
The shield aralia is generally considered harmonious in Feng Shui, particularly when facing East. This direction is associated with the wood element, resonating with the plant's natural characteristics. However, individual circumstances and interpretations may affect this compatibility.
Fengshui Details
other_plant

Plants Related to Shield aralia

Swamp loosestrife
Swamp loosestrife
Swamp loosestrife is found in wet and swampy soils all around eastern North America. It can spread rapidly through wet areas and even forms floating mats on still water. Swamp loosestrife flowers are frequented by swallowtail butterflies, bees, and other insects. Ducks, meanwhile, like to feed on the seeds.
St. Catherine's lace
St. Catherine's lace
St. Catherine's lace (Eriogonum giganteum) is indigenous to the Channel Islands of California. Other names for it include giant buckwheat and lace buckwheat. It’ll look spectacular as a background plant. Grow it in full to partial sun. You’ll probably only have to water it monthly because it has minimal water needs.
Softstem bulrush
Softstem bulrush
The softstem bulrush (Schoenoplectus tabernaemontani) is a sedge found in or near water in many places around the world. It provides nesting cover for waterbirds and food for muskrats. It is useful for erosion control and habitat restoration. Indigenous tribes wove the leaves and stalks into bags and fine mats.
Sinicuichi
Sinicuichi
Sinicuichi is a perennial shrub distinguished by its slender, often upright stems and narrow, lance-shaped leaves. Its golden-yellow flowers, which blossom in warm seasons, are notable for their delicate, crepe-paper-like texture. Thriving in moist, sunny environments, sinicuichi has a resilience that allows it to adapt to varying water levels, making it a steadfast presence in its native habitat.
Silver ribbon fern
Silver ribbon fern
Silver ribbon fern (Pteris parkeri) is a species of fern that is native to many parts of eastern Asia. It is often cultivated as a house plant for its foliage. The plant produces many long leaves that are silvery in color and have a crinkly or ribbon-like appearance. As with most ferns, it grows best in partial shade and strong, but indirect light.
Silver bush
Silver bush
Silver bush (Convolvulus cneorum) is an unusual, evergreen shrub. It is native to the Mediterranean, where it grows on limestone hills. It's also sometimes used as an ornamental garden plant for its prolific flowering and silvery foliage.
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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About
Care Guide
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Pests & Diseases
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Related Plants
Shield aralia
Shield aralia
Shield aralia
Shield aralia
Shield aralia
Shield aralia
Shield aralia
Polyscias scutellaria
Also known as: Plum aralia, Milkwort
Shield aralia is a many-branched small tree or evergreen shrub that can grow from 1 to 6 m tall. It is often grown as a hedge plant or an ornamental because it has showy foliage. The plants’ leaves are sometimes used as plates in some countries.
Hardiness Zones
Hardiness Zones
11 to 12
more
care guide

Care Guide for Shield aralia

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Questions About Shield aralia

Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What is the best way to water my Shield aralia?
more
What should I do if I water my Shield aralia too much or too little?
more
How often should I water my Shield aralia?
more
How much water does my Shield aralia need?
more
How can I tell if i'm watering my Shield aralia enough?
more
How can I water my Shield aralia at different growth stages?
more
How can I water my Shield aralia through the seasons?
more
What's the difference between watering my Shield aralia indoors vs outdoors?
more
icon
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Keep your plants happy and healthy with our guide to watering, lighting, feeding and more.
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close
plant_info

Key Facts About Shield aralia

Attributes of Shield aralia

Lifespan
Perennial
Plant Type
Shrub
Bloom Time
Summer
Plant Height
6 m
Spread
4 m
Leaf Color
Green
Yellow
White
Variegated
Flower Size
2.5 cm
Flower Color
Green
White
Dormancy
Non-dormant
Leaf type
Evergreen
Ideal Temperature
20 - 38 ℃
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Scientific Classification of Shield aralia

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pests

Common Pests & Diseases About Shield aralia

Common issues for Shield aralia based on 10 million real cases
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.
Learn More About the Brown spot more
Aged yellow and dry
Aged yellow and dry Aged yellow and dry Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Solutions: If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Learn More About the Aged yellow and dry more
Scars
Scars Scars Scars
Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.
Solutions: Each source of scarring requires a different approach to help your plant recover. Protect the trunk and leaves from physical damage like scrapes. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs. Frequent leaf or bud loss may be due to insufficient light or nutrients.
Learn More About the Scars more
icon
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close
Brown spot
plant poor
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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Aged yellow and dry
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Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Overview
Overview
Regardless of the type of plant or where it is grown, at some point, it will begin to aged yellow and dry. This is a natural, unavoidable process that happens when the plant has completed all of the steps in its life.
Annual plants go through this process at the end of a single growing season. Perennial plants live for multiple years, if not tens or hundreds of years, but will still ultimately exhibit these symptoms.
Symptom Analysis
Symptom Analysis
When plants have progressed through their natural developmental stages and are nearing the end of their lifecycle, they begin showing signs of decline. Leaves will start to yellow and droop, and over time they turn papery brown and dry.
Once completely dry, the leaves begin to fall from the plant until the entire plant has dried out.
Disease Cause
Disease Cause
At the end of its life, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence or natural aging and death. Cell division stops, and the plant begins catabolizing resources to use in other parts of the plant.
As this happens, the tissues begin yellow and drying until the entire plant is desiccated and perishes.
Solutions
Solutions
If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Prevention
Prevention
Unfortunately, there is no way to prevent plants from dying of “old age.” To help prolong their life, and put off symptoms of aged yellow and dry for as long as possible, take care of them by giving them enough water, fertilizing them appropriately, and making sure they get enough sunlight.
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Scars
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Scars
Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.
Symptom Analysis
Symptom Analysis
Scars form when the plant repairs wounds. They can be the result of people or pets passing by and scraping the plant. Once the underlying issue is resolved, the plant will heal but a scar may remain.
Pests and pathogens can also cause scarring. Insects may attack the plant for a meal, resulting in extensive scarring when a few invaders turn into an infestation. Diseases such as fungus and bacteria can weaken the plant, causing brown spots, mushy areas, or blisters that lead to scars.
Scars occur on stems when a leaf or bud has been lost and the plant has healed. The harder tissue is like a scab that protects a wound.
On other occasions, scars can signal problems from environmental conditions, such as overexposure to sunlight or heat. It might surprise you to know that plants can suffer from sunburn, even desert dwellers like cactus!
Solutions
Solutions
Each source of scarring requires a different approach to help your plant recover.
  1. Protect the trunk and leaves from physical damage like scrapes.
  2. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray.
  3. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs.
  4. Frequent leaf or bud loss may be due to insufficient light or nutrients.
Prevention
Prevention
Preventing some sources of scarring is easier than others, but all start with careful attention to your plants once you decide to bring them home.
  1. Review specific guidelines for your plant, including soil drainage, watering, and fertilizer requirements.
  2. Inspect plants before planting and use sterile pots and fresh potting soil or media to limit transfer of fungi or bacteria.
  3. Once established, check your plants regularly for signs of scarring or the presence of pests, as it is better to catch problems as early as possible.
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distribution

Distribution of Shield aralia

Habitat of Shield aralia

Gardens

Distribution Map of Shield aralia

distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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More Info on Shield Aralia Growth and Care

Basic Care Guide
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Plants Related to Shield aralia

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Lighting
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Indoor
Indoor
Outdoor
Choose a site here for personalized care tips.
Requirements
Full sun
Ideal
Above 6 hours sunlight
Partial sun
Tolerance
About 3-6 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
Shield aralia craves abundant light exposure for optimal growth, yet moderate light levels are bearable. Originating from a habitat that receives intense solar radiation, flourishing growth can be seen in settings with more sun. Insufficient light may hamper its growth, while excessive exposure can lead to leaf burn.
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
Shield aralia thrives in full sunlight but can tolerate partial shade. However, when cultivated indoors during winter, it's often placed in rooms with insufficient lighting, leading to easily noticeable symptoms of light deficiency.
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(Symptom details and solutions)
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 Shield aralia 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
Shield aralia 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 ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.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
Shield aralia thrives in full sun exposure but can also tolerate partial shade. They have a remarkable resilience to intense sunlight, and symptoms of sunburn may not be easily visible.
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(Symptom details and solutions)
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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Indoor
Indoor
Outdoor
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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
Shield aralia is native to environments with variable temperatures, best thriving between 68 to 100.4 °F (20 to 38 ℃). In cooler temperatures, it is recommended to bring shield aralia indoors or provide it with a warmer microclimate.
Regional wintering strategies
Shield aralia is extremely heat-loving, and any cold temperatures can cause harm to it. In the autumn, it is recommended to bring outdoor-grown Shield aralia indoors and place it near a bright window, but it should be kept at a certain distance from heaters. Maintaining temperatures above {Suitable_growth_temperature_min} during winter is beneficial for plant growth. Any temperatures approaching {Tolerable_growing_temperature_min} are detrimental to the plant.
Important Symptoms
Symptoms of Low Temperature in %s
Shield aralia prefers warm temperatures and is not tolerant of low temperatures. It 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}, the leaves may lighten in color. After frost damage, the color gradually turns brown or black, and symptoms such as wilting and drooping may occur.
Solutions
Trim off the frost-damaged parts. Immediately move indoors to a warm environment for cold protection. Choose a spot near a south-facing window to place the plant, ensuring ample sunlight. Additionally, avoid placing the plant near heaters or air conditioning vents to prevent excessive dryness in the air.
Symptoms of High Temperature in %s
During summer, Shield aralia should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the color of the leaves becomes lighter, 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. Water the plant in the morning and evening to keep the soil moist.
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Transplant
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How to Successfully Transplant Shield Aralia?
Transplanting shield aralia is best undertaken during the S1-S2 season, as this period offers optimal development conditions. Shield aralia requires a well-lit, warm location for successful transplantation. Remember, excess water can lead to root rot, so ensure well-drained soil for healthy growth.
What Preparations are Needed Before Transplanting Shield Aralia?
What is the Ideal Time for Transplanting Shield Aralia?
Transferring shield aralia between early spring and late summer (S1-S2) provides the perfect balance of warmth and moisture. This period endows shield aralia with a great chance to establish roots, ensuring splendid growth. Let's put our green thumbs to work during this ideal garden season!
How Much Space Should You Leave Between Shield Aralia Plants?
When transplanting your shield aralia, ensure you give it some room to grow. Ideally, leave a gap of about 2-3 feet (60-90 cm) between each plant. This allows it to spread out and flourish.
What is the Best Soil Mix for Shield Aralia Transplanting?
Your shield aralia will thrive best in well-draining soil mixed with organic matter or compost. As a start, apply a base fertilizer rich in nutrients to support its growth. Don't worry, you can find such fertilizers readily available in any garden store!
Where Should You Relocate Your Shield Aralia?
Plant your shield aralia in a location with partial shade to full sun exposure. Check your garden map and try to find an ideal spot where the plant will get a good balance of sun and shade. After all, we want our little shield aralia to be happy and healthy in its new home!
What Equipments Should You Prepare Before Transplantation Shield Aralia?
Shovel or Spade
For digging a hole in the new spot and helping to remove the shield aralia from its original location with care.
Gardening Gloves
To protect your hands while working with the soil and plant.
Garden Trowel
For digging smaller holes and handling the plant's root system gently.
Watering Can
To water the shield aralia before and after transplanting.
Mulch
To help the soil retain moisture after transplanting.
Gardening Scissors
To prune any damaged or diseased roots if necessary.
How Do You Remove Shield Aralia from the Soil?
From Ground: Start by watering the shield aralia to dampen the soil. This will make it easier to dig out the plant without damaging its roots. Dig a wide trench around the plant using a shovel or spade, ensuring the plant's root ball remains intact. After that, carefully slide the spade under the root ball to lift the plant from its original location.
From Pot: Start by watering the shield aralia gently to ease the process of removal, but be careful not to overwater it. Place one hand on the soil surface around the base of the plant. Turn the pot upside-down and tap lightly to release the plant. The shield aralia should come out easily along with its root ball.
From Seedling Tray: It's best if shield aralia seedlings are transplanted when they are big enough to handle. Gently ease out one seedling at a time using a dibber or the tip of a pencil, being careful not to disturb the surrounding seedlings and lifting each one by a leaf to avoid damaging the tiny root system.
Step-by-Step Guide for Transplanting Shield Aralia
Preparation
Ensure that you have all the equipment and the new location ready. The hole in the ground should be twice the width and the same depth as the root ball of shield aralia.
Handling
Handle the plant gently, taking extra care not to damage the root ball during removal and transplantation.
Planting
Place the shield aralia in the centre of the hole. Double-check to make sure the top of the root ball is level with the soil surface. Backfill the hole half way with soil then water it. Once the water has drained, fill the rest of the hole with soil.
Watering
Water the plant again right after transplanting to ensure the roots have good contact with the soil.
How Do You Care For Shield Aralia After Transplanting?
Watering
Provide enough water to keep the soil around the shield aralia consistently moist during the first few weeks after transplanting as it helps establish strong roots. Be careful not to overwater, the soil should be moist, but not soggy.
Checking
Regularly check the shield aralia for any signs of distress like wilting or discoloration, it can be an indication of transplant shock. If something like this happens, try adjusting its watering schedule and ensure it's protected from extreme weather conditions.
Pruning
Limit any pruning to removing only dead or damaged foliage for several weeks or until you see signs of new growth. Permitting the shield aralia to focus its energy on root development rather than new growth initially is essential.
Troubleshooting Common Issues with Shield Aralia Transplantation.
When's the best time to transplant shield aralia?
The ideal period to move shield aralia is during S1-S2. It ensures the plant settles before major growth stages.
What's the ideal space when transplanting shield aralia?
Ensure each shield aralia has a space of about 2-3 feet (60-90cm). This allows room enough for growth.
Should I water shield aralia after transplanting?
Yes, water shield aralia immediately after transplanting. It helps settle the soil and provides much needed moisture.
What size of pot should I use to transplant shield aralia?
Choose a pot that is 2 inches (5 cm) wider than the root ball to allow for growth.
How should I prepare the soil for transplanting shield aralia?
Add organic matter or compost to the soil to improve its nutrient content, making it healthy for shield aralia.
How can I handle the root ball of shield aralia during transplanting?
Gently loosen the root ball without damaging roots. If it's packed, untangle it carefully for optimal growth post-transplant.
What depth should I plant shield aralia when transplanting?
Plant shield aralia at the same depth it was in its previous spot. Too deep or shallow could cause harm.
Should I prune shield aralia before transplanting?
Minor pruning could help shield aralia to focus on establishing roots in the new location rather than maintaining foliage.
What weather conditions are ideal for transplanting shield aralia?
Overcast or cloudy days are ideal for transplanting shield aralia. It minimizes transplant shock due to sun exposure.
How does drainage affect transplants of shield aralia?
Good drainage is essential. Planting shield aralia in waterlogged soil can lead to root damage and hinder successful transplantation.
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