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Lasia
Lasia
Lasia
Lasia
Lasia
Lasia
Lasia
Lasia spinosa
Hardiness Zones
Hardiness Zones
8 to 11
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care guide

Care Guide for Lasia

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Soil Care
Soil Care
Neutral, Slightly 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
8 to 11
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Lasia
Sunlight
Sunlight
Full sun
Hardiness Zones
Hardiness Zones
8 to 11
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Questions About Lasia

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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 Lasia?
There are plenty of viable ways to supply your Lasia with water. If you grow your plant in an indoor pot, for the Lasias in small pots, you can bring your potted plant to your kitchen sink. Then, use the faucet to add water to the container. By holding the pot in your hands, you should easily notice when the water begins to run through the pot’s drainage holes, at which point you can stop watering. The cold temperature will hurt the plants' root system, so please don't do this during winter or in cold climates. Most of the time, watering via your faucet is permissible for the Lasia. However, if the local tap water contains a high proportion of fluorine, chlorine or salts, you should consider using rainwater or lake water. Also, since the Lasia can respond well to overhead watering and watering directly into the soil, you can use a watering can, hose, or just about any tool you’d like to water it.
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What should I do if I water my Lasia too much or too little?
If you discover that you have underwatered your Lasia, your first step towards remedying the situation is to give your plant some water. Water deeply until excess water runs from the container’s drainage hole, or if you grow outside, water until the soil has become entirely moist. If you find your Lasia is receiving too much water, begin by reducing your watering schedule. You also want to address the soil and container your Lasia grows in. If either the soil or the container makes it difficult for water to drain efficiently, your plant will likely become overwatered again. Resolve the issue by moving your plant to looser soils and/or a container with bigger drainage holes or a more porous material. Also check the location of the plant. If the plant is in places like a corner, then it is recommended to move it to a window or around a door to enhance ventilation. Making sure the plants are in a well-ventilated location can reduce the occurrence of overwatering to some extent.
Read More more
How often should I water my Lasia?
The Lasia is not a species that requires consistent soil moisture. Instead, it is better to allow this plant’s soil to become dry between waterings. If you are like the many gardeners who grow Lasias in containers, you can judge whether or not it is time to add water by how dry the soil within the container is. For instance, if about top half of the soil in your container has become dry, it is time to add water. You can feel it by inserting your fingers or sticks into the soil or with soil moisture meter. For those who grow the Lasia outdoors, you can plan to do your watering about once every other week, provided it has not rained recently.
Read More more
How much water does my Lasia need?
After waiting for the first several layers of soil surrounding your Lasia’s root to become dry(top half of the soil), it is time to add enough water to make them moist again. The amount of water it takes to achieve that goal depends on if you use a container, how large that container is, and how large your plant itself is. For a small Lasia growing in a small to a medium-sized container, one to two cups may be enough to dampen the soil sufficiently. As you would expect, the volume of water you supply should increase for a larger plant. The best way to make sure your plant has received enough water is to stick your finger or a trowel into the soil and feel whether it is entirely moist. Alternatively, you can water until you see excess water draining from the holes at the bottom of your container.
Read More more
How can I tell if i'm watering my Lasia enough?
Overwatering and underwatering are both bad for the health of your Lasia. These two issues also manifest themselves in subtly different ways when they occur. Lasia that receives too little water may begin to develop yellow leaves. Underwatering may also cause the leaf margins to become brown and brittle. By contrast, Lasia that gets overwatered will often show yellow and brown marks on its leaves at the same time. Overwatering can also lead to diseases like root rot, some of which may also be visible on your plant. However, if you know the signs of overwatering and underwatering, you stand a good chance of correcting both issues.
Read More more
How should I water my Lasia through the seasons?
During spring and fall, your watering schedule for the Lasia will remain relatively the same, which will involve watering this plant about once every week. During summer, you may find that the hot weather causes your plant to need more water than usual, especially if it grows where there is a considerable amount of daily light exposure. In the winter, if it's hard to find some warm places for you plant, your Lasia will enter a dormant growth phase, in which it will need far less water than usual. At this time, you may get by without watering your plant at all. If you do choose to water during winter, you should not do so more often than once every two to three weeks.
Read More more
How should I water my Lasia at different growth stages?
After planting a new, young Lasia or after transplanting an older Lasia, you will probably need to give this plant more water than usual. Young plants often need consistent soil moisture during the early stages of their growth to help them adapt to their new growing locations. Transplants also need more water for a brief time to overcome transplant shock. In either case, you may need to water multiple times per week until your plant has exhibited continuous healthy growth. In most situations, your water should be moderate and should never be significant enough to cause overwatering.
Read More more
What's the difference between watering Lasia indoors and outdoors?
There are a few reasons why you may need to water an indoor Lasia more often than one that grows in the ground outdoors. First, indoor growing settings tend to be drier than outdoor ones, often due to the effect of air conditioning units. While thw size of the pot and the soil determines the warer accumulating ability. Additionally, when your plant grows indoors, it will rely on you entirely for its water By contrast, Lasia that grows outside can receive water from rain. If you are in an area with high rainfall, you may not have to give it extra watering. When there is not enough rain, you should water additionally to ensure that the soil does not dry out completely.
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Key Facts About Lasia

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Attributes of Lasia

Lifespan
Perennial
Plant Type
Herb
Bloom Time
Spring, Summer
Plant Height
99 cm to 2 m
Spread
10 cm
Leaf Color
Green
Leaf type
Evergreen
Ideal Temperature
15 - 38 ℃

Scientific Classification of Lasia

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Common Pests & Diseases About Lasia

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Common issues for Lasia based on 10 million real cases
Crown gall
Crown gall Crown gall
Crown gall
Bacterial infections can cause abnormal brown or black growths on the trunk of the tree. These are also called crown galls.
Solutions: Remove infected tissue. Established trees can survive a crown gall infection, but the galls should be removed to improve the plant's appearance. Use pruning shears to remove the gall, then treat the wound with a pruning sealer. Discard pruned material by putting it in the trash or burning it to avoid infecting other plants. Sterilize the pruning shears after removing the galls. Remove the entire plant. If a small plant is infected with a serious case of crown gall, the best option is to remove the entire plant and burn it. This will prevent bacteria from spreading to other plants. Sterilize the soil. After removing infected tissue, sterilize the soil using heat. Alternatively, plant a gall-resistant plant in the same spot.
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.
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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Crown gall
plant poor
Crown gall
Bacterial infections can cause abnormal brown or black growths on the trunk of the tree. These are also called crown galls.
Overview
Overview
Crown gall is a bacterial disease that affects many different species of shrubs. It produces unsightly growths called galls on stems, branches, and roots. These galls stunt the growth of plants and weaken them. This is because they disrupt the flow of water and nutrients from the roots up to other areas of the plant.
Crown gall growth is generally more rapid during warm weather. There are no chemical solutions available that will kill this disease. The presence of galls does not usually cause the death of a plant, however. These galls can easily be spread to other plants through contaminated tools or soil.
Symptom Analysis
Symptom Analysis
Crown gall is most often seen on lower branches. This disease appears as deformed growths on stems, branches, or roots that gradually enlarge over time.
As the galls enlarge, they become hard and woody. Their appearance is usually brown and corky. The plant will show symptoms of stunted growth and there may be evidence of tip dieback.
Disease Cause
Disease Cause
Crown gall is caused by the bacteria Agrobacterium tumefaciens. This bacteria lives in the soil, and can survive there for many years. It is spread onto the plant by water splashing up from contaminated soil. Infected pruning tools can also spread the disease onto plants.
The bacteria enter the plant through open wounds. These could be caused by chewing insects or damage from gardening tools such as lawnmowers. Pruning cuts that have not been treated can also be infected by this bacterial disease.
Once the bacteria have entered the plant, they stimulate rapid growth in plant cells, and this is what causes the abnormal growths.
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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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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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Distribution of Lasia

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Habitat of Lasia

Swamps, riverbanks, ditches, moist places in tropical and subtropical forests, cultivated along fish ponds and rice fields
Northern Hemisphere
South Hemisphere

Distribution Map of Lasia

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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More Info on Lasia Growth and Care

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Basic Care Guide
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Lighting
Full sun
Lasia thrives under full exposure to the sun's rays. It can also grow adequately with a moderate amount of sunlight. Its origin habitat exposed it to profuse light, which it requires for healthy growth, but extreme sunlight can possibly lead to adverse effects. Insufficient light exposure may hinder its growth.
Best Sunlight Practices
Transplant
2-3 feet
Optimal time to transplant lasia is during seasons S1-S2, its dormancy period, to minimize stress. Choose an adequately shaded location with rich, well-draining soil. Remember, lasia prefers a moist environment. Take care to avoid damaging roots during transplant. Handle with love!
Transplant Techniques
Temperature
-5 - 43 ℃
Lasia is a plant native to temperate areas, preferring temperatures in the range of 59 to 100°F (15 to 38℃). In cooler seasons, it could benefit from some warming protection. Be cautious of the temperature drops.
Temp for Healthy Growth
Feng shui direction
Southwest
The lasia shows a reasonable harmoniousness when positioned in a southwest-facing direction. The plant's spiky leaves echo the sharp, masculine energy, or 'Sha Chi', typically associated with the Southwest, in Yin-Yang theory of Feng Shui. This could bestow a certain balance, albeit subjective, to the energies within that space.
Fengshui Details
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Plants Related to Lasia

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Pipsissewa
Pipsissewa
Charming and adorable, pipsissewa is also known as Prince’s Pine. It grows dangling clusters of white to pink blooms and is native to the Adirondacks. The leaves of this little plant have been used as flavorings for candies and drinks and can also be made into a tea.
Pink ruby
Pink ruby
The pink ruby has a smooth leaf surface with a waxy sensation. The whole plant turns bright red when there is plenty of light and the right temperatures, making it look like a glimmering ruby after the rain, when water droplets still hang on the leaves. In the summer, the leaves tend to fade to emerald green.
Pink Honeysuckle
Pink Honeysuckle
Pink Honeysuckle (Lonicera hispidula) is a woody evergreen vine that can grow from 91 to 610 cm long. It is a loose growing vine that can make an excellent ground cover. Pinkish-purple flowers bloom in spring, followed by bright red berries that ripen in fall. Flowers have a honey-sweet nectar. Attracts bees, butterflies and song birds.
Piggyback Plant
Piggyback Plant
Piggyback Plant (Tolmiea menziesii) gets its name from the little leaflets that “piggyback” at the base of each bigger leaf. It’ll look fantastic either outside in your garden or as a hanging plant indoors. The flowers are an unusual chocolate purple color. You’ll see it in the wild in expansive pine forests where the soil is moist. You also see it beside rushing streams.
Paperbush
Paperbush
The paperbush plant is appreciated for its beautiful form and pleasantly fragrant flowers. The bark is harvested for high-quality paper production and the Japanese cultivated this plant for making banknotes. The genus name Edgeworthia probably refers to Irish-born botanist Michael Pakenham Edgeworth and his sister Maria Edgeworth, while the specific epithet chrysantha refers to its yellow-gold flowers.
Oregon ash
Oregon ash
Fraxinus latifolia is a native of the Pacific Northwest area of the United States. Part of its Latin name, 'latifolia' means wide leaves. This tree has wider leaves than other species of ash. Oregon ash can grow to heights of 18 m to 24 m in height, with a trunk diameter of 41 to 76 cm.
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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Lasia
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Hardiness Zones
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Care Guide for Lasia

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Questions About Lasia

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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 Lasia?
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What should I do if I water my Lasia too much or too little?
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How often should I water my Lasia?
more
How much water does my Lasia need?
more
How can I tell if i'm watering my Lasia enough?
more
How should I water my Lasia through the seasons?
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How should I water my Lasia at different growth stages?
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What's the difference between watering Lasia indoors and outdoors?
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Key Facts About Lasia

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Attributes of Lasia

Lifespan
Perennial
Plant Type
Herb
Bloom Time
Spring, Summer
Plant Height
99 cm to 2 m
Spread
10 cm
Leaf Color
Green
Leaf type
Evergreen
Ideal Temperature
15 - 38 ℃
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Scientific Classification of Lasia

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Common Pests & Diseases About Lasia

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Common issues for Lasia based on 10 million real cases
Crown gall
Crown gall Crown gall Crown gall
Bacterial infections can cause abnormal brown or black growths on the trunk of the tree. These are also called crown galls.
Solutions: Remove infected tissue. Established trees can survive a crown gall infection, but the galls should be removed to improve the plant's appearance. Use pruning shears to remove the gall, then treat the wound with a pruning sealer. Discard pruned material by putting it in the trash or burning it to avoid infecting other plants. Sterilize the pruning shears after removing the galls. Remove the entire plant. If a small plant is infected with a serious case of crown gall, the best option is to remove the entire plant and burn it. This will prevent bacteria from spreading to other plants. Sterilize the soil. After removing infected tissue, sterilize the soil using heat. Alternatively, plant a gall-resistant plant in the same spot.
Learn More About the Crown gall 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
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
close
Crown gall
plant poor
Crown gall
Bacterial infections can cause abnormal brown or black growths on the trunk of the tree. These are also called crown galls.
Overview
Overview
Crown gall is a bacterial disease that affects many different species of shrubs. It produces unsightly growths called galls on stems, branches, and roots. These galls stunt the growth of plants and weaken them. This is because they disrupt the flow of water and nutrients from the roots up to other areas of the plant.
Crown gall growth is generally more rapid during warm weather. There are no chemical solutions available that will kill this disease. The presence of galls does not usually cause the death of a plant, however. These galls can easily be spread to other plants through contaminated tools or soil.
Symptom Analysis
Symptom Analysis
Crown gall is most often seen on lower branches. This disease appears as deformed growths on stems, branches, or roots that gradually enlarge over time.
As the galls enlarge, they become hard and woody. Their appearance is usually brown and corky. The plant will show symptoms of stunted growth and there may be evidence of tip dieback.
Disease Cause
Disease Cause
Crown gall is caused by the bacteria Agrobacterium tumefaciens. This bacteria lives in the soil, and can survive there for many years. It is spread onto the plant by water splashing up from contaminated soil. Infected pruning tools can also spread the disease onto plants.
The bacteria enter the plant through open wounds. These could be caused by chewing insects or damage from gardening tools such as lawnmowers. Pruning cuts that have not been treated can also be infected by this bacterial disease.
Once the bacteria have entered the plant, they stimulate rapid growth in plant cells, and this is what causes the abnormal growths.
Solutions
Solutions
  1. Remove infected tissue. Established trees can survive a crown gall infection, but the galls should be removed to improve the plant's appearance. Use pruning shears to remove the gall, then treat the wound with a pruning sealer. Discard pruned material by putting it in the trash or burning it to avoid infecting other plants. Sterilize the pruning shears after removing the galls.
  2. Remove the entire plant. If a small plant is infected with a serious case of crown gall, the best option is to remove the entire plant and burn it. This will prevent bacteria from spreading to other plants.
  3. Sterilize the soil. After removing infected tissue, sterilize the soil using heat. Alternatively, plant a gall-resistant plant in the same spot.
Prevention
Prevention
To prevent crown gall, avoid introducing and spreading the bacteria that causes it.
  1. Avoid infected plants. Inspect all new plants for symptoms. Dispose of any plants that show signs of crown gall.
  2. Sanitize pruning tools. Use an approved sanitizing solution to treat pruning shears both before and after use. A freshly-mixed solution of 1 part bleach to 9 parts water will be most effective.
  3. Avoid mounding soil around the crown of the plant, keeping this area as dry as possible. Remove dead branches and leaves to prevent the occurrence of pests and diseases.
  4. Utilize beneficial bacteria. The beneficial bacterium Agrobacterium radiobacter strain 84 can be used during planting to prevent crown gall. To use, simply dip bare-rooted plants in the solution, or water rooted plants with a solution of the aforementioned bacteria.
  5. Correct overly alkaline soils. Crown gall-causing bacteria thrive in alkaline soils, so check the pH level of the soil and reduce the alkalinity.
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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.
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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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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Distribution of Lasia

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Habitat of Lasia

Swamps, riverbanks, ditches, moist places in tropical and subtropical forests, cultivated along fish ponds and rice fields
Northern Hemisphere
South Hemisphere

Distribution Map of Lasia

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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Plants Related to Lasia

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Lighting
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Indoor
Indoor
Outdoor
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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
Lasia thrives under full exposure to the sun's rays. It can also grow adequately with a moderate amount of sunlight. Its origin habitat exposed it to profuse light, which it requires for healthy growth, but extreme sunlight can possibly lead to adverse effects. Insufficient light exposure may hinder its growth.
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
Lasia thrives in full sunlight and is commonly grown outdoors where it receives ample sunlight. When placed in rooms with inadequate lighting, symptoms of light deficiency may not be readily apparent.
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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 Lasia 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
Lasia 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
Lasia thrives in full sun exposure and can tolerate intense sunlight. With their remarkable resilience, symptoms of sunburn may not be easily visible, as they rarely suffer from it.
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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
Lasia is a plant native to temperate areas, preferring temperatures in the range of 59 to 100°F (15 to 38℃). In cooler seasons, it could benefit from some warming protection. Be cautious of the temperature drops.
Regional wintering strategies
Lasia has some cold tolerance and generally does not require any additional measures when the temperature is above {Tolerable_growing_temperature_min}. However, if the temperature is expected to drop below {Tolerable_growing_temperature_min}, it is necessary to take some temporary measures for cold protection, such as wrapping the plant with plastic film, fabric, or other materials. Once the temperature rises again, the protective measures should be removed promptly.
Important Symptoms
Symptoms of Low Temperature in Lasia
Lasia has moderate tolerance to low temperatures 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}, the leaves may start to droop. In mild cases, they can recover, but in severe cases, the leaves will wilt and eventually fall off.
Solutions
Trim off the frost-damaged parts. Prior to encountering low temperatures again, wrap the plant with materials such as non-woven fabric or cloth, and construct a wind barrier to protect it from the cold wind.
Symptoms of High Temperature in Lasia
During summer, Lasia should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the color of the leaves becomes lighter, the leaf tips may become dry and withered, the leaves may curl, 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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