I have been growing and caring for my Chinese evergreen (aglaonema) for ten years. My aglaonema has been the happiest houseplant in years. But recently I noticed that my Chinese conifers that turn yellow and brown†
So why are my aglaonema leaves turning yellow? Too much water, low light, pests, aging leaves and lack of moisture are the reasons why pinkish Chinese evergreens turn yellow.
I wrote this article to help you identify the exact causes of Chinese evergreen leaves turn yellow† I have also shared tips for correcting yellow leaves of aglaonema without ruining the structure of the houseplant.
Contents
Reasons Why Chinese Evergreen (Aglaonema) Turns Yellow
excess water problem
Aglaonema plants thrive in slightly moist soil. Too much humidity due to too much water is the possible reason why the leaves turn yellow.
Other symptoms of a chinese evergreen watered dead leaves, leaf edema, brown spots and a putrid smell of compost.
The overwatering problem is caused by using poorly drained potting soil and a pot with no drainage holes in the bottom. These two factors will cause swampy and swampy problems.
I recommend watering the aglaonema once or twice a week during the spring and summer seasons. This is when this houseplant is actively growing and consuming the most water.
Be sure to reduce watering frequency when light and temperature are low. The indoor plant will grow slower in water and use less water.
If you suspect that the yellow chinese conifers due to overwatering, inspect the plant for signs of root rot. To do this, temporarily remove the plant from the pot.
If root rot is present, remove the houseplant from the pot and cut off the affected roots with sterilized pruning shears. Transplant it into cool, well-drained soil.
If there are no signs of root rot, allow the potting mix to dry out until the excess moisture has evaporated. Make sure there is no moisture about two inches deep.
Move your Chinese evergreen tree to a location that receives indirect sunlight and reduce humidity to speed up the rate of evaporation.
underwater problem
yellow leaves of aglaonema it can also be due to inconsistent watering habits. It is easier to identify and solve water problems.
The yellowing problem occurs on the lower leaves. The aglaonema plant allows these leaves to die back to promote younger growth.
You will also notice brown leaf tips and dry edges that are crisp to the touch. The houseplant then weakens and looks unhappy.
A regular watering schedule is the surest way to maintain a chinese evergreen tree under water† Move your aglaonema to a place with moderate temperature and light.
The change will help prevent the potting soil from drying out more quickly. Repotting the houseplant is another good alternative to prevent the potting soil from drying out quickly.
Incorrect lighting conditions.
The majority Indoor Chinese evergreens. can tolerate low light. but there are varieties of aglaonema which can handle low light exposure.
Pure green aglaonema species need indirect direct sunlight, while their variegated counterparts can tolerate less light.
If your pure green Chinese evergreens are starting to turn yellow, it’s a sign of low light. Move the houseplant to a location that receives direct and indirect sunlight.
If your variegated varieties are beginning to lose their vibrant colors, it is due to bright indirect exposure to sunlight. Move the houseplant to a location that receives low to medium light.
Aglaonema plants do not tolerate direct sun exposure. Too much direct sunlight can cause the Chinese conifers turn brown† † University of Florida†
temperature and depth
Yellow Chinese conifers are due to temperature extremes and drafts. A sudden change in temperature can significantly stress the plant and cause the leaves to turn yellow.
Brown tips and edges of Aglaonema leaves are other signs of sudden temperature changes. Curling of Chinese conifers can also be caused by temperature extremes and drafts.
Drafty radiators, air conditioners and windows cause extreme temperatures and drafts. Keep your plant away from these sources to avoid yellow leaves.
Aglaonema plants prefer a temperature range of 68-77OF (20-27OC). If the temperature is below 55 . drops of OF (13OC), the leaves of aglaonema turn yellow.
If temperatures are above 77 . ComeOF (27OC), your Chinese evergreens will turn yellow and brown.
Unfavorable temperatures and drafts are also the cause of Chinese evergreen wilt. Use a digital thermometer to check the interior temperature.
transplant stress
Indoor plants experience a shock after a sudden movement. I recommend caution when uprooting and transplanting ornamental plants.
Aglaonema plants tolerate the transplanting process well. But the leaves can turn yellow and wilt if not done correctly. Make sure the pot is a little bigger than the previous one.
Be sure to use a well-drained potting mix. I recommend a mix of potting soil and perlite. Perlite particles help improve soil drainage.
yellow leaves of aglaonema This may be due to root-related issues. Do not move your Chinese evergreens if there is no sign of root binding.
Fortunately, Chinese evergreens are slow-growing houseplants. You will see signs of rooting after many years. Provide the best aglaonema care for better growth.
pest infestations
All types of aglaonema are vulnerable to insect pests. These insects suck nutrients from the houseplant and inject poison into them.
The houseplant looks sickly and develops yellow leaves. Yellow spots on the leaves are signs of pest problems.
Spider mites, scale insects and aphids commonly attack Chinese evergreens. These pests can be troublesome and deadly to aglaonema plants.
Mealybugs look like little balls of cotton on the stems and leaves of Chinese evergreens. I recommend isolating the plant from other houseplants to prevent spreading.
Use an insecticidal soap spray to kill pests on your Chinese evergreen. Make sure to be patient, as getting rid of aglaonema parasites can be a daunting task.
plant disease problem
Chinese evergreens are also vulnerable to bacterial infections. These microscopic diseases tend to cause yellow leaves on Chinese evergreens.
Bacterial blight causes large black spots on aglaonema leaves. An overwatered aglaonema will develop yellow leaves due to fire blight. †University of Hawaii†
Isolate your aglaonema from other houseplants to prevent the spread of fire blight. Prune affected leaves with sterilized pruning shears and optimize growing conditions.
fertilizer problems
Aglaonema plants are light tropical houseplants due to their slow growing qualities. But small doses of liquid fertilizer will help improve the growth rate.
The yellow leaves of the aglaonema plant are a sign of nutritional deficiencies. I recommend applying a small dose of liquid fertilizer or transplanting the houseplant.
Nitrogen deficiency causes yellowing and discoloration of Chinese evergreens. A deficiency in potassium and phosphorus will result in leaves mottled with yellow colors.
If you suspect yellow aglaonema leaves are due to a nutritional deficiency, resume the feeding schedule. The Chinese evergreen becomes vibrant and healthy.
Be sure to feed your aglaonema during the spring and summer seasons. Do not apply fertilizer to the houseplant in winter, as this will lead to over-fertilization.
Remember to dry out the potting soil every three months to remove any salt buildup. Too much salt will cause Chinese conifers turn brown†
old foliage
The natural aging process causes yellow leaves at the lower level. Old leaves drop off and help the plant conserve energy for new growth.
It is normal to see yellow leaves on your Chinese evergreen in winter and fall due to reduced light conditions. Use artificial light to solve the leaf problem.
frequently asked Questions
Should I cut the yellow leaves of Chinese evergreens?
No. Pruning Chinese conifers can kill the entire plant. I recommend dropping yellow aglaonema leaves naturally.
Why are my Chinese evergreens curling?
Chinese evergreen loop due to excessive water loss. Lack of water due to too little water and root damage due to too much water can cause leaf curl.
Why does my Chinese evergreen plant die after I transplant it?
Insufficient water supply is the reason why Chinese conifers die after transplanting. It can also be because the roots are temporarily unable to absorb water.
Last word
If you see yellow aglaonema leaves, take a good look at your houseplant and think about the ultimate care routine. Excessive watering, low light and pests are the causes of yellowing leaves.
Examine your Chinese evergreen to identify the exact causes. It is much easier to fix the problem after identifying the cause.
It is normal to see yellow leaves on aglaonema plants. Keeping this houseplant vibrant and healthy can be tricky for beginners.
I hope this information has helped you understand the reasons why aglaonema leaves turn yellow and brown. Please feel free to share with your friends and family.
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