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Dieffenbachias are low-maintenance tropical plants that add a lush quality to just about any space.
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As your plant grows new foliage, its older leaves will naturally turn yellow and fall off.
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Yellow leaves are the first sign that something’s wrong, followed by squishy stems and rotten black roots.
Stop watering immediately and allow the soil to dry out almost completely before watering again.
Check your plant’s pot to check that water can flow freely out of the holes.
Always check drip trays and saucers to check that your dieffenbachia isn’t sitting in water.
Give your plant a deep watering as soon as possible.
Lack of Light
A droopy, leggy dieffenbachia with yellow leaves may not be getting enough light.
These plants thrive with bright, indirect light but can’t handle direct sun.
Move the plant closer to the light source.
In very dim spaces, agrow lightcan help give your plant the light it needs.
Too Much Light
Overly bright conditions, including direct sunlight, can sunburn your dieffenbachia’s leaves.
This damage may appear as pale yellow or orange spots on the leaves or dry, brown patches.
ensure it isn’t receiving any direct sun.
Consider using a sheer curtain to help filter the light and protect your plant.
Check the undersides of leaves, stems, and the crown of the plant.
If you see pests or their signs, useinsecticidal soapto remove them.
Quarantine your dieffenbachia from your other plants and treat it with neem oil or other organic insecticide.
Check the rest of your plants carefully to see if pests have spread.
Temperature Shock
Some houseplants don’t respond well to sudden changes in their conditions.
confirm your plant is located away from vents blasting cold or hot air.
Place it somewhere in your space where sudden cold gusts from doors or windows won’t be an issue.
Dieffenbachia Diseases.Penn State Extension.
Dieffenbachia Production Guide.University of Florida IFAS.
