Pocket BotanistCheck these first
- Touch the top inch of soil to check moisture.
- Check the drainage holes in your pot.
- Look for signs of pests on the undersides of the leaves.
Likely causes
Overwatering
Most likelyHow to tell: The lower leaves turn yellow and feel soft or mushy. The soil stays wet for long periods.
What to do: Let the top inch of soil dry out completely before watering again. Ensure your pot has drainage holes to prevent water from pooling.
Underwatering
PossibleHow to tell: Leaves turn yellow and crispy, starting from the edges. The soil feels bone dry to the touch.
What to do: Water the plant thoroughly until water runs out of the drainage holes. Maintain a schedule of watering every 3 to 7 days.
When to worry
A few yellow leaves at the very base of the plant are normal as it ages. If the yellowing spreads to the top of the plant, address it immediately.
Stopping it coming back
Follow a consistent watering schedule and ensure the soil drains well.
Not sure which one it is? Photograph your corn cockle.
This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Questions people ask
- Should I remove the yellow leaves?
- Yes, you can snip off yellow leaves to keep the plant looking tidy and prevent potential rot.
- Can yellow leaves turn green again?
- No, once a leaf has turned yellow, it will not turn green again. Focus on preventing the yellowing from spreading to new growth.
More problems with Corn Cockle
This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.