Check these first
- Check the soil moisture with your finger.
- Inspect the undersides of leaves for tiny pests.
- Look for drainage holes in the bottom of the pot.
Likely causes
Overwatering
Most likelyHow to tell: The leaves turn yellow starting from the bottom of the plant and the soil feels constantly soggy.
What to do: Let the top inch of soil dry out completely before watering again. Ensure your pot has drainage holes so excess water can escape.
Nitrogen Deficiency
Most likelyHow to tell: Older leaves turn a pale yellow while the plant growth slows down significantly.
What to do: Apply a balanced liquid fertilizer every 2 weeks during the growing season. Follow the label instructions to avoid burning the roots.
Find out what's wrong with your chili pepper
The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
When to worry
It is normal for the very lowest, oldest leaves to yellow and drop as the plant matures. Worry if the yellowing spreads rapidly to the upper foliage.
Stopping it coming back
Maintain a consistent watering schedule and feed the plant regularly with a high quality vegetable fertilizer.
Chili pepper: yellow leaves? Check yours with a photo
Every plant is a little different. Take a photo of your chili pepper and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
Get the app · Or check it from a photo now, free
Questions people ask
- Should I remove the yellow leaves?
- Yes, you can snip them off with clean scissors. This helps the plant focus its energy on healthy new growth.
- Can pests cause yellowing?
- Yes, aphids often cause yellowing by sucking sap from the leaves. Check the undersides of the leaves for small clusters of insects.
More problems with Chili pepper
- Why is my chili pepper plant drooping?
- Why are there bugs on my chili pepper plant?
- Why is my chili pepper plant not flowering?
- Why is my chili pepper plant growing so leggy?
- Why are my chili pepper leaves curling?
- Why are there spots on my chili pepper fruit?
- Why are my chili pepper leaves getting brown tips?
- Why is my chili pepper dropping its leaves?
- Why is my chili pepper plant suffering from root rot?
Back to the Chili pepper guide
This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.

