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Check these first
- Check the soil moisture by sticking your finger 2 inches deep.
- Inspect the pot for standing water in the saucer.
- Assess the light levels in your current room.
Likely causes
Overwatering
Most likelyHow to tell: The soil feels constantly soggy and the base of the stem may look mushy.
What to do: Stop watering immediately and let the top 2 inches of soil dry out. Ensure your pot has drainage holes so excess water can escape.
Insufficient Light
PossibleHow to tell: The leaves lose their deep green color and look pale or washed out.
What to do: Move your plant to a spot with brighter indirect light. Avoid direct sun, which can burn the foliage.
Find out what's wrong with your titan arum
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
If the yellowing spreads rapidly across the entire leaf, it is a sign of stress. If only the oldest leaf turns yellow as the plant prepares for dormancy, this is natural.
Stopping it coming back
Maintain a consistent watering schedule and ensure the soil stays moist but never waterlogged.
Titan arum: yellow leaves? Check yours with a photo
Every plant is a little different. Take a photo of your titan arum 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 cut off the yellow leaf?
- Wait until the leaf is completely brown and dry before removing it. The plant is still pulling nutrients from the leaf while it is yellowing.
- Does yellowing mean my tuber is rotting?
- It can be an early sign of rot if the soil is too wet. Check the stem base for softness.
More problems with Titan arum
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.