Pocket Botanist
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Check these first
- Poke your finger 2 inches into the soil to check for dampness.
- Inspect the drainage holes to ensure they are not blocked.
- Look at the underside of the leaves for any signs of pests.
Likely causes
Overwatering
Most likelyHow to tell: The leaves turn yellow starting from the bottom of the plant and the soil feels soggy to the touch.
What to do: Let the top 2 inches of soil dry out before watering again. Ensure your container or garden bed has excellent drainage to prevent standing water.
Nitrogen deficiency
PossibleHow to tell: Older leaves turn a pale yellow all over, including the veins, and growth slows down significantly.
What to do: Apply a balanced, water soluble fertilizer once every 4 weeks during the growing season. Follow the package instructions for the correct dilution rate.
Find out what's wrong with your jícama
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 oldest, lowest leaves to yellow and drop as the plant matures. Worry if the yellowing spreads rapidly to the newer growth at the top.
Stopping it coming back
Maintain a consistent watering schedule and feed your plant with a light organic fertilizer every month.
Jícama: yellow leaves? Check yours with a photo
Every plant is a little different. Take a photo of your jícama 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
- Can I save a yellow leaf?
- Once a leaf has turned fully yellow, it will not turn green again. You can snip it off to help the plant focus energy on new growth.
- Does jicama need a lot of fertilizer?
- Jicama prefers moderate feeding. Too much nitrogen can encourage leafy growth at the expense of the root tuber.
More problems with Jícama
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.