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Check these first
- Observe if the flowers have already faded.
- Feel the soil moisture level with your finger.
- Check the drainage of your garden bed.
Likely causes
Natural Dormancy
Most likelyHow to tell: The foliage turns yellow and then brown after the flowers have faded in late spring. This is a normal part of the plant life cycle as it stores energy for next year.
What to do: Leave the foliage alone until it turns completely brown and dies back naturally. Do not cut it off early because the plant needs those leaves to photosynthesize and build up the corm for the next season.
Overwatering
Most likelyHow to tell: The leaves turn yellow prematurely while the soil feels soggy or swampy to the touch. You might notice a musty smell coming from the soil surface.
What to do: Stop watering immediately and allow the top 2 inches of soil to dry out. Ensure your planting site has excellent drainage, as crocus corms will rot quickly in standing water.
Find out what's wrong with your spring crocus
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.
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When to worry
It is normal for leaves to yellow after flowering. Worry only if the leaves yellow while the plant is still actively blooming or if the soil is constantly waterlogged.
Stopping it coming back
Plant your crocus in well-draining soil and avoid overwatering once the foliage begins to die back naturally.
Spring Crocus: yellow leaves? Check yours with a photo
Every plant is a little different. Take a photo of your spring crocus 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 trim the yellow leaves?
- No, wait until they are fully brown and crispy. Trimming them while they are still yellow prevents the corm from storing the energy it needs to bloom next spring.
- Will my crocus come back if the leaves turn yellow early?
- If they turn yellow due to natural dormancy, yes. If they turn yellow due to rot, the corm may be damaged and might not return.
More problems with Spring Crocus
Back to the Spring Crocus 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.