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Check these first
- Feel the soil to see if it is waterlogged.
- Check if the drainage holes are blocked.
- Look for signs of pests on the undersides of the leaves.
Likely causes
Root Rot
Most likelyHow to tell: The leaves turn yellow and the plant looks generally weak. The soil feels soggy and smells slightly sour.
What to do: Stop watering immediately and ensure the soil has proper drainage. If the plant is in a container, check the drainage holes and repot into fresh, well draining soil if necessary.
Nutrient Deficiency
PossibleHow to tell: Older leaves turn yellow while the veins remain green. This often happens if the plant has been in the same spot for many years.
What to do: Apply a balanced, slow release fertilizer in early spring. Follow the package instructions for the correct amount based on your plant size.
Find out what's wrong with your clematis
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 the very oldest leaves at the bottom of the vine to yellow and drop as the plant grows. Worry if the yellowing spreads rapidly across the whole plant.
Stopping it coming back
Ensure your clematis is planted in soil that drains well and never sits in standing water. Use a high quality organic mulch to maintain steady moisture.
Clematis: yellow leaves? Check yours with a photo
Every plant is a little different. Take a photo of your clematis 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 too much sun cause yellow leaves?
- Yes, if the leaves are scorched, they may turn yellow or bleached. Clematis prefer their roots in the shade and their heads in the sun.
- How often should I fertilize?
- Feed your clematis once in early spring as new growth appears. Avoid over fertilizing, as this can lead to weak, yellowing foliage.
Guides to these causes
More problems with Clematis
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.