Pocket BotanistCheck these first
- Inspect the leaves for fuzzy growth or spreading dark patches.
- Check the soil moisture level with your finger.
- Assess the airflow in the area where the plant is growing.
Likely causes
Fungal leaf spot
Most likelyHow to tell: You will see small dark or black spots appearing on the leaves during humid weather. It often spreads when the foliage stays wet for too long.
What to do: Remove the affected leaves immediately to stop the spread. Improve airflow by thinning out dense patches and avoid watering from overhead in the evening.
Overwatering
PossibleHow to tell: The soil stays soggy and the spots look waterlogged or mushy. This creates the perfect environment for fungus to thrive.
What to do: Let the top inch of soil dry out slightly before watering again. Ensure your planting area has excellent drainage to prevent standing water.
When to worry
If the spots are spreading rapidly across the entire patch, you need to act fast to save the planting. A few isolated spots are normal after heavy rain.
Stopping it coming back
Water only at the base of the plant early in the morning so the leaves dry quickly. Keep the area clear of debris to encourage good air circulation.
Not sure which one it is? Photograph your creeping buttonweed.
This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Questions people ask
- Will the spots go away on their own?
- No, the damaged leaves will not heal. You should remove them to keep the rest of the plant healthy.
- Can I use a fungicide?
- You can use a copper based fungicide if the infection is severe. Always follow the label instructions carefully.
More problems with Creeping Buttonweed
Back to the Creeping Buttonweed guide
This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.