Pocket BotanistCheck these first
- Examine the spots to see if they are spreading or fuzzy.
- Check if the leaves stay wet for long periods after rain or watering.
- Ensure the tree has enough space for air to move through the branches.
Likely causes
Fungal leaf spot
Most likelyHow to tell: You will see dark, irregular patches on the leaves that may have a yellow halo. These spots often appear during rainy or humid seasons.
What to do: Prune away the heavily infected leaves to stop the spread. Apply a copper based fungicide to the remaining foliage every 10 to 14 days during humid weather.
Overhead watering
PossibleHow to tell: Leaves that stay wet for hours after watering are prone to fungal growth. This is especially common if you water in the evening.
What to do: Switch to watering at the base of the tree to keep the foliage dry. Always water in the morning so any accidental splashes can evaporate quickly.
When to worry
It is serious if the spots cover most of the leaf surface and cause premature leaf drop. A few spots on older leaves are common and not a major concern.
Stopping it coming back
Improve air circulation around the tree and avoid wetting the leaves when you water.
Not sure which one it is? Photograph your ashoka tree.
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
- Should I remove all spotted leaves?
- Remove the ones that are heavily damaged or yellowing. If the tree is mostly healthy, you do not need to strip every single leaf.
- Is leaf spot contagious to other plants?
- Yes, fungal spores can spread through water splashes or wind. Keep infected plants away from your other greenery until they recover.
More problems with Ashoka tree
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.