Check these first
- Check if you are getting water on the leaves when you irrigate.
- Look for signs of poor airflow around the plant.
- Examine the spots to see if they are spreading.
Likely causes
Leaf spot disease
Most likelyHow to tell: You will see dark, irregular spots with yellow halos on the leaves.
What to do: Remove the affected leaves to stop the spread. Improve air circulation around the plant and avoid getting water on the leaves when you water.
Water splashing
PossibleHow to tell: Small, scattered brown spots appear after you water the plant from above.
What to do: Water directly at the base of the plant near the soil line. Keep the foliage dry to prevent fungal growth.
Find out what's wrong with your japanese aralia
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
A few small spots are usually cosmetic and not a major threat. If the spots are rapidly spreading or turning into large dead patches, you need to treat the plant.
Stopping it coming back
Water the soil directly and keep the leaves dry. Ensure the plant has enough space around it for air to move freely.
Japanese aralia: spots? Check yours with a photo
Every plant is a little different. Take a photo of your japanese aralia 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 cut off the spotted leaves?
- Yes, trimming off damaged leaves helps the plant look better and prevents the fungus from spreading to healthy parts.
- Is this caused by too much light?
- Usually not. Fatsia prefers medium light, so spots are more likely related to moisture or fungal issues than sun exposure.
Guides to these causes
More problems with Japanese aralia
- Why does my Fatsia have spider mites or scale?
- Why are my Fatsia japonica leaves turning yellow?
- Why are my Fatsia japonica leaf tips turning brown?
- Why is my Fatsia japonica drooping?
- Why is my Fatsia japonica growing so leggy?
- Is my Fatsia suffering from root rot?
- Why is my Fatsia japonica dropping its leaves?
- Why are my Fatsia japonica leaves curling?
Back to the Japanese aralia 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.

