Pocket Botanist
Check these first
- Inspect the underside of the leaves for orange dust.
- Check if the leaves are staying wet after watering.
- Ensure the plant has enough space for air to move around it.
Likely causes
Fungal Rust
Most likelyHow to tell: Small orange or brown spots appear on the leaves, often with a powdery texture.
What to do: Remove the affected leaves immediately to stop the spread. Improve air circulation around the plant and avoid getting water on the foliage when you water.
Overhead Watering
PossibleHow to tell: Spots appear after you have been watering the leaves directly.
What to do: Always water at the base of the plant directly onto the soil. Keep the leaves dry to prevent fungal growth.
Find out what's wrong with your greater wood-rush
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
If the spots are spreading to every leaf, the plant is struggling to photosynthesize. Take action as soon as you see the first few spots.
Stopping it coming back
Keep the foliage dry and ensure your plant is in a spot with good airflow.
Greater wood-rush: spots? Check yours with a photo
Every plant is a little different. Take a photo of your greater wood-rush 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 I save the plant if it has rust?
- Yes, by removing infected leaves and improving airflow. If the infection is severe, you may need a fungicide.
- Is this contagious to my other plants?
- Fungal spores can travel through the air, so isolate the affected plant until it is healthy again.
Guides to these causes
More problems with Greater wood-rush
Back to the Greater wood-rush 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.