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Check these first
- Examine the leaves for fuzzy growth.
- Check if water is splashing onto the leaves.
- Look at the water source you are using.
Likely causes
Fungal leaf spot
Most likelyHow to tell: Small, dark, or water soaked spots appear on the foliage, often with a yellow halo.
What to do: Remove the affected leaves to prevent the spread. Improve air circulation around the plant and avoid getting water on the leaves when you water.
Water quality issues
PossibleHow to tell: Brown or yellow spots appear due to high mineral content in tap water.
What to do: Switch to using distilled or rainwater for your plant. This prevents mineral buildup that can damage the delicate leaf tissue.
Find out what's wrong with your downy rattlesnake plantain
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 rapidly across the plant, it needs immediate attention. Small, isolated marks are often just minor cosmetic damage.
Stopping it coming back
Keep the foliage dry and ensure there is a gentle breeze or good airflow around the plant.
Downy rattlesnake plantain: spots? Check yours with a photo
Every plant is a little different. Take a photo of your downy rattlesnake plantain 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
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Questions people ask
- Are these spots a sign of a pest?
- Sometimes, but usually spots on this plant are fungal. Check closely for tiny insects just in case.
- Should I cut off all spotted leaves?
- Yes, it is best to remove them to keep the plant healthy. Use clean scissors and wipe them with alcohol between cuts.
Guides to these causes
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Back to the Downy rattlesnake plantain 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.