Pocket Botanist
Check these first
- Check for fuzzy growth on the spots.
- Improve airflow around the plant.
- Switch to filtered water for one month.
Likely causes
Fungal infection
PossibleHow to tell: Small brown or black spots appear on the stems, sometimes with a fuzzy texture. This happens when the plant stays too wet with no airflow.
What to do: Improve air circulation around the plant by moving it to a more open area. Remove the affected stems and avoid getting water directly on the foliage when watering.
Water quality issues
PossibleHow to tell: Yellow or brown spots develop due to high mineral content in tap water. This is more common if you use water with high chlorine or fluoride levels.
What to do: Switch to using filtered or rainwater for your plant. This prevents mineral buildup in the soil that can cause leaf damage.
Find out what's wrong with your toad 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 rapidly across all stems, it is a serious sign of infection. A few small spots are usually just a minor reaction to water quality.
Stopping it coming back
Water at the base of the plant instead of over the top of the stems. Keep the area well ventilated to prevent fungal growth.
Toad rush: spots? Check yours with a photo
Every plant is a little different. Take a photo of your toad 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
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Questions people ask
- Should I mist my Toad rush?
- No, misting can encourage fungal spots on the stems. Keep the soil damp instead of wetting the foliage.
- Are these spots a sign of pests?
- Pests are rare on this plant. If you see spots, it is almost always related to moisture, airflow, or water quality.
More problems with Toad rush
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.