Pocket Botanist
Check these first
- Inspect the undersides of the leaves for orange dust.
- Check if the plant is crowded by other pots.
- Feel the soil to see if it is waterlogged.
Likely causes
Rust fungus
Most likelyHow to tell: Small, powdery orange or reddish pustules appear on the undersides of the leaves. The foliage may eventually yellow or wither around these spots.
What to do: Remove and destroy all infected leaves immediately to stop the spread. Improve air circulation around the plant and avoid overhead watering to keep the foliage dry.
Leaf spot disease
PossibleHow to tell: Darker, sunken spots with yellow halos appear on the leaves. These often occur when the plant stays wet for too long in cool conditions.
What to do: Prune away damaged leaves and ensure the soil surface dries slightly between waterings. Keep the area around the plant clean of fallen debris.
Find out what's wrong with your red-veined dock
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
Worry if the spots are spreading rapidly to new growth. It is normal to see a few spots on older, lower leaves as the season progresses.
Stopping it coming back
Water at the base of the plant to keep leaves dry and provide plenty of space for air to move between stems.
Red-veined dock: spots? Check yours with a photo
Every plant is a little different. Take a photo of your red-veined dock 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.
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Or go to pocketbotanist.app/get on your phone
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Questions people ask
- Can I save leaves with spots?
- It is best to remove them. The fungus will not go away on its own and can easily spread to healthy parts of the plant.
- Will this kill my plant?
- If caught early, your plant will recover just fine. If left untreated, the rust can weaken the plant significantly over time.
Guides to these causes
More problems with Red-veined dock
- Why are there bugs on my Red-veined dock?
- Why is my Red-veined dock drooping?
- Why are my red-veined dock leaves turning yellow?
- Why are my red-veined dock's leaf tips turning brown?
- How do I fix root rot in my red-veined dock?
- Why is my red-veined dock looking so leggy?
- Why are my red-veined dock leaves curling?
Back to the Red-veined dock 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.