Pocket Botanist
Check these first
- Look for white dust on the leaves.
- Check if the spots are brown or black.
- Ensure the plant has enough space from neighbors.
Likely causes
Leaf Spot Disease
Most likelyHow to tell: Small brown or black spots appear on the foliage, sometimes with a yellow halo.
What to do: Remove and discard any infected leaves to stop the spread. Apply a copper based fungicide if the infection continues to move across the plant.
Powdery Mildew
PossibleHow to tell: A white, dusty coating appears on the leaves and stems.
What to do: Improve air circulation by thinning out crowded plants. Spray the foliage with a mixture of one tablespoon of baking soda in a gallon of water.
Find out what's wrong with your blanket flower
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 cover more than half of the foliage, the plant will struggle to photosynthesize and may decline. Minor spotting is common during rainy seasons.
Stopping it coming back
Water at the base of the plant to keep the foliage dry and ensure it gets full sun all day.
Blanket flower: spots? Check yours with a photo
Every plant is a little different. Take a photo of your blanket flower 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
- Will these spots kill my plant?
- Usually no, but they can weaken the plant and make it look unattractive. Treat them early to keep the plant vigorous.
- Is it safe to compost the spotted leaves?
- No, it is better to throw them in the trash to prevent fungal spores from spreading in your garden.
Guides to these causes
More problems with Blanket flower
Back to the Blanket flower 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.