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Japanese skimmia · Skimmia japonica

Why are there spots on my Skimmia japonica leaves?

It is less common for this plant to develop spots, which usually happens due to spider mite damage or nutrient deficiencies. Check the undersides of the leaves for tiny pests first.

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spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Look at the undersides of leaves for tiny webs or moving dots.
  2. Check if the spots are yellow or brown.
  3. Test the soil pH if the leaves look pale.

Likely causes

  1. Spider Mites

    Possible

    How to tell: You will see tiny yellow or brown stippling on the leaves. Look closely for fine webbing between the leaves or stems.

    What to do: Wipe the leaves down with a damp cloth to remove the mites. Use insecticidal soap or neem oil once a week until the pests are gone.

  2. Chlorosis

    Possible

    How to tell: Leaves develop yellow spots or pale patches while the veins stay green. This is often caused by high soil pH or iron deficiency.

    What to do: Test your soil pH and aim for an acidic range. Apply an iron supplement or fertilizer specifically formulated for acid loving plants.

Leaf spots on other plants

Find out what's wrong with your japanese skimmia

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 to all the leaves or if you see active webbing. It is normal to see a few small, natural imperfections on older foliage.

Stopping it coming back

Keep the plant in a cool, humid environment and avoid high soil pH to prevent nutrient issues.

Japanese skimmia: spots? Check yours with a photo

Every plant is a little different. Take a photo of your japanese skimmia 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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Questions people ask

Are these spots a fungus?
While fungal spots are possible, they are less common than pest damage or nutrient issues on this plant. Check for mites first.
Can I use regular fertilizer for the spots?
If the spots are due to chlorosis, you need an acidifying fertilizer. Regular fertilizer might not fix the pH issue.

Guides to these causes

More problems with Japanese skimmia

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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.