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Salmonberry · Rubus spectabilis

Why are there orange spots on my Salmonberry leaves?

Seeing orange spots on your Salmonberry usually points to a fungal rust infection. This is common in damp, humid conditions, so check your plant's airflow first.

Not sure it's this? Check a photo of your plant for free

spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Inspect the undersides of the leaves for orange powder.
  2. Remove any infected foliage from the plant.
  3. Clear away dead leaves from the base of the plant.

Likely causes

  1. Orange Rust Fungus

    Most likely

    How to tell: You will see bright orange or yellow powdery pustules on the undersides of the leaves. The leaves may eventually curl or drop prematurely.

    What to do: Prune away and destroy any heavily infected leaves or canes immediately. Do not compost this material. Improve air circulation by thinning out crowded branches.

  2. Leaf Spot Disease

    Possible

    How to tell: These appear as dark brown or black spots with lighter centers. They often occur when the foliage stays wet for too long.

    What to do: Water at the base of the plant rather than overhead to keep the leaves dry. Remove fallen leaves from the ground to prevent spores from splashing back up.

Leaf spots on other plants

Find out what's wrong with your salmonberry

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. A few small spots are manageable with good garden hygiene.

Stopping it coming back

Keep the area around your Salmonberry clear of debris and ensure it has enough space for air to move freely between branches.

Salmonberry: spots? Check yours with a photo

Every plant is a little different. Take a photo of your salmonberry 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

Can I save the leaves that have spots?
It is best to remove them. Once the fungus is established, the leaf will not recover and will only spread spores to healthy parts of the plant.
Will this kill my Salmonberry?
Usually no, but it can weaken the plant over time. Keeping the plant healthy with proper water and light helps it resist these infections.

Guides to these causes

More problems with Salmonberry

Back to the Salmonberry 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.