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Persian silk tree · Albizia julibrissin

Why are there spots on my Persian silk tree leaves?

It is less common for this tree to develop spots, which are usually caused by fungal infections or environmental stress. Check the undersides of the leaves first to rule out pests or fungal spores.

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spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Inspect the leaves for fungal growth or insects.
  2. Check if the spots are on new or old growth.
  3. Assess the light exposure to see if it changed recently.

Likely causes

  1. Fungal Leaf Spot

    Possible

    How to tell: Small brown or black spots appear on the leaves, sometimes with a yellow halo.

    What to do: Remove and dispose of any infected leaves to prevent the spread of spores. Ensure the tree has plenty of space and airflow to keep the foliage dry.

  2. Sunscald

    Possible

    How to tell: Bleached or scorched spots appear on leaves that were suddenly exposed to intense sun.

    What to do: Acclimate the tree slowly to brighter light if it has been in the shade. If the damage is done, the tree will eventually grow new, adapted leaves.

Leaf spots on other plants

Find out what's wrong with your persian silk tree

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 or causing the leaves to drop prematurely. A few spots here and there are usually harmless.

Stopping it coming back

Water at the base of the tree rather than overhead to keep the leaves dry and discourage fungal growth.

Persian silk tree: spots? Check yours with a photo

Every plant is a little different. Take a photo of your persian silk tree 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 contagious?
If they are fungal, they can spread to other leaves on the same tree. Keep the area clean and remove fallen debris.
Should I use a fungicide?
Usually, good cultural practices like proper watering and airflow are enough. Only use a fungicide if the infection is severe and persistent.

Guides to these causes

More problems with Persian silk tree

Back to the Persian silk tree 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.