Skip to content
Pocket Botanist
Get the app

Judas tree · Cercis siliquastrum

Why are there spots on my Judas tree leaves?

Spots on your Judas tree leaves are usually caused by fungal issues or environmental stress. Take a close look at the spots to see if they are accompanied by small pink pustules on the wood.

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. Look for small pink pustules on the branches.
  2. Check if the spots are appearing on older or younger leaves.
  3. Examine the underside of the leaves for any pests or mold.

Likely causes

  1. Coral spot

    Most likely

    How to tell: Small pink or orange pustules appear on dead or dying branches, often leading to leaf spots nearby.

    What to do: Prune away all dead or diseased wood immediately. Dispose of the clippings away from the garden to prevent the fungus from spreading.

  2. Fungal leaf spot

    Possible

    How to tell: Dark or brown spots appear on the leaves, often with a yellow halo around them.

    What to do: Remove and destroy fallen leaves to reduce fungal spores. Ensure good air circulation around the tree by thinning out crowded branches.

Leaf spots on other plants

Find out what's wrong with your judas 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.

Download on the App StoreGet it on Google Play

When to worry

If the spots are spreading rapidly and causing significant leaf drop, it is a concern. A few spots late in the season are usually harmless.

Stopping it coming back

Keep the area around the base of the tree clean of debris and prune out dead wood annually.

Judas tree: spots? Check yours with a photo

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

Download on the App StoreGet it on Google Play

Get the app · Or check it from a photo now, free

Questions people ask

Are these spots harmful to the whole tree?
Leaf spots are usually cosmetic, but Coral spot can kill branches if left unchecked. Keep an eye on the wood health.
Should I spray my tree with fungicide?
Fungicides are rarely necessary for a healthy tree. Focus on pruning and proper watering instead.

Guides to these causes

More problems with Judas tree

Back to the Judas 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.