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Judas tree · Cercis siliquastrum

Why is my Judas tree dropping its leaves?

It is less common for a healthy Judas tree to drop leaves prematurely, so this usually indicates a significant environmental stress or a health issue. Check the branches for signs of fungal infection first.

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Check these first

  1. Inspect the branches for any signs of wilting or dieback.
  2. Check the soil to see if it has been too dry for too long.
  3. Look for pink pustules on the bark which indicate coral spot.

Likely causes

  1. Verticillium wilt

    Possible

    How to tell: Leaves wilt and drop suddenly, often on just one side of the tree. You may see dark streaks inside the wood if you cut a small twig.

    What to do: Prune out affected branches well below the damage, sterilizing your tools between cuts. Keep the tree healthy with proper water and avoid wounding the roots.

  2. Severe heat stress

    Possible

    How to tell: The leaves turn brown or yellow and fall off during a heatwave. The tree is shedding foliage to reduce water loss.

    What to do: Provide deep, slow watering at the base of the tree. Add a thick layer of mulch to insulate the root zone from the heat.

Leaf drop in 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.

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When to worry

Be very concerned if large sections of the tree lose leaves suddenly. It is normal for the tree to drop all its leaves in late autumn as part of its natural cycle.

Stopping it coming back

Keep the tree vigorous with proper watering and avoid damaging the roots during gardening work.

Judas tree: leaf drop? 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.

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Questions people ask

Is leaf drop always a sign of death?
Not necessarily, as it is often a defense mechanism against stress. If the tree is otherwise healthy, it will likely recover next season.
Does this tree flower?
Yes, it produces beautiful pink flowers directly on the branches in spring. It needs a sunny spot and a few years of growth to start blooming reliably.

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.