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Judas tree · Cercis siliquastrum

Why are my Judas tree leaves turning yellow?

It is less common for a Judas tree to have yellow leaves, so this usually points to a problem with soil moisture or nutrient uptake. Check the soil moisture levels around the base of your tree first.

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yellow leaves on a plant
Photo: Trio3D, CC BY-SA 4.0

Check these first

  1. Feel the soil 2 inches deep to see if it is soggy.
  2. Inspect the leaves for signs of pests like aphids.
  3. Check the base of the tree for standing water.

Likely causes

  1. Overwatering

    Possible

    How to tell: The leaves turn yellow and feel soft or limp to the touch. The soil around the roots stays soggy for days after watering.

    What to do: Stop watering immediately and let the top 3 inches of soil dry out completely. Ensure the planting site has good drainage and is not sitting in a low spot where water collects.

  2. Nutrient deficiency

    Possible

    How to tell: Leaves turn yellow while the veins remain green, often starting on older growth. This happens when the soil pH is too high or nutrients are depleted.

    What to do: Apply a balanced, slow release fertilizer in early spring. If the soil pH is above 7.5, add organic matter like compost to help balance the soil chemistry.

Yellow leaves 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.

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When to worry

Be concerned if the yellowing spreads rapidly across the whole canopy. It is normal for a few inner leaves to yellow and drop as the tree ages.

Stopping it coming back

Maintain consistent moisture without waterlogging the roots and mulch annually with organic matter.

Judas tree: yellow leaves? 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

Should I pick off the yellow leaves?
Yes, you can remove them to keep the tree looking tidy. It will not hurt the tree to take them off.
Can too much sun cause yellowing?
Judas trees love full sun, but extreme heat can sometimes stress the leaves. Ensure the tree gets enough water during peak summer heat.

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.