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Common hackberry · Celtis occidentalis

Why are my hackberry tree's leaves turning yellow?

It is less common for a healthy hackberry to have yellow leaves, so this usually points to a nutrient deficiency or poor soil drainage. Check the soil moisture and color of the veins first.

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

Check these first

  1. Inspect the leaves to see if the veins are still green.
  2. Check the soil moisture level by digging a few inches down.
  3. Look for signs of standing water near the trunk.

Likely causes

  1. Iron Chlorosis

    Most likely

    How to tell: The leaves turn yellow while the veins remain bright green. This happens when the tree cannot absorb enough iron from the soil.

    What to do: Apply a chelated iron supplement to the soil around the base of the tree. Follow the package instructions for the specific dosage based on the trunk diameter. Ensure the soil pH is not too high, as alkaline soil prevents iron uptake.

  2. Overwatering

    Possible

    How to tell: The leaves turn yellow and may feel soft or mushy. The soil around the base stays constantly wet and smells swampy.

    What to do: Stop watering immediately and allow the top 3 inches of soil to dry out completely. Ensure the area around the tree has proper drainage so water does not pool. Only water again when the soil feels dry to the touch.

Yellow leaves on other plants

Find out what's wrong with your common hackberry

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 entire canopy. It is normal for a few inner leaves to yellow and drop during the heat of late summer.

Stopping it coming back

Maintain a consistent watering schedule and test your soil pH to ensure it stays in the slightly acidic to neutral range.

Common hackberry: yellow leaves? Check yours with a photo

Every plant is a little different. Take a photo of your common hackberry 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

Will yellow leaves turn green again?
No, leaves that have turned yellow will not return to green. Focus on keeping the new growth healthy.
Can insects cause yellow leaves?
Yes, heavy infestations of sap sucking insects can cause yellowing. Check the undersides of leaves for tiny pests.

Guides to these causes

More problems with Common hackberry

Back to the Common hackberry 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.