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Common hackberry · Celtis occidentalis

Why is my hackberry tree losing its leaves?

It is less common for a healthy hackberry to drop leaves during the growing season, so this usually points to environmental stress. Check the soil moisture levels first to see if the tree is either too dry or sitting in standing water.

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Check these first

  1. Feel the soil moisture at a depth of 4 inches.
  2. Inspect the leaves for signs of pests or fungal spots.
  3. Check the base of the trunk for any physical damage.

Likely causes

  1. Drought stress

    Most likely

    How to tell: Leaves may turn yellow or brown at the edges before falling off during hot, dry spells. The soil will feel bone dry several inches down.

    What to do: Water the tree deeply at the base once every 7 to 14 days. Ensure the water reaches 12 inches deep into the soil to support the roots.

  2. Extreme heat

    Possible

    How to tell: Leaves drop suddenly during record heat waves even if the soil is moist. The tree is simply trying to conserve energy.

    What to do: Apply a 3 inch layer of organic mulch around the base to keep the roots cool. Avoid fertilizing during these high heat periods.

Leaf drop in 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

It is normal for a hackberry to drop leaves in late autumn as part of its natural cycle. Worry if you see significant leaf loss in midsummer.

Stopping it coming back

Maintain a consistent watering schedule during the first 3 years of the tree's life to help it establish a strong root system.

Common hackberry: leaf drop? 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 my tree die if it loses leaves in summer?
Usually not, as the tree is likely just protecting itself from stress. It will often recover once the weather cools or moisture levels stabilize.
Should I rake up the fallen leaves?
Yes, it is best to remove fallen leaves to prevent the buildup of fungal spores or overwintering 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.