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Japanese holly · Ilex crenata

Why are my Japanese holly leaves curling?

It is less common for Japanese holly to have curling leaves, but it usually happens due to moisture stress or extreme heat. Check the soil moisture level first to see if the plant is too dry or sitting in soggy soil.

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curling leaves on a plant
Photo: Freshclover, CC BY-SA 4.0

Check these first

  1. Check the soil moisture with your finger.
  2. Feel the leaves to see if they are brittle or soft.
  3. Inspect the base of the plant for standing water.

Likely causes

  1. Drought stress

    Most likely

    How to tell: The leaves curl inward and may feel dry or brittle to the touch. The soil will be completely dry several inches down.

    What to do: Water the plant deeply until the soil is moist 1 to 2 inches deep. Apply a layer of mulch around the base to help retain moisture in the soil.

  2. Root rot

    Possible

    How to tell: The leaves curl and turn yellow or brown, and the plant may look wilted even if the soil is wet. This is often caused by poor drainage.

    What to do: Check the roots for mushy or black sections. If found, improve soil drainage by adding organic matter or moving the plant to a better spot.

Curling leaves on other plants

Find out what's wrong with your japanese holly

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

Worry if the curling is accompanied by yellowing or wilting that does not improve after watering. It is normal for leaves to curl slightly during a very hot afternoon.

Stopping it coming back

Maintain a consistent watering schedule and ensure the soil drains well so the roots never sit in water.

Japanese holly: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your japanese holly 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 fertilize a plant with curling leaves?
No, avoid fertilizing until you identify the cause. Adding fertilizer to a stressed plant can make the problem worse.
Is it normal for leaves to curl in winter?
Yes, some curling can occur in winter due to cold, dry winds. This is a protective response and usually resolves when the weather warms up.

Guides to these causes

More problems with Japanese holly

Back to the Japanese holly 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.