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Alder buckthorn · Frangula alnus

Why is my Alder buckthorn dropping its leaves?

It is less common for an Alder buckthorn to drop leaves, but it usually happens due to sudden changes in light or extreme fluctuations in soil moisture. Check the soil moisture first to ensure you are not overwatering or underwatering the plant.

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Check these first

  1. Check the soil moisture to see if it is waterlogged.
  2. Look for any recent changes in the plant's location.
  3. Examine the fallen leaves for any signs of pests or fungal spots.

Likely causes

  1. Sudden Light Change

    Possible

    How to tell: The plant drops leaves shortly after being moved to a new location with different light levels. The leaves may look healthy before they fall.

    What to do: Gradually acclimate the plant to new light conditions over 1 to 2 weeks. Keep it in a spot with bright, indirect light to avoid further stress.

  2. Overwatering

    Possible

    How to tell: Leaves turn yellow or brown before dropping, and the soil feels soggy or smells sour. This indicates the roots are struggling to breathe.

    What to do: Stop watering immediately and allow the top 3 inches of soil to dry out. Ensure your pot has proper drainage holes to let excess water escape.

Leaf drop in other plants

Find out what's wrong with your alder buckthorn

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 plant is losing a large number of leaves all at once or if the stems are turning black. It is normal for the plant to shed a few leaves during seasonal transitions.

Stopping it coming back

Maintain a steady environment and avoid moving the plant frequently. Always check the soil moisture before adding more water.

Alder buckthorn: leaf drop? Check yours with a photo

Every plant is a little different. Take a photo of your alder buckthorn 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

Can low light cause leaf drop?
Yes, if the plant does not get enough light, it will shed leaves to conserve energy. Move it to a brighter spot with indirect light.
Is it normal for my plant to drop leaves in winter?
Alder buckthorn is deciduous in many climates, so it is normal for it to drop leaves as it prepares for dormancy in winter. Reduce watering during this time.

More problems with Alder buckthorn

Back to the Alder buckthorn 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.