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Common dogwood · Cornus sanguinea

Why is my Cornus sanguinea losing its leaves?

It is less common for this dogwood to drop leaves prematurely, which usually happens due to severe drought or fungal infection. Check the leaves for spots or white powder to rule out common diseases first.

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Check these first

  1. Look for white powdery spots on the leaves.
  2. Check for brown or black spots that might indicate fungal infection.
  3. Assess the soil to see if it has been dry for too long.

Likely causes

  1. Severe Drought

    Possible

    How to tell: Leaves turn yellow or brown and fall off rapidly during a dry spell. The plant sheds foliage to conserve water for its survival.

    What to do: Water the plant deeply and consistently every 7 to 14 days. Apply a thick layer of mulch to help the soil retain moisture.

  2. Powdery Mildew

    Possible

    How to tell: A white, dusty coating appears on the leaves before they yellow and drop. This is common in humid, stagnant air conditions.

    What to do: Improve air circulation around the plant by thinning out nearby vegetation. You can use a fungicide spray if the infection is widespread.

Leaf drop in other plants

Find out what's wrong with your common dogwood

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 leaf drop is sudden and affects a large portion of the plant. Normal seasonal leaf drop occurs in autumn as the plant prepares for winter.

Stopping it coming back

Keep the area around the base clean of debris and ensure good airflow to prevent fungal growth. Water at the base of the plant rather than overhead to keep leaves dry.

Common dogwood: leaf drop? Check yours with a photo

Every plant is a little different. Take a photo of your common dogwood 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 dogwood grow back after losing leaves?
If the cause is addressed, the plant will usually produce new growth in the next season. Keep providing proper care to help it recover.
Is leaf drop always a disease?
No, it is often a stress response to environmental changes like drought or extreme heat. Always check the soil and light conditions before assuming a disease.

Guides to these causes

More problems with Common dogwood

Back to the Common dogwood 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.