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Bunchberry · Cornus canadensis

Why are there spots on my Bunchberry leaves?

Bunchberry is prone to fungal leaf spot when the air stays damp and stagnant. Check the foliage for discoloration to see if a fungus is taking hold.

Not sure it's this? Check a photo of your plant for free

spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Inspect the undersides of the leaves for fungal growth.
  2. Check if the soil is staying soggy for more than a few days.
  3. Look for nearby plants that might be blocking airflow.

Likely causes

  1. Fungal Leaf Spot

    Most likely

    How to tell: You will see brown or black spots with yellow halos on the leaves. These often appear after long periods of rain or high humidity.

    What to do: Remove and destroy the affected leaves immediately to stop the spread. Improve airflow around the plant by thinning out nearby dense vegetation. Avoid overhead watering to keep the leaves dry.

  2. Excessive Humidity

    Possible

    How to tell: The plant looks generally unhappy with dark, soft spots appearing on the foliage. This happens when the soil and air stay too wet for too long.

    What to do: Ensure your Bunchberry is planted in well draining soil. If the area is naturally swampy, consider transplanting it to a slightly higher spot.

Leaf spots on other plants

Find out what's wrong with your bunchberry

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 spots spread rapidly to the stems or cause the entire leaf to collapse. A few small spots are common in a wet spring.

Stopping it coming back

Water at the base of the plant rather than over the leaves, and ensure the site has good natural air circulation.

Bunchberry: spots? Check yours with a photo

Every plant is a little different. Take a photo of your bunchberry 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 the spots go away on their own?
No, the damaged tissue will not heal. You must remove the infected leaves to keep the plant healthy.
Can I use a fungicide?
It is usually not necessary for Bunchberry. Better cultural practices like pruning and proper watering are more effective.

Guides to these causes

More problems with Bunchberry

Back to the Bunchberry 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.