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White Avens · Geum canadense

What are these spots on my White Avens leaves?

Spots on White Avens are frequently caused by powdery mildew, a common fungal issue that thrives in stagnant air. Check the leaf surfaces for a white, dusty coating to confirm this.

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spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Check for a white powdery dust on the leaves.
  2. Look for dark spots with yellow rings.
  3. Ensure the plant has enough space for air to move around it.

Likely causes

  1. Powdery mildew

    Most likely

    How to tell: White, flour like patches appear on the top of leaves, often causing them to curl or distort.

    What to do: Improve air circulation by spacing plants further apart or moving them to a breezier spot. You can spray the foliage with a mixture of one tablespoon of baking soda in a gallon of water.

  2. Fungal leaf spot

    Possible

    How to tell: Dark brown or black circular spots with yellow halos appear on the foliage.

    What to do: Remove and dispose of the infected leaves immediately to stop the spread. Avoid overhead watering to keep the leaves dry.

Leaf spots on other plants

Find out what's wrong with your white avens

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

Small spots are manageable, but if the entire plant is covered in fungus, it may struggle to photosynthesize. Remove heavily infected foliage to save the rest of the plant.

Stopping it coming back

Water at the base of the plant rather than over the leaves, and provide good spacing for airflow.

White Avens: spots? Check yours with a photo

Every plant is a little different. Take a photo of your white avens 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

Is powdery mildew fatal?
It is rarely fatal if caught early, but it can weaken the plant over time if left untreated.
Can I use neem oil for spots?
Yes, neem oil is an effective organic treatment for many fungal issues on White Avens.

Guides to these causes

More problems with White Avens

Back to the White Avens 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.