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Marsh violet · Viola palustris

Why are there holes in my Marsh violet leaves?

Marsh violets love moisture, but that damp environment also attracts hungry garden visitors. Slugs are the most common culprit for chewed foliage on this plant. Check the undersides of your leaves and the soil surface for these slimy pests.

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

pests on a plant
Photo: Jules Verne Times Two, CC BY-SA 4.0

Check these first

  1. Inspect the undersides of the leaves for small insects.
  2. Look for slime trails on the soil or leaves.
  3. Check the plant at night with a flashlight.

Likely causes

  1. Slugs

    Most likely

    How to tell: You will see irregular holes in the leaves and shiny slime trails left behind on the foliage or soil.

    What to do: Pick them off by hand in the evening when they are active. You can also place a shallow dish of beer near the plant to trap them or use iron phosphate pellets around the base.

  2. Aphids

    Possible

    How to tell: Tiny green or black insects cluster on the new growth or flower buds. They cause the leaves to look distorted or sticky.

    What to do: Spray the plant with a gentle stream of water to knock them off. If they persist, apply insecticidal soap once a week until they are gone.

Pests on other plants

Find out what's wrong with your marsh violet

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 holes are annoying but rarely kill the plant. If the entire plant is being defoliated, you need to act immediately.

Stopping it coming back

Keep the area around your violet clear of debris and leaf litter where slugs like to hide. Maintain good airflow to discourage pests.

Marsh violet: pests? Check yours with a photo

Every plant is a little different. Take a photo of your marsh violet 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 slugs kill my Marsh violet?
Usually not, but they can make it look very ragged. If they eat all the leaves, the plant will struggle to photosynthesize and may die.
Can I use chemical pesticides?
It is better to avoid harsh chemicals. Stick to organic methods like handpicking or insecticidal soap to keep your garden safe.

Guides to these causes

More problems with Marsh violet

Back to the Marsh violet 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.