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field woodrush · Luzula campestris

What are these spots on my field woodrush?

Spots on field woodrush are often caused by rust fungus, which thrives in damp, stagnant air. Check the undersides of the leaves for orange or brown powdery patches.

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spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Look closely at the leaves for orange or brown powder.
  2. Check if the plant is crowded by other foliage.
  3. Feel if the leaves stay wet for long periods.

Likely causes

  1. Rust Fungus

    Most likely

    How to tell: Small orange or brown pustules appear on the leaves.

    What to do: Remove the infected leaves immediately to stop the spread. Improve airflow around the plant by moving it to a spot with better ventilation.

  2. Water on Leaves

    Possible

    How to tell: Small dark spots appear where water droplets sat for too long.

    What to do: Water at the base of the plant rather than overhead. This keeps the foliage dry and prevents fungal growth.

Leaf spots on other plants

Find out what's wrong with your field woodrush

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

If the spots cover a large portion of the plant, it is serious and requires immediate pruning. Small, isolated spots are manageable with better care.

Stopping it coming back

Keep the leaves dry when watering and ensure the plant has plenty of space for air to circulate.

Field woodrush: spots? Check yours with a photo

Every plant is a little different. Take a photo of your field woodrush 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, fungal spots usually need intervention. Removing the affected parts is the best way to stop the spread.
Can I use a fungicide?
You can use a mild organic fungicide if the infection is widespread. However, improving airflow is more effective for long term health.

Guides to these causes

More problems with field woodrush

Back to the field woodrush 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.