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Hare's tail cottongrass · Eriophorum vaginatum

Why is my Hare's tail cottongrass looking leggy?

Legginess in this plant is less common, usually caused by a lack of sufficient sunlight. Check your light levels to ensure it is getting enough direct sun.

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leggy growth on a plant
Photo: Rosser1954, CC BY-SA 4.0

Check these first

  1. Move the plant to a brighter spot.
  2. Check if other plants are shading it.
  3. Prune back the longest stems to encourage bushier growth.

Likely causes

  1. Insufficient light

    Most likely

    How to tell: The stems grow long, thin, and reach toward the nearest light source. The plant loses its dense, compact appearance.

    What to do: Move the plant to a location that receives full, direct sun for at least 6 to 8 hours a day. If indoors, use a high output grow light positioned close to the foliage.

  2. Overcrowding

    Possible

    How to tell: The plant is competing for light and space with other plants in the same container. The stems become stretched as they try to find room.

    What to do: Divide the plant into smaller clumps and repot them into separate containers. This gives each section enough room to grow properly.

Leggy growth in other plants

Find out what's wrong with your hare's tail cottongrass

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

Legginess is rarely fatal but indicates the plant is not thriving. It is normal for the plant to look a bit sparse after a long winter indoors.

Stopping it coming back

Keep the plant in full sun throughout the growing season to maintain a compact shape.

Hare's tail cottongrass: leggy growth? Check yours with a photo

Every plant is a little different. Take a photo of your hare's tail cottongrass 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

Does this plant flower?
Yes, it produces white, cotton like heads in the spring and summer. It needs full sun to bloom successfully.
Can I prune it to make it shorter?
Yes, you can trim back overgrown stems to encourage the plant to fill out again.

More problems with Hare's tail cottongrass

Back to the Hare's tail cottongrass 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.