Pocket Botanist
Check these first
- Check if the plant is leaning toward a light source.
- Look for signs of rapid, weak growth.
- Assess the amount of shade the plant receives.
Likely causes
Lack of Sunlight
Most likelyHow to tell: The blades are thin, pale, and leaning toward the nearest light source.
What to do: Relocate the plant to a spot with full, direct sun. This grass requires strong light to maintain its upright, architectural form.
Over Fertilization
PossibleHow to tell: The grass grows very fast and flops over under its own weight.
What to do: Avoid adding compost or fertilizer to the soil. Let the plant grow in its natural, slower pace.
Find out what's wrong with your feather reed grass
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
Some flopping is normal after heavy rain or wind. Worry if the plant is consistently weak and unable to stand upright on calm days.
Stopping it coming back
Provide full sun and avoid adding extra nutrients to the soil.
Feather reed grass: leggy growth? Check yours with a photo
Every plant is a little different. Take a photo of your feather reed grass 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.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
Get the app · Or check it from a photo now, free
Questions people ask
- Can I prune leggy grass?
- You can cut back the leggy growth to encourage a fresh start. Do this in early spring before new growth appears.
- Will it stand up on its own again?
- If the legginess is due to low light, it will not stand up until it is moved to a sunnier spot. Once moved, the new growth should be stronger.
More problems with Feather reed grass
Back to the Feather reed grass 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.