Pocket Botanist
Check these first
- Observe how much light the plant receives daily.
- Check if the plant is leaning toward a window or light source.
- Count how many plants are in the container.
Likely causes
Insufficient light
Most likelyHow to tell: The stems are long and thin with large gaps between the leaves. The plant leans heavily toward the nearest light source.
What to do: Move the container to a spot with full sun or bright indirect light. Ensure it receives at least 6 hours of light daily to keep the stems sturdy.
Crowding
PossibleHow to tell: This is less common for this plant, as it usually spreads naturally, but it can happen if too many plants are packed into a small container. The stems compete for light and become thin.
What to do: Thin out the plants by removing excess stems to give the remaining ones more space. This allows light to reach the base of the plant more effectively.
Find out what's wrong with your floating sweet-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
Leggy growth is not a sign of disease but rather a response to environmental conditions. It is normal for the plant to stretch slightly during the darker winter months.
Stopping it coming back
Provide consistent, bright light throughout the growing season to maintain a dense and healthy habit.
Floating sweet-grass: leggy growth? Check yours with a photo
Every plant is a little different. Take a photo of your floating sweet-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
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Questions people ask
- Should I prune the long stems?
- Yes, you can trim back the leggy stems to encourage the plant to grow fuller. Use clean scissors to cut the stems back to the desired height.
- Will my plant bloom if it is leggy?
- Floating sweet-grass does produce small, grass-like flowers, but it needs plenty of light to bloom. A leggy plant is unlikely to flower until it receives better light conditions.
More problems with floating sweet-grass
Back to the floating sweet-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.