Pocket Botanist
Check these first
- Assess the light levels in your plant's current spot.
- Check if the stems are reaching toward a light source.
- Look for signs of new growth near the base.
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 window.
What to do: Move the pot to a spot with at least 6 hours of direct or bright indirect sunlight. If growing indoors, place it on a south facing windowsill. You can trim back the long stems to encourage bushier growth.
Lack of pruning
Most likelyHow to tell: The plant is tall and sparse even though it is in a bright location. It looks overgrown and top heavy.
What to do: Cut back the stems by one third to promote new branching. Regular harvesting of the leaves will keep the plant compact and healthy.
Find out what's wrong with your water mint
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.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
When to worry
It is not a health crisis, but it makes the plant look untidy. It is normal for the plant to stretch slightly as it prepares to flower in late summer.
Stopping it coming back
Keep your Water Mint in a bright location and harvest it regularly to maintain a dense shape.
Water Mint: leggy growth? Check yours with a photo
Every plant is a little different. Take a photo of your water mint 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 fix leggy stems?
- You cannot make existing long stems shorter, but you can prune them back to encourage new, compact growth. The plant recovers quickly from a hard trim.
- Does Water Mint need full sun?
- It thrives in full sun to partial shade. More light generally results in a sturdier, less leggy plant.
More problems with Water Mint
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.