Pocket Botanist
Check these first
- Observe how many hours of light the plant gets daily.
- Rotate the pot every week to ensure even growth.
- Check if the plant is crowded by other objects.
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 plant to a location with bright, indirect light. If you are growing indoors, a south or west facing window is usually best.
Lack of pruning
PossibleHow to tell: The plant is tall and sparse even though it gets decent light. It has not been harvested or trimmed recently.
What to do: Pinch back the top stems to encourage the plant to grow bushier. Regular harvesting of the top leaves will keep the plant compact.
Find out what's wrong with your mélisse
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
Leggy growth is rarely fatal but it makes the plant look weak. It is normal for the plant to stretch slightly if it is reaching for the sun.
Stopping it coming back
Harvest your lemon balm regularly and ensure it gets at least 6 hours of bright light every day.
Mélisse: leggy growth? Check yours with a photo
Every plant is a little different. Take a photo of your mélisse 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 back a leggy plant all at once?
- It is better to prune about one third of the plant at a time to avoid stressing it too much.
- Will the stems fill back in?
- The existing long stems will not grow leaves where they are bare, but pruning will encourage new, fuller growth from the base.
More problems with Mélisse
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.