Check these first
- Observe how many hours of direct sun the plant gets.
- Check if the plant is being shaded by taller neighbors.
- Look for new growth to see if it is stretching.
Likely causes
Insufficient Light
Most likelyHow to tell: The stems are long with large gaps between the tiny leaves.
What to do: Move your plant to a spot that receives full, direct sun for at least 6 to 8 hours a day. If you are growing indoors, place it in your brightest south facing window.
Lack of Pruning
PossibleHow to tell: The plant looks sparse and woody at the center.
What to do: Trim back the long stems by one third to encourage bushier growth. Regular light pruning keeps the plant tight and healthy.
Find out what's wrong with your mother of thyme
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 normal for the plant to spread, but it should not look thin or weak.
Stopping it coming back
Give your plant plenty of direct sun and trim it back after it finishes flowering.
Mother of Thyme: leggy growth? Check yours with a photo
Every plant is a little different. Take a photo of your mother of thyme 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
- Will my plant fill back in after I prune it?
- Yes, pruning stimulates new growth from the base, which will help the plant look fuller over time.
- Can I grow Mother of Thyme in the shade?
- No, this plant requires full sun to maintain its compact, creeping habit.
More problems with Mother of Thyme
Back to the Mother of Thyme 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.

