Pocket Botanist
Check these first
- Assess how many hours of light the plant gets.
- Check if the plant is leaning toward a window.
- Measure the distance between leaf nodes.
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 light.
What to do: Move the plant to a brighter location with more indirect light. Rotate the pot weekly to encourage even growth.
High Temperatures
PossibleHow to tell: The plant grows very fast but the stems are weak and spindly.
What to do: Move the plant to a cooler area. Avoid placing it near heaters or in rooms that get very hot.
Find out what's wrong with your garlic mustard
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
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When to worry
Legginess is not fatal, but it makes the plant weak. It is normal for the plant to stretch slightly as it prepares to flower.
Stopping it coming back
Provide adequate light and keep the plant in a cool, stable environment.
Garlic mustard: leggy growth? Check yours with a photo
Every plant is a little different. Take a photo of your garlic mustard 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 the long stems?
- Yes, you can trim them back to encourage bushier growth. Just make sure to provide better light afterward.
- Will it grow back normal?
- It will grow new, stronger stems if you move it to a better spot.
More problems with Garlic mustard
Back to the Garlic mustard 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.