Plant leaves curling is a common sign that something isn’t quite right. Whether it’s your houseplants or garden plants, curled leaves are usually a response to stress.
This UK guide explains the most common causes of leaf curl and how to fix the problem quickly.
Is leaf curling always a bad sign?
Not always. Some plants naturally curl slightly, but sudden or severe curling usually means the plant is under stress.
Common causes of plant leaves curling
1. Underwatering
Plants curl their leaves to reduce moisture loss.
- Dry soil
- Crispy leaf edges
2. Overwatering
Roots suffocate and can’t absorb nutrients.
- Yellow leaves
- Soggy soil
3. Heat stress
High temperatures cause moisture loss.
4. Cold draughts
Cold air shocks leaves.
5. Pests
- Aphids
- Thrips
- Spider mites
6. Nutrient deficiency
Lack of magnesium or calcium.
How to fix curling leaves
Check watering
Water when top soil feels dry.
Move the plant
Avoid radiators and draughts.
Inspect for pests
Check under leaves weekly.
Feed lightly
Use balanced fertiliser.
Prevent future leaf curl
- Consistent watering
- Correct light levels
- Good airflow
- Regular leaf checks
FAQ
Will curled leaves recover?
Yes, once the cause is fixed.
Should I remove curled leaves?
Only if badly damaged.
Can pests cause leaf curl?
Yes – very commonly.
Related guides
- Why Is My Houseplant Dying?
- Why Are My Tomato Leaves Turning Yellow?
- How Often Should You Water Plants?
Helpful resources
Suggested tags: plant problems, leaf curl, houseplants
Suggested category: Gardening
