Will my curled leaves straighten out?

Usually, once a leaf has curled due to damage or stress, it will stay that way. Focus on keeping the new growth healthy and flat.

Can aphids kill my lime tree?

A small infestation is rarely fatal, but they can stunt growth and spread viruses. Treat them early to keep your tree growing strong.

Why are my Key lime tree leaves curling? Causes and fixes

Check these first

Inspect the undersides of curled leaves for aphids.
Check the soil moisture level with your finger.
Observe if the leaves flatten out when the sun goes down.

Likely causes

Aphids
Most likely
How to tell: You will see clusters of tiny green or black insects on the undersides of new leaves. They cause the foliage to twist and curl as they feed.
What to do: Spray the leaves with a strong stream of water to knock them off. Follow up with neem oil or insecticidal soap applied every 7 days until they are gone.
Heat Stress
Most likely
How to tell: The leaves curl inward during the hottest part of the day to conserve moisture. If they flatten out at night, the plant is just reacting to the sun.
What to do: Ensure your tree gets deep waterings every 3 to 7 days. If the pot is in a very hot spot, consider moving it to a location with slight afternoon shade.

Curling leaves on other plants

Find out what's wrong with your key lime

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.

When to worry

Worry if the curling is accompanied by sticky residue or yellowing. It is normal for leaves to curl slightly during extreme heat waves.

Stopping it coming back

Keep your tree healthy with consistent watering and check for pests weekly.

Key lime: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your key lime 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.

Get the app · Or check it from a photo now, free

Questions people ask

Will my curled leaves straighten out?: Usually, once a leaf has curled due to damage or stress, it will stay that way. Focus on keeping the new growth healthy and flat.
Can aphids kill my lime tree?: A small infestation is rarely fatal, but they can stunt growth and spread viruses. Treat them early to keep your tree growing strong.

Guides to these causes

Aphids

Why are my Key lime tree leaves curling?