Do these plants flower?

Yes, they produce small white or pinkish flowers in the summer. They need full sun to bloom well.

Should I prune curled leaves?

Only prune them if they are brown and crispy. If they are just curled from heat, they will often flatten out once the plant is hydrated.

Why are my black bindweed leaves curling? Causes and fixes

Check these first

Feel the soil to see if it is dry and needs water.
Look at the undersides of the leaves for tiny insects.
Observe if the curling happens only during the hottest hours.

Likely causes

Heat Stress
Most likely
How to tell: The leaves curl inward during the hottest part of the day to conserve moisture. They usually look limp and thin.
What to do: Provide a bit of afternoon shade if temperatures exceed 90 degrees. Water the plant deeply in the morning so it is hydrated before the heat peaks.
Aphid Infestation
Possible
How to tell: You will see tiny green or black insects clustered on the undersides of the leaves. The leaves may look distorted or puckered.
What to do: Spray the leaves with a strong stream of water to knock the bugs off. Use insecticidal soap once a week if the infestation persists.

Curling leaves on other plants

Find out what's wrong with your black bindweed

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

Curling during the heat of the day is a normal defense mechanism. If the leaves stay curled at night or show brown edges, it is a sign of stress.

Stopping it coming back

Keep the soil consistently moist and provide a consistent watering schedule. Monitor the plant regularly for early signs of pests.

Black bindweed: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your black bindweed 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

Do these plants flower?: Yes, they produce small white or pinkish flowers in the summer. They need full sun to bloom well.
Should I prune curled leaves?: Only prune them if they are brown and crispy. If they are just curled from heat, they will often flatten out once the plant is hydrated.

Guides to these causes

Aphids

Why are my black bindweed leaves curling?