Will my curled leaves straighten out?

Usually, leaves that have been severely distorted by aphids will not return to their original shape. Focus on keeping the new growth healthy and flat.

Can I just cut off the curled leaves?

Yes, you can prune away heavily damaged leaves to improve the look of the plant. Just make sure to use clean, sharp shears.

Siebold's elderberry: curling leaves, causes and fixes

Check these first

Inspect the undersides of the curling leaves for aphids.
Check if the soil is dry to the touch.
Observe if the leaves flatten out when the sun goes down.

Likely causes

Aphid infestation
Most likely
How to tell: You will see small, soft bodied insects clustering on the undersides of new leaves or near the tips. The leaves often look puckered or distorted as the aphids feed.
What to do: Spray the leaves with a strong stream of water to knock the bugs off. If they persist, apply insecticidal soap or neem oil every 5 to 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 trying to stay cool.
What to do: Move your plant to a spot with partial shade during the afternoon. Ensure you water deeply every 3 to 7 days so the roots stay hydrated.

Curling leaves on other plants

Find out what's wrong with your siebold's elderberry

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 leaves stay curled even when the plant is cool and well watered. It is normal for leaves to curl slightly during extreme heat waves.

Stopping it coming back

Keep your elderberry healthy with consistent watering and check the new growth for pests every week.

Siebold's elderberry: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your siebold's elderberry 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, leaves that have been severely distorted by aphids will not return to their original shape. Focus on keeping the new growth healthy and flat.
Can I just cut off the curled leaves?: Yes, you can prune away heavily damaged leaves to improve the look of the plant. Just make sure to use clean, sharp shears.

Guides to these causes

Aphids

Why are my Siebold's elderberry leaves curling?

Check these first

Not sure what's wrong with your siebold's elderberry?