Are aphids harmful to my plant?

They can stunt growth and spread viruses if left unchecked. It is best to manage them as soon as you see them.

Will the leaves uncurl once the aphids are gone?

The damaged leaves will likely stay curled, but new growth should appear healthy. You can trim off the worst affected leaves to improve the look.

Why are my wood speedwell leaves curling? Causes and fixes

Check these first

Inspect the undersides of curled leaves for aphids.
Check if the soil is dry to the touch.
Look for signs of heat damage on the leaf edges.

Likely causes

Aphid infestation
Most likely
How to tell: New leaves appear curled or distorted, and you may see small green or black insects on the stems. These pests suck sap from the tender new growth.
What to do: Spray the leaves with a gentle stream of water to knock the aphids off. For persistent cases, apply insecticidal soap once a week until they are gone.
Heat stress
Possible
How to tell: The leaves curl inward during the hottest part of the day to conserve moisture. This is a common reaction to high temperatures and dry air.
What to do: Water the plant deeply to ensure the roots are hydrated. Provide temporary shade during the afternoon peak heat if possible.

Curling leaves on other plants

Find out what's wrong with your wood speedwell

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

If the curling is accompanied by yellowing or sticky residue, take action immediately. It is normal for leaves to curl slightly during a heatwave and recover by evening.

Stopping it coming back

Keep the plant well watered and monitor for pests during the spring growth spurt.

Wood speedwell: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your wood speedwell 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

Are aphids harmful to my plant?: They can stunt growth and spread viruses if left unchecked. It is best to manage them as soon as you see them.
Will the leaves uncurl once the aphids are gone?: The damaged leaves will likely stay curled, but new growth should appear healthy. You can trim off the worst affected leaves to improve the look.

Guides to these causes

Aphids

Why are my wood speedwell leaves curling?

Check these first

Not sure what's wrong with your wood speedwell?