Are aphids harmful to my willow?

They can weaken the plant and cause leaf distortion. It is best to manage them as soon as you spot them.

Does my willow need more water when it is hot?

Absolutely. High temperatures cause faster evaporation, so check the soil daily and water whenever the surface feels slightly dry.

Why are my Salix cinerea leaves curling? Causes and fixes

Check these first

Inspect the undersides of the leaves for small insects.
Check if the soil is dry to the touch.
Feel the leaves to see if they are brittle or soft.

Likely causes

Aphid infestation
Possible
How to tell: You see small, soft bodied insects on the undersides of leaves or on new growth. The leaves may look distorted or sticky.
What to do: Spray the leaves with a gentle stream of water to knock the aphids off. For persistent issues, use insecticidal soap every 5 to 7 days.
Heat stress
Possible
How to tell: The leaves curl inward during the hottest part of the day to conserve moisture. They usually recover once the temperature drops.
What to do: Increase your watering frequency during heat waves to keep the soil damp. Provide some afternoon shade if the sun is too intense.

Curling leaves on other plants

Find out what's wrong with your grey willow

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 yellowing or brown spots. It is normal for leaves to curl slightly during extreme heat to protect themselves.

Stopping it coming back

Keep the plant well watered and inspect the new growth weekly for any signs of aphids.

Grey willow: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your grey willow 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 willow?: They can weaken the plant and cause leaf distortion. It is best to manage them as soon as you spot them.
Does my willow need more water when it is hot?: Absolutely. High temperatures cause faster evaporation, so check the soil daily and water whenever the surface feels slightly dry.

Guides to these causes

Aphids

Why are my Salix cinerea leaves curling?

Check these first

Not sure what's wrong with your grey willow?