Are aphids harmful to my poppies?

Yes, they suck the sap and can stunt the growth of your flowers. They should be removed as soon as you spot them.

Should I cut off the curled leaves?

Only cut them off if they are heavily infested or turning brown. Otherwise, leave them so the plant can continue to photosynthesize.

Why are my poppy leaves curling? Causes and fixes

Check these first

Look closely at the undersides of curled leaves for tiny bugs.
Check if the leaves uncurl when the temperature drops at night.
Inspect the stems for sticky residue.

Likely causes

Aphids
Most likely
How to tell: You see clusters of tiny green or black insects on the stems and undersides of leaves. The leaves look distorted or curled as they feed.
What to do: Spray the plant with a strong stream of water to knock the aphids off. If they persist, apply insecticidal soap once a week for 3 weeks.
Heat Stress
Possible
How to tell: The leaves curl inward during the hottest part of the day to conserve moisture. They usually flatten out again once the sun goes down.
What to do: Provide a bit of afternoon shade if temperatures exceed 90 degrees. Ensure the plant is watered deeply in the morning to help it handle the heat.

Curling leaves on other plants

Find out what's wrong with your opium poppy

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 leaves remain curled even at night or show signs of yellowing, the plant is under significant stress. It is normal for leaves to curl slightly during extreme midday heat as a natural defense.

Stopping it coming back

Keep your plants healthy with proper spacing to allow airflow, which discourages aphid buildup.

Opium poppy: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your opium poppy 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 poppies?: Yes, they suck the sap and can stunt the growth of your flowers. They should be removed as soon as you spot them.
Should I cut off the curled leaves?: Only cut them off if they are heavily infested or turning brown. Otherwise, leave them so the plant can continue to photosynthesize.

Guides to these causes

Aphids

Why are my poppy leaves curling?