Will my leaves uncurl once the pests are gone?

Usually, the damaged leaves will remain curled even after the insects are removed. Focus on keeping the new, emerging growth healthy and flat.

Does this plant need more water when leaves curl?

Only if the top inch of soil is dry. Overwatering can cause root issues that mimic drought stress, so always check the soil before adding more water.

Why are my Phacelia distans leaves curling? Causes and fixes

Check these first

Inspect the undersides of the curled leaves for tiny bugs.
Check the soil moisture level to see if the plant is thirsty.
Observe if the curling happens only during the hottest part of the day.

Likely causes

Aphids
Most likely
How to tell: You will see clusters of tiny green or black insects on the undersides of leaves or near the new growth. They suck sap, which causes the foliage to twist and curl as it develops.
What to do: Spray the plant with a strong stream of water to knock them off. If they persist, apply insecticidal soap once a week until the infestation clears.
Heat Stress
Possible
How to tell: The leaves look wilted and curl inward during the hottest part of the day even if the soil is moist. This is the plant trying to conserve water in extreme temperatures.
What to do: Provide a light shade cloth during the peak afternoon heat if temperatures exceed 90 degrees. Ensure the soil stays consistently moist but not soggy during these hot spells.

Curling leaves on other plants

Find out what's wrong with your distant phacelia

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 stunted growth that does not recover overnight. It is normal for leaves to curl slightly in extreme heat as a temporary defense mechanism.

Stopping it coming back

Keep your plants healthy with regular water and good airflow to discourage pest infestations. Monitor your garden weekly so you can catch small groups of aphids before they spread.

Distant phacelia: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your distant phacelia 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.

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Questions people ask

Will my leaves uncurl once the pests are gone?: Usually, the damaged leaves will remain curled even after the insects are removed. Focus on keeping the new, emerging growth healthy and flat.
Does this plant need more water when leaves curl?: Only if the top inch of soil is dry. Overwatering can cause root issues that mimic drought stress, so always check the soil before adding more water.

Guides to these causes

Aphids

Why are my Phacelia distans leaves curling?