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Powdery Mildew in Mint

How to identify and treat powdery mildew in Mint.

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Mint care requirements

water
Regularly; keep soil consistently moist.
soil
Rich, moist soil. Tolerates most soil types.
light
Full sun to partial shade.
symptoms

Symptoms to look for in Mint

White, powdery coating on leaves, particularly common on mint in late summer, sometimes causing leaves to curl or yellow.

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Common causes in Mint

Mint is notably prone to powdery mildew, especially in humid conditions with poor airflow — its dense, spreading growth habit easily creates the still, humid microclimate this fungus favours.

healing

How to treat powdery mildew in Mint

Cut back affected growth hard — mint's vigorous regrowth means a hard prune both removes the infection and stimulates fresh, healthy growth.

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Preventing powdery mildew in Mint

Thin dense patches for airflow, water at the soil level rather than overhead, and don't be afraid to cut mint back hard periodically, which also helps prevent mildew buildup.