What causes leaf spot in Aquilegia?

Fungal pathogens spread by water splash or wind Bacterial infection, especially in warm, wet conditions Overhead watering keeping foliage wet Poor air circulation Infected plant debris left around the plant

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Leaf Spot in Aquilegia

verifiedReviewed by the GreenScout Team

An elegant perennial featuring distinctive nodding flowers with graceful, backward-projecting spurs in shades of blue, purple, pink, white, or bicolor combinations. Circular or irregular spots on leaves caused by fungal or bacterial infection. Spots may be brown, black, yellow, or tan, often with a yellow halo.

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Aquilegia care requirements

These care conditions are most relevant to leaf spot in Aquilegia. Check each one as a potential cause.

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Light

Partial shade to dappled sunlight (3–6 hours); tolerates full sun in cooler climates; afternoon shade in hot regions

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Water

Keep soil consistently moist during growing season; avoid waterlogging; reduce watering after flowering

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Soil

Well-draining, fertile soil rich in organic matter; prefers slightly acidic to neutral pH (6.0–7.0); mulch to retain moisture

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Symptoms to look for in Aquilegia

fiber_manual_recordCircular or angular spots on leaves in shades of brown, black, or tan
fiber_manual_recordYellow halo surrounding the spots
fiber_manual_recordSpots merging in severe infections, causing large dead areas
fiber_manual_recordPremature leaf drop in badly affected plants

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Common causes in Aquilegia

fiber_manual_recordFungal pathogens spread by water splash or wind
fiber_manual_recordBacterial infection, especially in warm, wet conditions
fiber_manual_recordOverhead watering keeping foliage wet
fiber_manual_recordPoor air circulation
fiber_manual_recordInfected plant debris left around the plant

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How to diagnose leaf spot in Aquilegia

Examine spot edges — fungal leaf spot often has a dark border; bacterial spots may have a water-soaked appearance. Send a sample for lab identification if treatment is not working.

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How to treat leaf spot in Aquilegia

Remove and dispose of affected leaves. Improve air circulation. Apply a copper-based fungicide or neem oil spray. Avoid wetting foliage when watering.

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Preventing leaf spot in Aquilegia

Water at the base rather than overhead. Space plants adequately for air flow. Clear fallen leaves regularly. Choose resistant varieties where available.