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Brown Spots in Hollyhock
verifiedReviewed by the GreenScout Team
Hollyhocks are iconic tall biennials with large, showy flowers that bloom in a wide range of colors along sturdy vertical stems
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Hollyhock care requirements
These care conditions are most relevant to brown spots in Hollyhock. Check each one as a potential cause.
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Light
Full sun; requires 6+ hours of direct sunlight daily for optimal growth and flowering
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Water
Water regularly; maintain evenly moist soil during growing season and reduce in dormancy
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Humidity
Low to moderate humidity; ensure good air circulation to prevent rust and mildew
symptoms
Symptoms to look for in Hollyhock
- fiber_manual_recordBrown patches on leaves
- fiber_manual_recordCrispy brown areas
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Common causes in Hollyhock
- fiber_manual_recordFungal leaf spot
- fiber_manual_recordSunburn
- fiber_manual_recordBacterial blight
- fiber_manual_recordCold damage
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How to diagnose brown spots in Hollyhock
Sunburn: bleached patches facing light source. Fungal: brown spots with rings. Bacterial: water-soaked spots turning brown.
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How to treat brown spots in Hollyhock
Remove affected leaves. Treat with appropriate fungicide or bactericide. Adjust light exposure.
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Preventing brown spots in Hollyhock
Avoid direct midday sun. Improve air circulation. Water at soil level.