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Brown Spots in Cauliflower

verifiedReviewed by the GreenScout Team

Cauliflower is a cool-season brassica that produces a dense head of edible flower buds called curds

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Cauliflower care requirements

These care conditions are most relevant to brown spots in Cauliflower. Check each one as a potential cause.

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Light
Full sun, minimum 6–8 hours daily for optimal head development
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Water
Keep soil consistently moist, providing 1.5–2 inches per week; avoid waterlogging which causes rot
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Humidity
Moderate humidity (50–70%); excessive moisture promotes fungal diseases on foliage
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Symptoms to look for in Cauliflower

  • fiber_manual_recordBrown patches on leaves
  • fiber_manual_recordCrispy brown areas
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Common causes in Cauliflower

  • 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 Cauliflower

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 Cauliflower

Remove affected leaves. Treat with appropriate fungicide or bactericide. Adjust light exposure.

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Preventing brown spots in Cauliflower

Avoid direct midday sun. Improve air circulation. Water at soil level.

Other Cauliflower problems