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Root Rot in Crocosmia

verifiedReviewed by the GreenScout Team

A stunning summer-flowering perennial with arching sprays of fiery orange, red, or golden flowers that emerge from sword-like green or bronze foliage

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Crocosmia care requirements

These care conditions are most relevant to root rot in Crocosmia. Check each one as a potential cause.

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Water
Moderate watering during growing season; keep soil moist but not waterlogged. Reduce watering after blooming. Drought-tolerant once established
compost
Soil
Well-draining, fertile soil enriched with organic matter. Tolerates a wide pH range (6.0–7.5). Poor drainage causes corm rot
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Humidity
Moderate humidity; prefers drier conditions once established. Good air circulation reduces disease risk
symptoms

Symptoms to look for in Crocosmia

  • fiber_manual_recordBrown, mushy roots
  • fiber_manual_recordYellowing leaves
  • fiber_manual_recordWilting despite moist soil
  • fiber_manual_recordFoul smell from soil
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Common causes in Crocosmia

  • fiber_manual_recordOverwatering
  • fiber_manual_recordPoor drainage
  • fiber_manual_recordFungal pathogens
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How to diagnose root rot in Crocosmia

Remove plant from pot. Healthy roots are white/tan and firm. Rotted roots are brown/black and mushy.

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How to treat root rot in Crocosmia

Trim all rotted roots with sterile scissors. Treat with hydrogen peroxide solution. Repot in fresh, well-draining soil.

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Preventing root rot in Crocosmia

Always use pots with drainage holes. Allow soil to partially dry between waterings. Use well-draining compost.

Other Crocosmia problems