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Root Rot in Sea Holly

verifiedReviewed by the GreenScout Team

An eye-catching perennial with distinctive blue, thistle-like flower heads and spiky blue-tinted foliage that creates architectural interest in the garden

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Sea Holly care requirements

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

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Water
Low to moderate; water sparingly once established. Drought tolerant.
compost
Soil
Well-drained, poor to moderately fertile soil. Prefers sandy or gravelly conditions.
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Humidity
Low to moderate; prefers drier conditions.
symptoms

Symptoms to look for in Sea Holly

  • 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 Sea Holly

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

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 Sea Holly

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 Sea Holly

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

Other Sea Holly problems