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Root Rot in Gunnera

verifiedReviewed by the GreenScout Team

A dramatic architectural perennial with massive palmate leaves that can reach 5–6 feet across, creating a tropical effect in cool climates

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Gunnera care requirements

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

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Water
High moisture requirement; keep soil consistently wet or boggy. Plant beside water features or in low-lying areas
compost
Soil
Rich, moisture-retentive soil with high organic matter content; thrives in boggy conditions
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Humidity
High humidity essential; benefits from regular misting and consistently moist environment
symptoms

Symptoms to look for in Gunnera

  • 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 Gunnera

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

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 Gunnera

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 Gunnera

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

Other Gunnera problems

Root Rot in Gunnera — Causes & Treatment | GreenScout