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Root Rot in St John's Wort

How to identify and treat root rot in St John's Wort.

potted_plant

St John's Wort care requirements

water
Low water needs; water moderately when young; once established, very drought-tolerant. Minimal watering needed.
soil
Well-draining soil; tolerates poor, sandy, rocky, or clay soils; neutral to slightly alkaline pH (6.0–7.5) preferred.
light
Full sun (6–8 hours daily); requires bright light for optimal flowering and compound development.
symptoms

Symptoms to look for in St John's Wort

  • fiber_manual_recordBrown, mushy roots
  • fiber_manual_recordWilting despite moist soil
  • fiber_manual_recordYellowing leaves
  • fiber_manual_recordFoul odour
help

Common causes in St John's Wort

Caused by Pythium, Phytophthora, or Fusarium species in waterlogged conditions.

healing

How to treat root rot in St John's Wort

Remove plant, trim rotted roots, treat with hydrogen peroxide, repot in fresh well-draining soil.

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Preventing root rot in St John's Wort

Never overwater. Ensure drainage. Avoid compacted soil.