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Root Rot in Grevillea

How to identify and treat root rot in Grevillea.

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Grevillea care requirements

water
Drought-tolerant once established; water moderately during establishment and growth; minimal watering after maturity
soil
Well-draining sandy, gravelly, or loamy soil; prefers slightly acidic pH; does not tolerate heavy clay
light
Full sun (6–8 hours daily); tolerates partial shade but flowers best in bright light
symptoms

Symptoms to look for in Grevillea

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

Common causes in Grevillea

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

healing

How to treat root rot in Grevillea

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

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Preventing root rot in Grevillea

Never overwater. Ensure drainage. Avoid compacted soil.