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Root Rot in Lupin
verifiedReviewed by the GreenScout Team
Lupins are tall, stately perennials with striking spires of densely-packed flowers in rich jewel tones and pastels
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Lupin care requirements
These care conditions are most relevant to root rot in Lupin. Check each one as a potential cause.
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Water
Water regularly to keep soil consistently moist; good drainage is critical. Drought-sensitive; mulch to retain moisture.
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Soil
Prefers slightly acidic to neutral soil (pH 6.0–7.0). Must have excellent drainage; tolerates poor soil.
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Humidity
Moderate humidity preferred; excellent air circulation essential to prevent root rot and fungal disease.
symptoms
Symptoms to look for in Lupin
- 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 Lupin
- fiber_manual_recordOverwatering
- fiber_manual_recordPoor drainage
- fiber_manual_recordFungal pathogens
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How to diagnose root rot in Lupin
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 Lupin
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 Lupin
Always use pots with drainage holes. Allow soil to partially dry between waterings. Use well-draining compost.