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Root Rot in Rhododendron
verifiedReviewed by the GreenScout Team
An evergreen shrub with large, leathery leaves and showy purple-pink flowers in spring
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Rhododendron care requirements
These care conditions are most relevant to root rot in Rhododendron. Check each one as a potential cause.
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Water
Keep soil consistently moist but well-draining; water deeply during dry spells. Avoid both waterlogging and drought stress.
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Soil
Acidic, well-draining soil (pH 4.5–6.0) rich in organic matter such as peat or leaf mold. Poor drainage causes root problems.
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Humidity
Prefers moderate to high humidity; benefits from misting in dry conditions or drought stress situations.
symptoms
Symptoms to look for in Rhododendron
- 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 Rhododendron
- fiber_manual_recordOverwatering
- fiber_manual_recordPoor drainage
- fiber_manual_recordFungal pathogens
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How to diagnose root rot in Rhododendron
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 Rhododendron
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 Rhododendron
Always use pots with drainage holes. Allow soil to partially dry between waterings. Use well-draining compost.