Onion Neck Rot in Storage
Whole plant problem · common pattern reported by gardeners · verify locally
What you'll see
- Soft gray mold at neck
- Onions rot in storage
- Pungent smell
Most common causes
- Storage rot fungus (Botrytis)
- Harvested wet
- Cured poorly
- Stored warm/humid
How to fix it
- Sort out rotting onions
- Use unaffected quickly
Prevention: Stop watering 2-3 weeks before harvest Cure 2-3 weeks in dry air Store cool and dry
More Onion problems
Grow Onion with confidence
Open the Onion growing guide → · Planting calendar · Pest & problem diagnoser
ZoneFig content reflects widely published extension-service and gardening guidance. Symptoms and causes are common patterns, not a diagnosis for any individual plant — verify locally and treat conservatively.