Pruning guide
How to prune 'walla walla' onion
More 'walla walla' onion care
Pruning 'walla walla' onion — FAQ
When should I prune 'walla walla' onion?
No pruning needed; harvest when tops begin to fall naturally. Remove diseased or physically damaged outer leaves at the base if needed. Do not cut healthy green tops — allow them to yellow and fall over naturally. At that point, knock remaining tops over and leave to cure for a week before lifting.
How often does 'walla walla' onion need pruning?
Rarely; only for damage removal. Walla Walla onions need no pruning. They are grown for their large, sweet bulb and the leaf tops die back naturally at maturity, signalling harvest time. Do not cut the green tops while they are actively growing — they feed the bulb. Remove any damaged or diseased outer leaves if needed. Bend tops over manually only as a traditional harvest-prep trick.
How do you prune 'walla walla' onion?
Remove diseased or physically damaged outer leaves at the base if needed. Do not cut healthy green tops — allow them to yellow and fall over naturally. At that point, knock remaining tops over and leave to cure for a week before lifting.