Can You Grow Onion in Oregon?
US · USDA Zone 8b · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
Plant zones
Oregon last frost
Oregon first frost
Days to harvest
When to plant Onions in Oregon
Start indoors
Transplant
Harvest
Dates are approximate, based on Oregon's average frost dates. Your exact yard may vary by microclimate.
About Onion
Onions are a staple crop that stores well and can be grown as sets transplants or from seed.
Growing from sets is easiest for beginners. Plant in early spring — onions are frost-tolerant. Day-length sensitive — choose short-day long-day or day-neutral varieties based on your latitude.
Gardening in Oregon
Oregon has dramatically different climates west and east of the Cascades. The Willamette Valley is mild and productive year-round (Zone 8a-8b); eastern Oregon is semi-arid and colder (Zone 5-6).
Frequently asked questions
Can you grow Onion in Oregon?
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
What zone is Oregon?
Oregon spans USDA Zone 8b (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b).
When do you plant Onions in Oregon?
Plant Onions around late January (start indoors Jan 1), harvest Apr 30 – May 30.