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Growing Walla Walla in Oregon
Allium cepa 'Walla Walla'
Marine to Semi-aridZones 4, 5, 6, 7, 8, 9150-280 day season
🏛️ Oregon Growing Overview
Climate
Marine to Semi-arid
Primary Zone
Zone 8
Last Frost Range
March 1 - June 15
First Frost Range
September 15 - November 30
Famous Oregon crops: Hazelnuts, Berries, Hops, Grass seed, Wine grapes
📍 Zone Suitability in Oregon
✓ Best Zones for Walla Walla
Zone 4135 days
This variety matures in 115 days, well within Zone 4's 135-day growing season.
Zone 5160 days
This variety matures in 115 days, well within Zone 5's 160-day growing season.
Zone 6185 days
This variety matures in 115 days, well within Zone 6's 185-day growing season.
Zone 7210 days
This variety matures in 115 days, well within Zone 7's 210-day growing season.
Zone 8240 days
This variety matures in 115 days, well within Zone 8's 240-day growing season.
Zone 9275 days
This variety matures in 115 days, well within Zone 9's 275-day growing season.
⚠️ Oregon Growing Challenges
⚠️Rain (west)
⚠️Drought (east)
⚠️Slugs
⚠️Cool summers (coast)
✓ Oregon Growing Advantages
✓Mild climate (west)
✓Low humidity
✓Diverse growing regions
📊 Walla Walla Quick Facts
Days to Maturity
115-130
Difficulty
intermediate
Season
spring
Type
Heirloom
🎓 Oregon Extension Resources
For local, research-based growing information, visit your state's Cooperative Extension Service:
Visit Oregon Extension →📍 View Walla Walla Guide for Other States
🌱 Other Onion Varieties for Oregon
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