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What can I grow here, and when?
Frost dates, planting zones, soil types, and what actually thrives in Oregon — from mountains to coast.
Frost dates & zones
Oregon spans USDA zones 4b (eastern OR / Wallowa Mountains) to 9b (southwestern OR / Medford valley). Verify your exact zone and frost dates with your county Extension office — elevation and microclimates create real variation.
Hardiness Zones
4b (eastern OR / Wallowa Mountains) to 9b (southwestern OR / Medford valley)
Last frost: varies by region. First frost: varies by region.
Look up your exact zone by ZIP at USDA →What grows well here
Willamette Valley Jory soils need minimal amendment — test before adding anything. Coastal soils are acidic and need lime. Eastern OR desert soils need compost, irrigation, and sometimes gypsum. OSU Extension county offices are excellent resources for Oregon-specific soil guidance.
Know your soil
Western Oregon's Willamette Valley has some of the most productive soils in the country — deep, well-draining Jory clay loam that is ideal for wine grapes, berries, and vegetables. The Coast Range has thin, wet, acidic soils. Eastern Oregon has alkaline, dry soils that need irrigation and organic matter. Portland's urban soils are variable but often contaminated.
Map your soil type with USDA Web Soil Survey →Free soil testing
Free or low-cost soil testing available through your county Extension office
Results include specific lime and fertilizer recommendations
Most states offer testing April through fall — fees apply in winter
Results typically returned within 10 business days
Next steps
Preserve what you grow
Oregon Extension offers food preservation workshops — and NWS has the full canning guides.
Food IndependenceGet the checklist
Spring prep, frost protection, soil test timing, and compost setup — timed to regional frost dates.
OR Checklists