High-elevation and plateau gardens often lag warmer valley windows.
Regional guide
Oregon Four-Region Vegetable Garden
A guide for Oregon gardeners who need different planting windows for the coast, western valleys, high elevations, and Columbia/Snake valleys.
Regional timing
Current regional planting plan
Source-backed timing
OSU Extension vegetable gardening in Oregon
Oregon Regions
3 climate signals
Source
source cues
Local
conditions
- Oregon State separates planting dates into Coast, Western valleys, high-elevation/mountain/plateau areas, and Columbia/Snake valleys.
- High-elevation and plateau gardens often lag warmer valley windows.
- Row covers can protect cucurbits early, but covers need to come off during bloom for bee pollination.
- Catalog priority
- 8 priority crops 8 catalog examples
- Climate checks
- 3 climate signals 3 planning notes
- Timing basis
- Use regional source signals source guidance first
Green Globe Artichoke, Waltham 29 Broccoli, Detroit Dark Red Beet, Black Seeded Simpson Lettuce
Match cool-season brassicas, beets, and greens to the local spring and fall window.
Calendar
Convert regional timing into dated sowing, transplant, and harvest jobs.
Frost dates
Keep hardiness zone context separate from local first and last frost dates.
All regions
Compare this guide with the broader regional atlas.
Willamette Calendar
OSU EM 9032 Willamette Valley monthly calendar for average-weather timing, soil checks, protected starts, transplants, and crop examples.
Climate signals
- Oregon State separates planting dates into Coast, Western valleys, high-elevation/mountain/plateau areas, and Columbia/Snake valleys.
- High-elevation and plateau gardens often lag warmer valley windows.
- Row covers can protect cucurbits early, but covers need to come off during bloom for bee pollination.
Planning notes
- Use the OSU regional table before choosing a statewide planting date.
- Match cool-season brassicas, beets, and greens to the local spring and fall window.
- Treat melons, squash, cucumbers, tomatoes, and beans as region-sensitive warm-season crops.
Catalog crop examples
These catalog entries match crops covered by the regional timing source; variety-specific details remain tied to each seed entry's own source.
- Green Globe Artichoke Vegetable · Warm · 120 days
- Waltham 29 Broccoli Vegetable · Cool · 74 days
- Detroit Dark Red Beet Vegetable · Cool · 58 days
- Black Seeded Simpson Lettuce Vegetable · Cool · 45 days
- Provider Bush Bean Vegetable · Warm · 50 days
- Delicata Winter Squash Vegetable · Warm · 100 days
- Marketmore 76 Cucumber Vegetable · Warm · 58 days
- Spring Oats Cover Crop Cover Crop · Cool · 60 days
Related regional guides
- Willamette Valley Oregon Garden Calendar OSU EM 9032 Willamette Valley monthly calendar for average-weather timing, soil checks, protected starts, transplants, and crop examples.
- Eastern Oregon Seed-Starting Schedule OSU Extension Eastern Oregon schedule for May 21 frost-free timing, semi-arid frost risk, indoor starts, direct seeding, and hardening off.
- Central Oregon Seed-Starting Schedule OSU Extension Central Oregon schedule for May 31 frost-free planning, indoor sowing count-backs, and crop-level examples.
- Oregon Coast Vegetable Climate Guide OSU Extension coastal vegetable guide for mild, rainy, cool-summer gardens, wind, fog, protection, and crop-level catalog examples.
Dated sowing answers, where the data exists
Five regions on this site have a dated "what can I still sow today" page, built from the windows their state extension service publishes: Texas, North Florida, Central Maryland, New York City and York County, PA. Oregon Regions is not one of them, and nothing on those pages applies here.
- Why there is no "what can I still plant" page for Oregon Regions yet The frost-runway method and its coverage limit, stated on the page itself.