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Cauliflower planting and harvest datesCauliflower Planting Dates in Central Oregon
Usual cauliflower planting periods in Central Oregon, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.
| Activity | Window | Source | Last verified |
|---|---|---|---|
| Start indoors | March (seed flats indoors or in greenhouse) | source | 2026-11-11 |
| Item | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Start indoors | Start indoors window in March |
What these dates mean in Central Oregon
Start indoors usually runs about 31 days, from Mar 1 to Mar 31.
Frost-date caveat: these are published ranges for Central Oregon. A northern or high-elevation site will run later than a southern or low one, and a cold wet spring can push planting past the window. Monthly advice is not applicable to all areas of Oregon; frost dates and local conditions vary. Check your last spring frost and soil temperature, and confirm with your county extension office.
Related guides
Cauliflower dates in other places
- Arkansas
- Central Florida
- Central Illinois
- Central North Carolina
- Central and higher-elevation Eastern Oregon
- Columbia and Snake River valleys, Oregon
- Eastern North Carolina
- Maricopa County, Arizona
- Minnesota
- New Hampshire
- Northern Illinois
- Oregon Coast
- South Florida
- Southern Illinois
- Western North Carolina
- Western Oregon
- Western valleys (Portland, Roseburg, Medford), Oregon
Other crops in Central Oregon
Last reviewed: November 2026. Source: OSU Extension march garden calendar.