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Crop dates by placeWinter squash Planting Dates by State and Region
Published winter squash planting windows for 6 places, with the source and the caveats you need before you use them.
Across the 3 places in this data set, the planting window begins as early as Apr 1 (Columbia and Snake River valleys, Oregon) and as late as May 1 (Oregon Coast). The middle of the range starts around May 1.
| Place | Planting | Harvest |
|---|---|---|
| Central Missouri | Planting: planting dates 5/10 to 5/30 (month/day) | |
| Columbia and Snake River valleys, Oregon | Planting: April | |
| North Missouri | Planting: planting dates 5/15 to 5/30 (month/day) | |
| Oregon Coast | Planting: May | |
| South Missouri | Planting: planting dates 5/1 to 5/30 (month/day) | |
| Western valleys (Portland, Roseburg, Medford), Oregon | Planting: May |
Calendar view
| Item | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Central Missouri planting | Timing in table above | |||||||||||
| Columbia and Snake River valleys, Oregon planting | Planting window in April | |||||||||||
| North Missouri planting | Timing in table above | |||||||||||
| Oregon Coast planting | Planting window in May | |||||||||||
| South Missouri planting | Timing in table above | |||||||||||
| Western valleys (Portland, Roseburg, Medford), Oregon planting | Planting window in May | |||||||||||
Frost-date caveat: ranges blur real differences inside a state or region. Use them to plan, then fit them to your last frost date, soil temperature and field conditions.
Related guides
Last reviewed: November 2026. Source: MU Extension G6201 Vegetable Planting Calendar, Table 2.