Crop dates by place

Potatoes Planting Dates by State and Region

Published potatoes planting windows for 16 places, with the source and the caveats you need before you use them.

Across the 4 places in this data set, the planting window begins as early as Apr 1 (Oregon Coast) and as late as May 1 (Western valleys (Portland, Roseburg, Medford), Oregon). The middle of the range starts around Apr 16.

Potatoes windows by place
Place	Planting	Harvest
Cedar City, Utah	Planting: average date of initial planting about April 15; average last spring frost May 21
Central and higher-elevation Eastern Oregon	Planting: May (direct seed)
Columbia and Snake River valleys, Oregon	Planting: April
Heber, Utah	Planting: average date of initial planting about May 5; average last spring frost June 11
Logan (USU), Utah	Planting: average date of initial planting about April 10; average last spring frost May 7
Maricopa County, Arizona	Planting: early Jan to mid Mar (seed)
Minnesota	Planting: mid april to mid may
Moab, Utah	Planting: average date of initial planting about April 1; average last spring frost April 18
Ogden, Utah	Planting: average date of initial planting about March 20; average last spring frost May 3
Oregon Coast	Planting: April
Provo (BYU), Utah	Planting: average date of initial planting about March 20; average last spring frost May 1
Richfield, Utah	Planting: average date of initial planting about April 15; average last spring frost May 28
Salt Lake City (International Airport station), Utah	Planting: average date of initial planting about March 20; average last spring frost April 26
St George, Utah	Planting: average date of initial planting about March 1; average last spring frost March 30
Vernal, Utah	Planting: average date of initial planting about April 15; average last spring frost May 27
Western valleys (Portland, Roseburg, Medford), Oregon	Planting: May

Calendar view

Potatoes calendar by place
Item	Jan	Apr	May
Cedar City, Utah planting	Timing in table above
Central and higher-elevation Eastern Oregon planting			Planting window in May
Columbia and Snake River valleys, Oregon planting		Planting window in April
Heber, Utah planting	Timing in table above
Logan (USU), Utah planting	Timing in table above
Maricopa County, Arizona planting	Timing in table above
Minnesota planting	Timing in table above
Moab, Utah planting	Timing in table above
Ogden, Utah planting	Timing in table above
Oregon Coast planting		Planting window in April
Provo (BYU), Utah planting	Timing in table above
Richfield, Utah planting	Timing in table above
Salt Lake City (International Airport station), Utah planting	Timing in table above
St George, Utah planting	Timing in table above
Vernal, Utah 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.

Last reviewed: November 2026. Source: USU Extension - Suggested Vegetable Planting Dates for Utah (Table 1).