Watermelon (plants) Planting Dates by State and Region

Published watermelon (plants) planting windows for 10 places, with the source and the caveats you need before you use them.

Watermelon (plants) windows by place
Place	Planting	Harvest
Cedar City, Utah	Planting: average date of initial planting about June 1; average last spring frost May 21
Heber, Utah	Planting: average date of initial planting about May 15 (protected with cover); average last spring frost June 11
Logan (USU), Utah	Planting: average date of initial planting about May 20; average last spring frost May 7
Moab, Utah	Planting: average date of initial planting about May 1; average last spring frost April 18
Ogden, Utah	Planting: average date of initial planting about May 20; average last spring frost May 3
Provo (BYU), Utah	Planting: average date of initial planting about May 20; average last spring frost May 1
Richfield, Utah	Planting: average date of initial planting about June 1 (protected with cover); average last spring frost May 28
Salt Lake City (International Airport station), Utah	Planting: average date of initial planting about May 15; average last spring frost April 26
St George, Utah	Planting: average date of initial planting about April 1; average last spring frost March 30
Vernal, Utah	Planting: average date of initial planting about May 15 (protected with cover); average last spring frost May 27

Calendar view

Watermelon (plants) calendar by place
Item	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cedar City, Utah planting	Timing in table above
Heber, Utah planting	Timing in table above
Logan (USU), Utah planting	Timing in table above
Moab, Utah planting	Timing in table above
Ogden, Utah planting	Timing in table above
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

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).