Seeding Calendar
Zone 5B Seeding Calendar
Optimal planting windows for cool-season and warm-season grasses in USDA Hardiness Zone 5B.
Seeding Calendar — Zone 5B
J
F
M
A
M
J
J
A
S
O
N
D
Cool Seed (Best)
Cool Seed (OK)
Warm Seed (Best)
Warm Seed (OK)
Cool Seed (Best)
Cool Seed (OK)
Warm Seed (Best)
Warm Seed (OK)
Optimal (cool)
Acceptable (cool)
Optimal (warm)
Acceptable (warm)
Recommended Grasses for Zone 5B
Warm-Season
Counties in Zone 5B
Gilpin County
COLDS 27
Lincoln County
COLDS 31
Teller County
COLDS 31
Sedgwick County
COLDS 35
Yuma County
COLDS 35
Crowley County
COLDS 37
Logan County
COLDS 37
Blaine County
IDLDS 38
Elbert County
COLDS 41
Ouray County
COLDS 41
Eagle County
COLDS 43
Phillips County
COLDS 43
Morgan County
COLDS 44
Rio Grande County
COLDS 44
Washington County
COLDS 44
Douglas County
COLDS 45
Bingham County
IDLDS 46
Clear Creek County
COLDS 47
Larimer County
COLDS 47
San Miguel County
COLDS 47
Weld County
COLDS 47
Clark County
IDLDS 48
Costilla County
COLDS 50
Custer County
COLDS 50
Park County
COLDS 50
Pitkin County
COLDS 50
Bonneville County
IDLDS 50
Custer County
IDLDS 50
Chaffee County
COLDS 51
Lemhi County
IDLDS 51
Seeding windows are based on USDA hardiness zones and NOAA frost date data. Actual timing may vary by elevation, microclimate, and specific cultivar.