Seeding Calendar by Zone
Know exactly when to plant grass seed in your USDA hardiness zone. Each zone has specific optimal and acceptable seeding windows for both cool-season and warm-season grasses.
Extreme cold winters; very short growing season
Extreme cold winters; short growing season
Very cold winters; limited warm season
Very cold winters; cool summers
Cold winters; moderate growing season
Cold winters; moderate summers
Moderately cold winters; long growing season
Moderately cold winters; warm summers
Mild winters; hot summers — transition zone
Mild winters; hot summers — transition zone
Short cold season; long warm season
Very mild winters; extended warm season
Frost rare; year-round growing possible
Frost rare; long frost-free period
Essentially frost-free; tropical-like climate
Frost-free; tropical conditions
Frost-free tropical zone
Frost-free tropical zone
Seeding windows are based on USDA hardiness zones and NOAA frost date data. Actual timing may vary by elevation, microclimate, and specific cultivar. Consult your local cooperative extension office for region-specific guidance.