Edamame planting calendar
When to plant edamame — pick your state
Edamame timing swings hard by climate — choose your state for sow, transplant, and harvest dates calibrated to its USDA zone and frost window.
Northeast
Southeast
Midwest
Southwest
West
Pacific
Not listed: Alaska, Minnesota, Montana, North Dakota, South Dakota, Vermont, Wyoming — the dominant climate zone there is outside edamame's practical range, so a generic calendar would mislead more than it helps.
Common questions
When should I plant edamame?
Direct sow after last frost when soil is at least 60 °F (16 °C); seeds rot readily in cold, wet soil. Harvest at the edamame (green-pod) stage 75–90 days from sowing, when pods are plump and bright green — the window is only 5–7 days before beans mature to dry soybeans. Zones 3–4 should select fast-maturing varieties (≤80 days) and use black plastic mulch to warm soil; zones 9–11 can make a second sowing in late summer for fall harvest. Because the right window depends on your local frost dates, pick your US state above for a calendar with exact sow, transplant, and harvest dates.
Does the best time to plant edamame vary by state?
Yes — planting dates swing by several weeks across the US because each state sits in a different USDA zone with its own frost window. Every state page here gives edamame dates calibrated to that state's climate.
How are these edamame planting dates calculated?
Each state's dates come from that state's dominant USDA hardiness zone and NOAA average frost dates, then adjusted for edamame's cold tolerance and days to maturity.