When to plant edamame in Oklahoma
Oklahoma spans USDA zones 6b–8a, so the right time to plant edamame shifts by weeks across the state. The window to sow seed directly outdoors runs from about March 22 in Ardmore to April 25 in Guymon — below are local dates for 45 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Oklahoma City | 7b | April 4 | November 2 | April 11 – May 2 |
| Tulsa | 7b | March 31 | November 4 | April 7 – April 28 |
| Norman | 7b | April 3 | November 3 | April 10 – May 1 |
| Broken Arrow | 7b | April 1 | November 1 | April 8 – April 29 |
| Edmond | 7b | April 10 | October 28 | April 17 – May 8 |
| Lawton | 7b | March 26 | November 7 | April 2 – April 23 |
| Moore | 7b | March 31 | November 5 | April 7 – April 28 |
| Midwest City | 7b | April 2 | November 5 | April 9 – April 30 |
Edamame in Oklahoma: FAQ
When can I plant edamame in Oklahoma?
Across Oklahoma, the time to direct-sow edamame spans roughly March 22 in Ardmore to April 25 in Guymon, each following that city's local frost dates.
Does the edamame planting date vary across Oklahoma?
Yes. Oklahoma publishes 45 cities with their own frost dates, so the right edamame planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does edamame take to grow in Oklahoma?
Edamame takes about 75–95 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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