When to plant cowpea (southern pea) in Massachusetts
Massachusetts spans USDA zones 5b–7b, so the right time to plant cowpea (southern pea) shifts by weeks across the state. The window to sow seed directly outdoors runs from about April 18 in Boston to May 24 in North Adams — below are local dates for 89 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Boston | 7a | April 4 | November 9 | April 18 – May 2 |
| Worcester | 6a | April 23 | October 21 | May 7 – May 21 |
| Springfield | 6a | May 3 | October 8 | May 17 – May 31 |
| Cambridge | 6b | April 19 | October 23 | May 3 – May 17 |
| Lowell | 6b | April 30 | October 10 | May 14 – May 28 |
| Brockton | 6b | April 22 | October 19 | May 6 – May 20 |
| Quincy | 7a | April 25 | October 22 | May 9 – May 23 |
| Lynn | 7a | April 25 | October 20 | May 9 – May 23 |
Cowpea (Southern Pea) in Massachusetts: FAQ
When can I plant cowpea (southern pea) in Massachusetts?
Across Massachusetts, the time to direct-sow cowpea (southern pea) spans roughly April 18 in Boston to May 24 in North Adams, each following that city's local frost dates.
Does the cowpea (southern pea) planting date vary across Massachusetts?
Yes. Massachusetts publishes 89 cities with their own frost dates, so the right cowpea (southern pea) 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 cowpea (southern pea) take to grow in Massachusetts?
Cowpea (Southern Pea) takes about 60–90 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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