When to plant spinach in Massachusetts
Massachusetts spans USDA zones 5b–7b, so the right time to plant spinach shifts by weeks across the state. The window to sow seed directly outdoors runs from about February 21 in Boston to March 29 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 | February 21 – March 21 |
| Worcester | 6a | April 23 | October 21 | March 12 – April 9 |
| Springfield | 6a | May 3 | October 8 | March 22 – April 19 |
| Cambridge | 6b | April 19 | October 23 | March 8 – April 5 |
| Lowell | 6b | April 30 | October 10 | March 19 – April 16 |
| Brockton | 6b | April 22 | October 19 | March 11 – April 8 |
| Quincy | 7a | April 25 | October 22 | March 14 – April 11 |
| Lynn | 7a | April 25 | October 20 | March 14 – April 11 |
Spinach in Massachusetts: FAQ
When can I plant spinach in Massachusetts?
Across Massachusetts, the time to direct-sow spinach spans roughly February 21 in Boston to March 29 in North Adams, each following that city's local frost dates.
Does the spinach planting date vary across Massachusetts?
Yes. Massachusetts publishes 89 cities with their own frost dates, so the right spinach 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 spinach take to grow in Massachusetts?
Spinach takes about 40–50 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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