When to plant Onion sets in Massachusetts
In spring, from Feb 15 – Mar 20 in Boston to Apr 10 – May 1 in North Adams.
In fall, Oct 1 – Dec 1.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Agawam Town | Mar 10 – Apr 10 | Spring-planted |
| Amesbury | Mar 10 – Apr 10 | Spring-planted |
| Amherst Town | Mar 10 – Apr 10 | Spring-planted |
| Attleboro | Mar 10 – Apr 10 | Spring-planted |
| Barnstable Town | Mar 10 – Apr 1 | Not listed |
| Beverly | Mar 10 – Apr 10 | Spring-planted |
| Boston | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Braintree Town | Mar 10 – Apr 1 | Spring-planted |
| Bridgewater Town | Mar 10 – Apr 10 | Spring-planted |
| Brockton | Mar 10 – Apr 1 | Spring-planted |
| Cambridge | Mar 10 – Apr 1 | Spring-planted |
| Chelsea | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Chicopee | Mar 10 – Apr 10 | Spring-planted |
| Easthampton | Mar 10 – Apr 10 | Spring-planted |
| Everett | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Fall River | Mar 10 – Apr 10 | Spring-planted |
| Fitchburg | Mar 10 – Apr 10 | Spring-planted |
| Framingham | Mar 10 – Apr 10 | Spring-planted |
| Franklin Town | Mar 10 – Apr 10 | Spring-planted |
| Gardner | Mar 10 – Apr 10 | Spring-planted |
| Gloucester | Mar 10 – Apr 10 | Spring-planted |
| Greenfield | Mar 10 – Apr 10 | Spring-planted |
| Haverhill | Mar 10 – Apr 10 | Spring-planted |
| Holyoke | Mar 10 – Apr 10 | Spring-planted |
| Lawrence | Mar 1 – Apr 1 | Not listed |
| Leominster | Mar 10 – Apr 10 | Spring-planted |
| Lowell | Mar 10 – Apr 10 | Spring-planted |
| Lynn | Mar 10 – Apr 1 | Spring-planted |
| Malden | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Marlborough | Mar 10 – Apr 10 | Spring-planted |
| Medford | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Melrose | Mar 10 – Apr 1 | Spring-planted |
| Methuen | Mar 1 – Apr 1 | Not listed |
| New Bedford | Mar 10 – Apr 10 | Spring-planted |
| Newburyport | Mar 10 – Apr 10 | Spring-planted |
| Newton | Mar 10 – Apr 1 | Spring-planted |
| North Adams | Apr 10 – May 1 | Spring-planted |
| North Attleborough Town | Mar 10 – Apr 1 | Spring-planted |
| Northampton | Mar 10 – Apr 10 | Spring-planted |
| Palmer Town | Mar 10 – Apr 10 | Spring-planted |
| Peabody | Mar 10 – Apr 1 | Spring-planted |
| Pittsfield | Mar 10 – Apr 10 | Spring-planted |
| Quincy | Mar 10 – Apr 1 | Spring-planted |
| Randolph Town | Mar 10 – Apr 1 | Not listed |
| Revere | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Salem | Mar 10 – Apr 1 | Spring-planted |
| Somerville | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Southbridge Town | Mar 10 – Apr 1 | Spring-planted |
| Springfield | Mar 10 – Apr 10 | Spring-planted |
| Taunton | Mar 10 – Apr 1 | Spring-planted |
| Waltham | Mar 10 – Apr 10 | Spring-planted |
| Watertown | Mar 10 – Apr 1 | Spring-planted |
| West Springfield Town | Mar 10 – Apr 10 | Spring-planted |
| Westfield | Mar 10 – Apr 10 | Spring-planted |
| Weymouth Town | Mar 10 – Apr 1 | Spring-planted |
| Winthrop Town | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Woburn | Mar 10 – Apr 1 | Spring-planted |
| Worcester | Mar 10 – Apr 1 | Spring-planted |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. The full USDA table for onion sets.