When to plant Asparagus in Maine
In spring, from Mar 15 – Apr 15 in Auburn to Apr 20 – May 15 in Sanford.
In fall, from Oct 20 – Nov 15 in Portland to Nov 1 – Dec 15 in Lewiston.
Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Auburn | Mar 15 – Apr 15 | Nov 1 – Dec 15Soon |
| Augusta | Mar 20 – Apr 15 | Nov 1 – Dec 15Soon |
| Bangor | Mar 20 – Apr 15 | Not listed |
| Biddeford | Apr 10 – 30 | Not listed |
| Lewiston | Mar 15 – Apr 15 | Nov 1 – Dec 15Soon |
| Portland | Mar 20 – Apr 15 | Oct 20 – Nov 15Now |
| Saco | Mar 20 – Apr 15 | Oct 20 – Nov 15Now |
| Sanford | Apr 20 – May 15 | Not listed |
| South Portland | Mar 20 – Apr 15 | Oct 20 – Nov 15Now |
| Waterville | Mar 20 – Apr 15 | Oct 20 – Nov 15Now |
| Westbrook | Mar 20 – Apr 15 | Oct 20 – Nov 15Now |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for asparagus.