When to plant dill in Maine
Maine spans USDA zones 5a–6a, so the right time to plant dill shifts by weeks across the state. The window to sow seed directly outdoors runs from about April 11 in Lewiston to May 2 in Sanford — below are local dates for 13 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Portland | 6a | April 26 | October 15 | April 12 – May 24 |
| Lewiston | 5b | April 25 | October 19 | April 11 – May 23 |
| Bangor | 5a | May 4 | October 4 | April 20 – June 1 |
| South Portland | 6a | April 26 | October 15 | April 12 – May 24 |
| Auburn | 5b | April 25 | October 19 | April 11 – May 23 |
| Biddeford | 6a | May 9 | October 3 | April 25 – June 6 |
| Sanford | 5b | May 16 | September 30 | May 2 – June 13 |
| Saco | 6a | April 26 | October 15 | April 12 – May 24 |
Dill in Maine: FAQ
When can I plant dill in Maine?
Across Maine, the time to direct-sow dill spans roughly April 11 in Lewiston to May 2 in Sanford, each following that city's local frost dates.
Does the dill planting date vary across Maine?
Yes. Maine publishes 13 cities with their own frost dates, so the right dill 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 dill take to grow in Maine?
Dill takes about 40–60 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
Never miss a window in your area
An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.