§ When to plant · Maine · Checked Sept 2026
In Portland, tender crops like tomatoes and peppers can go out around May 8, and frost has historically passed 9 years in 10 by May 20. Cool-season crops go in from April, and again from July for fall.
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§ 010 · Frost dates
Based on NOAA's 1991–2020 station records, with adjustments for tender crops.
| City · NOAA station | Last frost, on average | Plant tender crops from | Frost is over, 9 of 10 years by | Fall frost possible from |
|---|---|---|---|---|
| AuburnLEWISTON · 3 km | Apr 25 | May 7May 7 | May 18 | Oct 5 |
| AugustaAUGUSTA STATE AIRPORT · 5 km | Apr 27 | May 9May 9 | May 20 | Oct 2 |
| BangorBANGOR INTERNATIONAL AIRPORT · 4 km | May 4 | May 18May 18 | May 31 | Sep 23 |
| BathBATH · 1 km | May 10 | May 22May 22 | Jun 2 | Sep 25 |
| BelfastBELFAST · 5 km | May 7 | May 20May 20 | Jun 1 | Sep 24 |
| BiddefordKENNEBUNKPORT · 11 km | May 9 | May 21May 21 | Jun 2 | Sep 20 |
| BrewerBANGOR INTERNATIONAL AIRPORT · 7 km | May 4 | May 18May 18 | May 31 | Sep 23 |
| CaribouCARIBOU MUNICIPAL AIRPORT · 7 km | May 7 | May 23May 23 | Jun 7 | Sep 17 |
| EllsworthE SURRY · 10 km | May 8 | May 21May 21 | Jun 3 | Sep 27 |
| GardinerGARDINER · 3 km | May 1 | May 14May 14 | May 27 | Sep 30 |
| LewistonLEWISTON · 4 km | Apr 25 | May 7May 7 | May 18 | Oct 5 |
| Old TownOLD TOWN 2 W · 4 km | May 13 | May 27May 27 | Jun 9 | Sep 16 |
| PortlandPORTLAND INTERNATIONAL JETPORT · 9 km | Apr 26 | May 8May 8 | May 20 | Oct 2 |
| Presque IslePRESQUE ISLE · 4 km | May 14 | May 31May 31 | Jun 17 | Sep 10 |
| RocklandW ROCKPORT 1 NNW · 8 km | Apr 27 | May 10May 10 | May 22 | Oct 5 |
| SacoPORTLAND INTERNATIONAL JETPORT · 17 km | Apr 26 | May 8May 8 | May 20 | Oct 2 |
| SanfordSANFORD 2 NNW · 4 km | May 16 | May 27May 27 | Jun 6 | Sep 18 |
| South PortlandPORTLAND INTERNATIONAL JETPORT · 2 km | Apr 26 | May 8May 8 | May 20 | Oct 2 |
| WatervilleWATERVILLE TRTMT PLT · 2 km | May 2 | May 15May 15 | May 27 | Sep 30 |
| WestbrookPORTLAND INTERNATIONAL JETPORT · 8 km | Apr 26 | May 8May 8 | May 20 | Oct 2 |
Maine's 20 largest cities (U.S. Census Bureau 2025 estimates), A to Z, each with its nearest NOAA station and the distance to it. Search any town to get its nearest station. "Plant tender crops from" is halfway between the average last frost and the date frost is over 9 years in 10; if frost is in the forecast after it, wait until it passes and nights stay above 36°F.
§ 020 · What to plant
Planting windows from Maine's Cooperative Extension Service. Filter by season or crop group; every view has its own link.
Link to this view getezina.com/when-to-plant/maine/
§ 030 · Crop by crop
Each crop has its own link, like #tomatoes. Tender crops wait for the frost dates above; succession crops are sown again every few weeks for a steady harvest.
Asparagus officinalis
Perennial
Plant April to May.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Beta vulgaris
Cool seasonSuccession sow
Plant April to August.
Ready in about 58 days; sow again every 6 weeks.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica oleracea
Cool season
Plant May to August.
Ready in about 95 days from seed, 65 from transplants.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica oleracea
Cool season
Plant May to August.
Ready in about 110 days from seed, 80 from transplants.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Daucus carota
Cool seasonSuccession sow
Plant May to July.
Ready in about 70 days; sow again every 7 weeks.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Cucumis sativus
TenderSuccession sow
Plant June to July.
Ready in about 58 days from seed, 50 from transplants; sow again every 7 weeks. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Solanum melongena
Tender
Plant June.
Ready in about 75 days from transplants. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Phaseolus vulgaris
TenderSuccession sow
Plant May to June, and again May to July.
Ready in about 65 days; sow again every 5 weeks. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Allium cepa
Cool season
Plant April to May.
Ready in about 110 days from seed, 95 from transplants.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Pastinaca sativa
Cool season
Plant May.
Ready in about 120 days.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Pisum sativum
Cool seasonSuccession sow
Plant April to July.
Ready in about 65 days; sow again every 5 weeks.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Capsicum annuum
Tender
Plant May to June.
Ready in about 70 days from transplants. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Solanum tuberosum
Cool season
Plant May to June.
Ready in about 100 days.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Cucurbita pepo
Tender
Plant May to June.
Ready in about 110 days from seed, 95 from transplants. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Spinacia oleracea
Cool seasonSuccession sow
Plant April to May, and again July to August.
Ready in about 42 days; sow again every 5 weeks.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Cucurbita pepo
TenderSuccession sow
Plant May to July.
Ready in about 50 days from seed, 40 from transplants; sow again every 7 weeks. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Zea mays
TenderSuccession sow
Plant May to July.
Ready in about 78 days; sow again every 6 weeks. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Solanum lycopersicum
Tender
Plant May to June.
Ready in about 75 days from transplants. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica rapa
Cool seasonSuccession sow
Plant May to August.
Ready in about 50 days; sow again every 5 weeks.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
Cucurbita moschata
Tender
Plant May to June.
Ready in about 95 days from seed, 80 from transplants. Tender: in spring, from about May 8 in Portland. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of Maine Cooperative Extension (Cooperative Extension: Garden and Yard), Planting Chart for the Home Vegetable Garden. Days to harvest: Ezina crop catalog, from state extension guides.
§ 040 · Questions
On average from about April 25 in Auburn to May 16 in Sanford. Frost is over 9 years in 10 by May 18 to June 17.
The extension service lists May to June. Tomatoes are frost-tender, so Ezina dates them from about May 8 in Portland. If frost is in the forecast, wait until it passes.
The latest fall windows on the calendar close in August. Filter by Fall above to see what is still open.
A zone is the coldest winter night, not a frost date. These dates come from NOAA station records and the extension service.
Yes. Run Ezina Dig on your address and your bed plans are dated from that site's own frost records, on iPhone and Android in the contiguous U.S.