§ When to plant · New Hampshire · Checked Sept 2026
In Manchester, tender crops like tomatoes and peppers can go out around May 12, and frost has historically passed 9 years in 10 by May 24. 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 |
|---|---|---|---|---|
| AltonLAKEPORT 2 · 22 km | Apr 30 | May 12May 12 | May 23 | Oct 4 |
| AmherstMILFORD · 3 km | May 3 | May 14May 14 | May 25 | Sep 25 |
| AntrimWEARE 2 NORTHEAST · 17 km | May 9 | May 23May 23 | Jun 5 | Sep 25 |
| AshlandPLYMOUTH · 10 km | May 20 | Jun 1June 1 | Jun 13 | Sep 14 |
| BartlettN CONWAY · 12 km | May 7 | May 19May 19 | May 31 | Sep 23 |
| BelmontLAKEPORT 2 · 12 km | Apr 30 | May 12May 12 | May 23 | Oct 4 |
| BenningtonWEARE 2 NORTHEAST · 17 km | May 9 | May 23May 23 | Jun 5 | Sep 25 |
| BerlinYORK POND · 5 km | May 23 | Jun 6June 6 | Jun 20 | Sep 9 |
| ClaremontNEWPORT · 12 km | May 14 | May 27May 27 | Jun 8 | Sep 19 |
| ConcordCONCORD MUNICIPAL AIRPORT · 6 km | May 8 | May 21May 21 | Jun 3 | Sep 21 |
| DoverDURHAM 2 N · 4 km | May 3 | May 16May 16 | May 28 | Sep 27 |
| FranklinFRANKLIN FALLS DAM · 2 km | May 7 | May 20May 20 | Jun 1 | Sep 24 |
| KeeneKEENE · 2 km | May 14 | May 27May 27 | Jun 9 | Sep 18 |
| LaconiaLAKEPORT 2 · 3 km | Apr 30 | May 12May 12 | May 23 | Oct 4 |
| LebanonLEBANON MUNICIPAL AIRPORT · 4 km | May 9 | May 23May 23 | Jun 6 | Sep 23 |
| ManchesterMASSABESIC LAKE · 4 km | Apr 30 | May 12May 12 | May 24 | Sep 30 |
| NashuaNASHUA CWSU · 2 km | Apr 29 | May 11May 11 | May 23 | Sep 28 |
| PortsmouthGREENLAND · 6 km | May 4 | May 17May 17 | May 29 | Sep 27 |
| RochesterROCHESTER SKYHAVEN AIRPORT · 5 km | Apr 30 | May 13May 13 | May 25 | Sep 27 |
| SomersworthROCHESTER SKYHAVEN AIRPORT · 4 km | Apr 30 | May 13May 13 | May 25 | Sep 27 |
New Hampshire'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 New Hampshire'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/new-hampshire/
§ 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, and again May.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Beta vulgaris
Cool seasonSuccession sow
Sow April to May; Plant April to July.
Ready in about 58 days; sow again every 6 weeks.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica oleracea
Cool season
Sow May; Plant May to July; Set out transplants May.
Ready in about 95 days from seed, 65 from transplants.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica oleracea
Cool season
Plant May to July; Set out transplants May.
Ready in about 130 days from seed, 100 from transplants.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica oleracea
Cool season
Sow May; Plant May, and again July; Set out transplants May.
Ready in about 110 days from seed, 80 from transplants.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Cucumis melo
Tender
Sow May to June; Set out transplants May to June; Plant June.
Ready in about 80 days from seed, 70 from transplants. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Daucus carota
Cool seasonSuccession sow
Sow April to May; Plant May to July.
Ready in about 70 days; sow again every 7 weeks.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica oleracea
Cool season
Sow May; Plant May to July; Set out transplants May.
Ready in about 95 days from seed, 68 from transplants.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Apium graveolens
Cool season
Set out transplants May.
Ready in about 90 days from transplants.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica rapa
Cool season
Sow July.
Ready in about 75 days from seed, 60 from transplants.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Cucumis sativus
TenderSuccession sow
Sow May to June; Plant May to June.
Ready in about 58 days from seed, 50 from transplants; sow again every 7 weeks. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Solanum melongena
Tender
Plant May to June; Set out transplants May to June.
Ready in about 75 days from transplants. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Cichorium endivia
Cool seasonSuccession sow
Sow April to May.
Ready in about 90 days from seed, 70 from transplants; sow again every 8 weeks.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Phaseolus vulgaris
TenderSuccession sow
Sow May; Plant May to June, and again May to July.
Ready in about 55 days; sow again every 5 weeks. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica oleracea
Cool season
Sow April to May.
Ready in about 60 days from seed, 45 from transplants.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica oleracea
Cool season
Sow April to May.
Ready in about 55 days from seed, 45 from transplants.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Lactuca sativa
Cool seasonSuccession sow
Sow April to May; Plant May to July, and again May to August; Set out transplants May.
Ready in about 65 days from seed, 50 from transplants; sow again every 6 weeks.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Phaseolus lunatus
Tender
Sow May.
Ready in about 75 days. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Allium cepa
Cool season
Plant April to May, and again May.
Ready in about 110 days from seed, 95 from transplants.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Petroselinum crispum
Cool season
Set out transplants May.
Ready in about 78 days from seed, 50 from transplants.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Pastinaca sativa
Cool season
Sow May; Plant May.
Ready in about 120 days.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Pisum sativum
Cool seasonSuccession sow
Sow April to May; Plant April to July.
Ready in about 65 days; sow again every 5 weeks.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Capsicum annuum
Tender
Plant May to June; Set out transplants May to June.
Ready in about 70 days from transplants. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Solanum tuberosum
Cool season
Plant May.
Ready in about 100 days.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Cucurbita pepo
Tender
Sow May to June; Plant May to June.
Ready in about 110 days from seed, 95 from transplants. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Raphanus sativus
Cool seasonSuccession sow
Plant April to August; Sow May.
Ready in about 28 days; sow again every 3 weeks.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Rheum rhabarbarum
Perennial
Plant April to May, and again May to June.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica napus
Cool season
Sow April to May; Plant June to July.
Ready in about 95 days.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Spinacia oleracea
Cool seasonSuccession sow
Sow April to May; Plant April to May.
Ready in about 42 days; sow again every 5 weeks.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Cucurbita pepo
TenderSuccession sow
Sow May to June; 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 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Zea mays
TenderSuccession sow
Sow May; Plant May to July.
Ready in about 78 days; sow again every 6 weeks. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Beta vulgaris
Cool season
Sow April to May; Plant May to July.
Ready in about 55 days from seed, 40 from transplants.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Solanum lycopersicum
Tender
Plant May to June; Set out transplants May to June.
Ready in about 75 days from transplants. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Brassica rapa
Cool seasonSuccession sow
Sow April to May.
Ready in about 50 days; sow again every 5 weeks.
Source: University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Citrullus lanatus
Tender
Sow May to June; Set out transplants May to June; Plant June.
Ready in about 85 days from seed, 75 from transplants. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
Cucurbita moschata
Tender
Sow May to June; Plant May to June.
Ready in about 95 days from seed, 80 from transplants. Tender: in spring, from about May 12 in Manchester. If frost is in the forecast, hold off until it passes and nights stay above 36°F.
Source: University of New Hampshire Cooperative Extension, Chapter 10 - The Vegetable Garden: Planting Chart for the Home Garden (Average Planting Date in New Hampshire); University of New Hampshire Cooperative Extension, Planting & Maturity Dates of Vegetables in New Hampshire. Days to harvest: Ezina crop catalog, from state extension guides.
§ 040 · Questions
On average from about April 29 in Nashua to May 23 in Berlin. Frost is over 9 years in 10 by May 23 to June 20.
The extension service lists May to June. Tomatoes are frost-tender, so Ezina dates them from about May 12 in Manchester. If frost is in the forecast, wait until it passes.
The latest fall windows on the calendar close in July. 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.