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When to plant peas in Portland, Maine: 25 March – 22 August

In Portland, Maine, peas: sow straight into the bed from 25 March to 22 August. For seeds, the places nearby include Harmons Vegetable Stand (farm shop, 12 km); addresses and opening hours are below.

Peas in Portland, Maine: soil, season and weather

Peas tolerates light frost and could go in three weeks before the last frost (15 April), but the top 7 cm of soil reaches its minimum of 4 °C only around 6 April, 12 days after that.

Last spring frost15 April
Top 7 cm of soil at 4 °C6 April, 9 days before the last frost
First autumn frost4 November, 224 days after the start
Days in the bed to the first harvest (card)74
First harvest, if planted in this window7 June – 4 November
Days left for picking150
Daylight12:22 on 25 March
Watering outdoors when fruiting (card)every 3 days; the driest month, September, has 9 rainy days

Peas in Portland, Maine: care after planting

Planted on 25 March: in the first weeks water every 6 days.

Pests and diseases of peas to watch for:

Weather in Portland, Maine during the peas season

About 862 mm of rain falls in the season; September is the driest month (80 mm) and October the wettest (121 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
March6-3.21011211:52
April11.32.51201213:24
May17.38.2821014:42
June22.613.9851115:25
July26.117.9951115:08
August25.317.2831014:01
September21.713.780912:33
October15.68.11211011:05
November8.41.29599:42

ERA5 2016–2025, Open-Meteo

Peas in nearby cities

Around Portland, Maine, Boston is 6 days earlier and Montpelier 23 days later.

CityDistanceDateDifference
Augusta82 km2 April – 21 August8 days later
Concord115 km1 April – 18 August7 days later
Manchester (United States)122 km1 April – 20 August7 days later
Boston159 km19 March – 31 August6 days earlier
Bangor179 km3 April – 21 August9 days later
Montpelier196 km17 April – 4 August23 days later

Where to buy peas seeds in Portland, Maine

Seeds go straight into the bed from 25 March to 22 August; buy them before that. Within 15 km of Portland, Maine OpenStreetMap lists 5 garden centres, 6 markets and 1 farm shop (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

Questions

When to plant peas in Portland, Maine?

In Portland, Maine, peas: sow straight into the bed from 25 March to 22 August.

When is the last spring frost in Portland, Maine?

Last spring frost around 15 April, first autumn frost around 4 November.

Other crops in Portland, Maine, with their dates