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When to plant peas in Letterkenny: 9 March – 15 September

In Letterkenny, peas: sow straight into the bed from 9 March to 15 September. For seeds, the places nearby include Gary's Petworld and Garden Centre (garden centre, 2 km); addresses and opening hours are below.

Peas in Letterkenny: soil, season and weather

Peas tolerates light frost, so it goes in three weeks before the last frost (30 March); the top 7 cm of soil averages its minimum of 4 °C already in the first week of January.

Last spring frost30 March
Top 7 cm of soil at 4 °Calready in the first week of January
First autumn frost28 November, 264 days after the start
Days in the bed to the first harvest (card)74
First harvest, if planted in this window22 May – 28 November
Days left for picking190
Daylight11:19 on 9 March
Watering outdoors when fruiting (card)every 3 days; the driest month, April, has 15 rainy days

Peas in Letterkenny: care after planting

Planted on 9 March: in the first weeks water every 6 days.

Pests and diseases of peas to watch for:

Weather in Letterkenny during the peas season

About 926 mm of rain falls in the season; April is the driest month (77 mm) and August the wettest (126 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
March9.53.1951711:46
April11.74.4771514:05
May157.4831516:06
June16.810.11051717:20
July17.611.41151816:50
August17.711.51262015:01
September15.89.81021812:48
October12.87.91201810:35
November9.54.9103188:27

ERA5 2016–2025, Open-Meteo

Peas in nearby cities

Around Letterkenny, Athlone is 33 days earlier and Belfast 19 days later.

CityDistanceDateDifference
Derry26 km2 March – 8 September7 days earlier
Sligo91 km18 March – 8 September9 days later
Belfast122 km28 March – 6 September19 days later
Dundalk137 km27 February – 7 September10 days earlier
Athlone172 km4 February – 13 September33 days earlier
Dublin203 km17 March – 11 September8 days later

Where to buy peas seeds in Letterkenny

Seeds go straight into the bed from 9 March to 15 September; buy them before that. Within 15 km of Letterkenny OpenStreetMap lists 3 garden centres and 1 market (collected 28 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 Letterkenny?

In Letterkenny, peas: sow straight into the bed from 9 March to 15 September.

When is the last spring frost in Letterkenny?

Last spring frost around 30 March, first autumn frost around 28 November.

Other crops in Letterkenny, with their dates