Greenly Garden

When to plant cucumbers in Kilkenny: 15 July – 5 September

In Kilkenny, cucumber: sow for seedlings from 27 May to 8 August; plant into a greenhouse from 24 June to 5 September; plant out into open ground from 15 July to 5 September. For plants and seeds, the places nearby include Tirlán Farmlife (farm shop, 13 km) and Skehana Hill Farm Shop (farm shop, 14 km); addresses and opening hours are below.

Cucumber in Kilkenny: soil, season and weather

In Kilkenny the soil, not frost, sets the date: the last frost is over around 7 April, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 15 July, 99 days later.

Last spring frost7 April
Top 7 cm of soil at 18 °C15 July, 99 days after the last frost
Into an unheated greenhouse24 June – 5 September; June outside: 10.2 °C at night, 17.7 °C by day; card 18–25 °C
First autumn frost20 November, 128 days after the start
Days in the bed to the first harvest (card)34
First harvest, if planted in this window18 August – 9 October
Days left for picking94
Daylight16:51 on 17 June, 16:24 on 15 July
Watering outdoors when fruiting (card)every 2 days; the driest month, July, has 15 rainy days

The same dates in Kilkenny hold for Bell Pepper, Eggplant, Zucchini, Pumpkin and Watermelon.

Cucumber in Kilkenny: care after planting

Planted on 15 July: in the first weeks water every 4 days.

Feeding, by the card’s schedule from that day:

  • 22 July — feed: nitrogen

Pests and diseases of cucumber to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Kilkenny during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, July, averages 18.9 °C. Months that stay below 18 °C even by day on average: September (16.2 °C), October (13.1 °C) and November (9.5 °C). Nights average below 18 °C in every month of the season, from 4.6 °C to 11.8 °C.

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
July18.911.8811516:24
August18.611.5901514:46
September16.29.8991412:44
October13.17.51131510:42
November9.54.697158:46

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Kilkenny, Waterford is 17 days earlier and Dublin 1 day later.

CityDistanceDateDifference
Waterford44 km28 June – 5 September17 days earlier
Limerick93 km6 July – 6 September9 days earlier
Athlone97 km13 July – 11 September2 days earlier
Dublin102 km16 July – 9 September1 day later
Cork118 km15 July – 6 Septembersame day
Galway139 km13 July – 13 September2 days earlier

Where to buy cucumber plants and seeds near Kilkenny

Buy plants ready to set out from 15 July to 5 September (from 24 June to 5 September for an unheated greenhouse); seed for raising your own is sown from 27 May to 8 August. Within 15 km of Kilkenny OpenStreetMap lists 5 garden centres, 12 farm-supply shops and 5 farm shops (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 cucumbers in Kilkenny?

In Kilkenny, cucumber: sow for seedlings from 27 May to 8 August; plant into a greenhouse from 24 June to 5 September; plant out into open ground from 15 July to 5 September.

When to sow cucumbers for seedlings in Kilkenny?

Sow for seedlings from 27 May to 8 August.

When is the last spring frost in Kilkenny?

Last spring frost around 7 April, first autumn frost around 20 November.

Other crops in Kilkenny, with their dates