When to plant cucumbers in Poitiers: 30 May – 4 September

In Poitiers, cucumber: sow for seedlings from 11 April to 7 August; plant into a greenhouse from 9 May to 4 September; plant out into open ground from 30 May to 4 September. For plants and seeds, the places nearby include Truffaut (garden centre, 5 km) and Gamm Vert (garden centre, 7 km); addresses and opening hours are below.

Cucumber in Poitiers: soil, season and weather

In Poitiers the soil, not frost, sets the date: the last frost is over around 19 March, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 30 May, 72 days later.

Last spring frost	19 March
Top 7 cm of soil at 18 °C	30 May, 72 days after the last frost
Into an unheated greenhouse	9 May – 4 September; May outside: 10.1 °C at night, 19.5 °C by day; card 18–25 °C
First autumn frost	19 November, 173 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	3 July – 8 October
Days left for picking	139
Daylight	14:25 on 2 May, 15:31 on 30 May
Watering outdoors when fruiting (card)	every 2 days; the driest month, July, has 7 rainy days

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

Cucumber in Poitiers: care after planting

Planted on 30 May: in the first weeks water every 4 days.

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

6 June — 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 Poitiers during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, August, averages 26.1 °C. Months that stay below 18 °C even by day on average: October (17.9 °C) and November (12.1 °C). Nights average below 18 °C in every month of the season, from 5.7 °C to 15.6 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.5	10.1	82	13	15:00
June	23.9	14.2	76	11	15:49
July	25.9	15.6	32	7	15:29
August	26.1	15.5	34	7	14:14
September	22.6	12.7	57	10	12:36
October	17.9	9.9	84	11	10:58
November	12.1	5.7	80	13	9:26

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Poitiers, Angers is 2 days earlier and Limoges 7 days later.

City	Distance	Date	Difference
Tours	94 km	31 May – 12 September	1 day later
Limoges	109 km	6 June – 12 September	7 days later
Angers	120 km	28 May – 12 September	2 days earlier
La Rochelle	123 km	28 May – 27 September	2 days earlier
Le Mans	158 km	31 May – 9 September	1 day later
Nantes	160 km	28 May – 14 September	2 days earlier

Where to buy cucumber plants and seeds near Poitiers

Buy plants ready to set out from 30 May to 4 September (from 9 May to 4 September for an unheated greenhouse); seed for raising your own is sown from 11 April to 7 August. Within 15 km of Poitiers OpenStreetMap lists 6 garden centres, 2 farm-supply shops, 3 markets and 5 farm shops (collected 27 October 2026).

Truffaut — garden centre
Mon–Sat 09:30–12:30, 14:00–19:00; Sun 09:30–12:30, 14:30–18:30 · 5 km · truffaut.com
Gamm Vert — garden centre
Mon–Sat 09:00–12:00, 14:00–18:30 · 7 km
Marché dominical — market
Sun 08:30–12:30 · 8 km
Halles Notre-Dame — market
Mon–Sat 07:00–20:00 · 1 km

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.

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