When to plant cucumbers in Le Mans: 31 May – 9 September

In Le Mans, cucumber: sow for seedlings from 12 April to 12 August; plant into a greenhouse from 10 May to 9 September; plant out into open ground from 31 May to 9 September.

Cucumber in Le Mans: soil, season and weather

In Le Mans the soil, not frost, sets the date: the last frost is over around 2 April, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 31 May, 59 days later.

Last spring frost	2 April
Top 7 cm of soil at 18 °C	31 May, 59 days after the last frost
Into an unheated greenhouse	10 May – 9 September; May outside: 9.6 °C at night, 19.3 °C by day; card 18–25 °C
First autumn frost	24 November, 177 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	4 July – 13 October
Days left for picking	143
Daylight	14:35 on 3 May, 15:44 on 31 May
Watering outdoors when fruiting (card)	every 2 days; the driest month, July, has 7 rainy days

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

Cucumber in Le Mans: care after planting

Planted on 31 May: in the first weeks water every 4 days.

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

7 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 Le Mans during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, July, averages 25.3 °C. Months that stay below 18 °C even by day on average: October (17.3 °C) and November (11.7 °C). Nights average below 18 °C in every month of the season, from 5.5 °C to 15 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.3	9.6	69	13	15:09
June	23.5	13.7	65	11	16:01
July	25.3	15	40	7	15:41
August	25.2	14.9	46	8	14:21
September	21.9	12.5	63	10	12:38
October	17.3	9.6	79	12	10:55
November	11.7	5.5	74	12	9:17

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Le Mans, Angers is 3 days earlier and Caen 15 days later.

City	Distance	Date	Difference
Tours	77 km	31 May – 12 September	same day
Angers	81 km	28 May – 12 September	3 days earlier
Orléans	127 km	2 June – 10 September	2 days later
Caen	139 km	15 June – 20 September	15 days later
Rennes	140 km	1 June – 13 September	1 day later
Nantes	157 km	28 May – 14 September	3 days earlier

Where to buy cucumber plants and seeds near Le Mans

Buy plants ready to set out from 31 May to 9 September (from 10 May to 9 September for an unheated greenhouse); seed for raising your own is sown from 12 April to 12 August. Within 15 km of Le Mans OpenStreetMap lists 9 garden centres, 16 markets and 8 farm shops (collected 27 October 2026).

Jacobins' market — market
Avenue de Paderborn, 72000 Le Mans · Fri, Sun 07:00–13:00 · 1 km · lemans.fr
Marché — market
Place Édouard de la Boussinière, 72000 Le Mans · Tue 07:00–13:00 · 2 km · lemans.fr
Marché de Pontlieue — market
Place Henri Vaillant, 72100 Le Mans · Wed, Sun 07:00–13:00 · 2 km · lemans.fr
Marché — market
Place de la République, 72000 Le Mans · Thu 16:00–20:00 · 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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