When to plant cucumbers in Ghent: 31 May – 9 September

In Ghent, 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. For plants and seeds, the places nearby include Aveve (garden centre, 9 km) and Intratuin (garden centre, 11 km); addresses and opening hours are below.

Cucumber in Ghent: soil, season and weather

In Ghent the soil, not frost, sets the date: the last frost is over around 12 April, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 31 May, 49 days later.

Last spring frost	12 April
Top 7 cm of soil at 18 °C	31 May, 49 days after the last frost
Into an unheated greenhouse	10 May – 9 September; May outside: 8.8 °C at night, 18.7 °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	14:53 on 3 May, 16:12 on 31 May
Watering outdoors when fruiting (card)	every 2 days; the driest month, May, has 11 rainy days

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

Cucumber in Ghent: 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 Ghent during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, August, averages 23.5 °C. Months that stay below 18 °C even by day on average: October (15.9 °C) and November (10.3 °C). Nights average below 18 °C in every month of the season, from 5 °C to 14.4 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	18.7	8.8	58	11	15:32
June	22.5	12.8	74	11	16:31
July	23.2	14	62	12	16:08
August	23.5	14.4	61	12	14:37
September	20.5	12	59	10	12:42
October	15.9	9.4	73	13	10:47
November	10.3	5	70	14	8:57

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

2 of the nearest cities share Ghent's date.

City	Distance	Date	Difference
Bruges	39 km	15 June – 15 September	15 days later
Brussels	49 km	8 June – 7 September	8 days later
Antwerp	51 km	31 May – 7 September	same day
Lille	66 km	11 June – 6 September	11 days later
Mons	69 km	10 June – 4 September	10 days later
Leuven	71 km	31 May – 7 September	same day

Where to buy cucumber plants and seeds near Ghent

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 Ghent OpenStreetMap lists 31 garden centres, 2 plant nurseries, 8 markets and 9 farm shops (collected 27 October 2026).

Aveve — garden centre
Gentsesteenweg 126, 9800 Deinze · Mon–Fri 09:00–18:30; Sat 09:00–18:00 · 15 km · aveve.be
Aveve — garden centre
Dekenijstraat 31, 9080 Lochristi · Mon–Wed, Fri 08:30–12:00, 13:30–18:30; Thu 08:30–12:00; Sat 08:30–18:00 · 9 km · aveve.be
Intratuin — garden centre
Grote Baan 249 · Mon 09:30–16:00; Wed–Sun 09:30–18:00 · 11 km · intratuin.be
Aveve — garden centre
Oosterzelesteenweg 1,3 · Mon–Fri 09:00–18:30; Sat 09:00–18:00 · 12 km · aveve.be

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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