When to plant watermelons in Bruges: 15 June – 21 August

In Bruges, watermelon: sow for seedlings from 27 April to 24 July; plant into a greenhouse from 25 May to 21 August; plant out into open ground from 15 June to 21 August. For plants and seeds, the places nearby include Groencentrum Brugge (garden centre, 3 km) and Handy Home Tuinhobby St Marie (garden centre, 9 km); addresses and opening hours are below.

Watermelon in Bruges: soil, season and weather

In Bruges the soil, not frost, sets the date: the last frost is over around 27 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 15 June, 80 days later.

Last spring frost	27 March
Top 7 cm of soil at 18 °C	15 June, 80 days after the last frost
Into an unheated greenhouse	25 May – 21 August; May outside: 9.3 °C at night, 16.7 °C by day; card 18–35 °C
First autumn frost	30 November, 168 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	13 August – 19 October
Days left for picking	109
Daylight	15:42 on 18 May, 16:33 on 15 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 12 rainy days

The same dates in Bruges hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Bruges: care after planting

Planted on 15 June: in the first weeks water every 5 days.

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

15 June — feed: balanced (NPK)

Pests and diseases of watermelon 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 Bruges during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 22 °C. Months that stay below 18 °C even by day on average: October (15.8 °C) and November (10.6 °C). Nights average below 18 °C in every month of the season, from 5.7 °C to 14.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	20.3	12.9	63	11	16:33
July	21.5	14.5	61	12	16:09
August	22	14.8	67	12	14:38
September	19.8	12.7	72	13	12:42
October	15.8	10	82	13	10:46
November	10.6	5.7	90	15	8:56

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

All the nearest cities on our list plant watermelon earlier than Bruges; the closest date is in Lille, 4 days earlier.

City	Distance	Date	Difference
Ghent	39 km	31 May – 15 August	15 days earlier
Lille	65 km	11 June – 12 August	4 days earlier
Antwerp	82 km	31 May – 13 August	15 days earlier
Brussels	89 km	8 June – 13 August	7 days earlier
Mons	99 km	10 June – 10 August	5 days earlier
Leuven	110 km	31 May – 13 August	15 days earlier

Where to buy watermelon plants and seeds near Bruges

Buy plants ready to set out from 15 June to 21 August (from 25 May to 21 August for an unheated greenhouse); seed for raising your own is sown from 27 April to 24 July. Within 15 km of Bruges OpenStreetMap lists 12 garden centres, 7 plant nurseries, 1 market and 6 farm shops (collected 27 October 2026).

Krok-Eat — farm shop
15 km · krokeat.be
Hoeve Colpaert — farm shop
12 km
Groencentrum Brugge — garden centre
Zandstraat 374, 8200 Sint-Andries · Mon 13:30–18:30; Tue–Fri 09:00–18:30; Sat 09:00–18:00; public holidays, Sun 09:30–12:30 · 3 km · groencentrum.be
Handy Home Tuinhobby St Marie — garden centre
Sijselestraat 48A · Mon–Sat 08:30–12:00, 13:30–18:00 · 9 km · tuinhobbystmarie.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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