When to plant zucchini in Antwerp: 31 May – 5 September

In Antwerp, zucchini: sow for seedlings from 19 April to 15 August; plant into a greenhouse from 10 May to 5 September; plant out into open ground from 31 May to 5 September.

Zucchini in Antwerp: soil, season and weather

In Antwerp the soil, not frost, sets the date: the last frost is over around 4 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 31 May, 57 days later.

Last spring frost	4 April
Top 7 cm of soil at 18 °C	31 May, 57 days after the last frost
First autumn frost	22 November, 175 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	6 July – 11 October
Days left for picking	139
Daylight	15:18 on 10 May, 16:13 on 31 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, August, has 12 rainy days

The same dates in Antwerp hold for Cucumber, Bell Pepper, Eggplant, Pumpkin and Watermelon.

Zucchini in Antwerp: care after planting

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

Pests and diseases of zucchini to watch for:

Weather in Antwerp during the zucchini season

About 496 mm of rain falls in the season; August is the driest month (59 mm) and October the wettest (80 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19	9	69	11	15:33
June	22.7	13.1	76	11	16:33
July	23.3	14.1	72	12	16:09
August	23.6	14.4	59	12	14:38
September	20.6	11.8	66	11	12:42
October	15.8	9.2	80	13	10:46
November	10.2	4.7	74	13	8:56

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Antwerp, Hasselt is 1 day earlier and Bruges 15 days later.

City	Distance	Date	Difference
Brussels	41 km	8 June – 5 September	8 days later
Leuven	43 km	31 May – 5 September	same day
Ghent	51 km	31 May – 7 September	same day
Hasselt	73 km	30 May – 1 September	1 day earlier
Bruges	82 km	15 June – 13 September	15 days later
Namur	90 km	11 June – 29 August	11 days later

Where to buy zucchini plants and seeds near Antwerp

Buy plants ready to set out from 31 May to 5 September (from 10 May to 5 September for an unheated greenhouse); seed for raising your own is sown from 19 April to 15 August. Within 15 km of Antwerp OpenStreetMap lists 32 garden centres, 5 plant nurseries, 12 markets and 10 farm shops (collected 27 October 2026).

Vrijdagmarkt — market
Vrijdagmarkt, 2000 Antwerpen · Fri · 0 km
Dokmarkt — market
Wed 11:00–21:00 · 1 km · dokmarkt.be
Bio / Farmers' Market — market
Sun 08:00–16:00; public holidays closed · 1 km
Sint-Franciscusplein — market
Sint-Franciscusplein · Tue 07:00–13:00 · 4 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.

Questions