Greenly Garden

When to plant zucchini in Liège: 4 June – 2 September

In Liège, zucchini: sow for seedlings from 23 April to 12 August; plant into a greenhouse from 14 May to 2 September; plant out into open ground from 4 June to 2 September. For plants and seeds, the places nearby include Elevage Limousin Rouxhet et fils (farm shop, 9 km) and Ferme de Gérard Sart (farm shop, 15 km); addresses and opening hours are below.

Zucchini in Liège: soil, season and weather

In Liège the soil, not frost, sets the date: the last frost is over around 16 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 4 June, 49 days later.

Last spring frost16 April
Top 7 cm of soil at 18 °C4 June, 49 days after the last frost
First autumn frost19 November, 168 days after the start
Days in the bed to the first harvest (card)36
First harvest, if planted in this window10 July – 8 October
Days left for picking132
Daylight15:25 on 14 May, 16:15 on 4 June
Watering outdoors when fruiting (card)every 3 days; the driest month, August, has 12 rainy days

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

Zucchini in Liège: care after planting

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

Pests and diseases of zucchini to watch for:

Weather in Liège during the zucchini season

About 438 mm of rain falls in the season; August is the driest month (66 mm) and June the wettest (84 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
June22.513.1841216:27
July23.314721316:04
August23.514.4661214:35
September20.311.7741212:41
October15.69.2741310:48
November104.568149:00

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Liège, Hasselt is 5 days earlier and Namur 7 days later.

CityDistanceDateDifference
Hasselt37 km30 May – 1 September5 days earlier
Namur53 km11 June – 29 August7 days later
Leuven67 km31 May – 5 September4 days earlier
Charleroi84 km10 June – 29 August6 days later
Brussels89 km8 June – 5 September4 days later
Ettelbruck95 km6 June – 29 August2 days later

Where to buy zucchini plants and seeds near Liège

Buy plants ready to set out from 4 June to 2 September (from 14 May to 2 September for an unheated greenhouse); seed for raising your own is sown from 23 April to 12 August. Within 15 km of Liège OpenStreetMap lists 11 garden centres, 3 plant nurseries, 7 markets and 12 farm shops (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

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

When to plant zucchini in Liège?

In Liège, zucchini: sow for seedlings from 23 April to 12 August; plant into a greenhouse from 14 May to 2 September; plant out into open ground from 4 June to 2 September.

When to sow zucchini for seedlings in Liège?

Sow for seedlings from 23 April to 12 August.

When is the last spring frost in Liège?

Last spring frost around 16 April, first autumn frost around 19 November.

Other crops in Liège, with their dates