When to plant zucchini in Charleroi: 10 June – 29 August

In Charleroi, zucchini: sow for seedlings from 29 April to 8 August; plant into a greenhouse from 20 May to 29 August; plant out into open ground from 10 June to 29 August.

Zucchini in Charleroi: soil, season and weather

In Charleroi the soil, not frost, sets the date: the last frost is over around 13 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 10 June, 58 days later.

Last spring frost	13 April
Top 7 cm of soil at 18 °C	10 June, 58 days after the last frost
First autumn frost	15 November, 158 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	16 July – 4 October
Days left for picking	122
Daylight	15:40 on 20 May, 16:20 on 10 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, August, has 12 rainy days

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

Zucchini in Charleroi: care after planting

Planted on 10 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Charleroi during the zucchini season

About 418 mm of rain falls in the season; August is the driest month (58 mm) and June the wettest (78 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	21.8	12.4	78	11	16:25
July	22.9	13.5	71	11	16:02
August	23.3	13.9	58	12	14:33
September	20	11.4	65	10	12:41
October	15.3	8.8	78	13	10:48
November	9.7	4.3	68	13	9:02

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Charleroi, Hasselt is 11 days earlier and Namur 1 day later.

City	Distance	Date	Difference
Namur	31 km	11 June – 29 August	1 day later
Mons	35 km	10 June – 2 September	same day
Brussels	49 km	8 June – 5 September	2 days earlier
Leuven	55 km	31 May – 5 September	10 days earlier
Liège	84 km	4 June – 2 September	6 days earlier
Hasselt	86 km	30 May – 1 September	11 days earlier

Where to buy zucchini plants and seeds near Charleroi

Buy plants ready to set out from 10 June to 29 August (from 20 May to 29 August for an unheated greenhouse); seed for raising your own is sown from 29 April to 8 August. Within 15 km of Charleroi OpenStreetMap lists 15 garden centres, 2 farm-supply shops, 2 plant nurseries, 7 markets and 7 farm shops (collected 27 October 2026).

Place du Marché — market
Place du Marché, 6200 Châtelet · Tue 07:00–13:00 · 6 km
Marché de Chatelineau — market
Place Wilson, 6200 Châtelineau · 6 km
Marché — market
Mon · 8 km
Marché de Thy-le-Château — market
Fri 08:00–13:00 · 14 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