When to plant zucchini in Metz: 4 June – 31 August

In Metz, zucchini: sow for seedlings from 23 April to 10 August; plant into a greenhouse from 14 May to 31 August; plant out into open ground from 4 June to 31 August. For plants and seeds, the places nearby include Ferme Bel Air (farm shop, 0 km) and Cueillette de peltre (farm shop, 5 km); addresses and opening hours are below.

Zucchini in Metz: soil, season and weather

In Metz the soil, not frost, sets the date: the last frost is over around 15 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 4 June, 50 days later.

Last spring frost	15 April
Top 7 cm of soil at 18 °C	4 June, 50 days after the last frost
First autumn frost	17 November, 166 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	10 July – 6 October
Days left for picking	130
Daylight	15:14 on 14 May, 16:00 on 4 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, August, has 10 rainy days

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

Zucchini in Metz: 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 Metz during the zucchini season

About 427 mm of rain falls in the season; August is the driest month (54 mm) and June the wettest (78 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.8	13.6	78	12	16:12
July	25.1	14.7	70	10	15:50
August	25.5	15.1	54	10	14:26
September	21.3	11.5	74	10	12:39
October	16	8.1	74	12	10:52
November	9.4	3.5	77	14	9:10

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Metz, Strasbourg is 3 days earlier and Esch-sur-Alzette 11 days later.

City	Distance	Date	Difference
Esch-sur-Alzette	45 km	15 June – 1 September	11 days later
Nancy	49 km	3 June – 31 August	1 day earlier
Luxembourg	55 km	7 June – 1 September	3 days later
Saarbrücken	60 km	3 June – 1 September	1 day earlier
Ettelbruck	81 km	6 June – 29 August	2 days later
Strasbourg	130 km	1 June – 3 September	3 days earlier

Where to buy zucchini plants and seeds near Metz

Buy plants ready to set out from 4 June to 31 August (from 14 May to 31 August for an unheated greenhouse); seed for raising your own is sown from 23 April to 10 August. Within 15 km of Metz OpenStreetMap lists 10 garden centres, 1 farm-supply shop, 10 markets and 11 farm shops (collected 27 October 2026).

La Patrotte — market
Thu 08:00–12:30 · 2 km
Ferme Bel Air — farm shop
Tue–Sat 09:00–18:30 · 0 km · fermebelair.fr
Cueillette de peltre — farm shop
Avenue de Strasbourg, 57245 Peltre · 5 km · cueillettedepeltre.fr
Mets Fermiers — farm shop
Wed–Fri 09:30–12:30, 14:00–18:30; Sat 09:30–13:00 · 7 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