When to plant pumpkins in Mulhouse: 1 June – 23 July

In Mulhouse, pumpkin: sow for seedlings from 30 March to 11 June; plant into a greenhouse from 11 May to 23 July; plant out into open ground from 1 June to 23 July. For plants and seeds, the places nearby include Jardinerie Éthique (garden centre, 1 km) and Truffaut (garden centre, 6 km); addresses and opening hours are below.

Pumpkin in Mulhouse: soil, season and weather

In Mulhouse the soil, not frost, sets the date: the last frost is over around 6 April, but the top 7 cm of soil reaches 18 °C — the minimum on the pumpkin card — only around 1 June, 56 days later.

Last spring frost	6 April
Top 7 cm of soil at 18 °C	1 June, 56 days after the last frost
First autumn frost	17 November, 169 days after the start
Days in the bed to the first harvest (card)	75
First harvest, if planted in this window	15 August – 6 October
Days left for picking	94
Daylight	13:53 on 20 April, 15:44 on 1 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, September, has 10 rainy days

The same dates in Mulhouse hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Watermelon.

Pumpkin in Mulhouse: care after planting

Planted on 1 June: in the first weeks water every 4 days.

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

22 June — feed: nitrogen

Pests and diseases of pumpkin 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 Mulhouse during the pumpkin season

About 423 mm of rain falls in the season; September is the driest month (60 mm) and November the wettest (83 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	24.9	14.5	77	13	15:59
July	26.3	15.6	64	11	15:38
August	26.4	15.5	67	11	14:20
September	22	11.9	60	10	12:38
October	16.7	7.9	72	11	10:55
November	9.6	2.9	83	13	9:19

ERA5 2016–2025, Open-Meteo

Pumpkin in nearby cities

1 of the nearest cities share Mulhouse's date.

City	Distance	Date	Difference
Basel	29 km	5 June – 26 July	4 days later
Colmar	37 km	16 June – 23 July	15 days later
Freiburg im Breisgau	47 km	4 June – 22 July	3 days later
Bern	89 km	21 June – 9 July	20 days later
Neuchâtel	90 km	6 June – 3 August	5 days later
Strasbourg	96 km	1 June – 26 July	same day

Where to buy pumpkin plants and seeds near Mulhouse

Buy plants ready to set out from 1 June to 23 July (from 11 May to 23 July for an unheated greenhouse); seed for raising your own is sown from 30 March to 11 June. Within 15 km of Mulhouse OpenStreetMap lists 12 garden centres, 2 markets and 7 farm shops (collected 27 October 2026).

Ferme Boetsch-Wolf — farm shop
10 km
Trèfle Vert — garden centre
Rue de l'Ill 12, 68130 Altkirch · Mon–Fri 09:00–12:00, 14:00–18:30; Sat 09:00–18:00 · 15 km
Truffaut — garden centre
Mon–Fri 09:00–12:30, 14:00–19:00; Sat 09:00–19:00 · 6 km · truffaut.com
Jardinerie Éthique — garden centre
Rue de l'Arsenal 24, 68100 · 1 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