When to plant pumpkins in Neuchâtel: 6 June – 3 August

In Neuchâtel, pumpkin: sow for seedlings from 4 April to 22 June; plant into a greenhouse from 16 May to 3 August; plant out into open ground from 6 June to 3 August. For plants and seeds, the places nearby include Ferme de trois-rods (farm shop, 8 km); addresses and opening hours are below.

Pumpkin in Neuchâtel: soil, season and weather

In Neuchâtel the soil, not frost, sets the date: the last frost is over around 29 March, but the top 7 cm of soil reaches 18 °C — the minimum on the pumpkin card — only around 6 June, 69 days later.

Last spring frost	29 March
Top 7 cm of soil at 18 °C	6 June, 69 days after the last frost
First autumn frost	28 November, 175 days after the start
Days in the bed to the first harvest (card)	75
First harvest, if planted in this window	20 August – 17 October
Days left for picking	100
Daylight	14:06 on 25 April, 15:44 on 6 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, September, has 12 rainy days

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

Pumpkin in Neuchâtel: care after planting

Planted on 6 June: in the first weeks water every 4 days.

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

27 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 Neuchâtel during the pumpkin season

About 651 mm of rain falls in the season; September is the driest month (96 mm) and June the wettest (115 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.7	14.7	115	15	15:52
July	25.1	16.5	112	13	15:32
August	25.1	16.6	101	13	14:16
September	20.5	13.2	96	12	12:37
October	15.6	9.2	113	13	10:57
November	9.2	4.3	114	14	9:24

ERA5 2016–2025, Open-Meteo

Pumpkin in nearby cities

Around Neuchâtel, Mulhouse is 5 days earlier and Fribourg 15 days later.

City	Distance	Date	Difference
Fribourg	27 km	21 June – 12 July	15 days later
Bern	40 km	21 June – 9 July	15 days later
Lausanne	57 km	19 June – 26 July	13 days later
Besançon	75 km	3 June – 24 July	3 days earlier
Basel	81 km	5 June – 26 July	1 day earlier
Mulhouse	90 km	1 June – 23 July	5 days earlier

Where to buy pumpkin plants and seeds near Neuchâtel

Buy plants ready to set out from 6 June to 3 August (from 16 May to 3 August for an unheated greenhouse); seed for raising your own is sown from 4 April to 22 June. Within 15 km of Neuchâtel OpenStreetMap lists 4 garden centres, 3 farm-supply shops, 2 plant nurseries, 2 markets and 20 farm shops (collected 27 October 2026).

Ferme de trois-rods — farm shop
public holidays, Mon–Sun 07:00–20:00 · 8 km
Desaules — garden centre
8 km · desaules-horticulture.ch
Pépinière d'Agnens — plant nursery
11 km · pepiniere-agnens.ch
Forster Baumschule — plant nursery
14 km · forsterbaumschule.ch

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