When to plant zucchini in Stuttgart: 5 June – 22 August

In Stuttgart, zucchini: sow for seedlings from 24 April to 1 August; plant into a greenhouse from 15 May to 22 August; plant out into open ground from 5 June to 22 August. For plants and seeds, the places nearby include Württemberg Alpakas (farm supply, 7 km) and Genusslädle (farm supply, 15 km); addresses and opening hours are below.

Zucchini in Stuttgart: soil, season and weather

In Stuttgart the soil, not frost, sets the date: the last frost is over around 19 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 5 June, 47 days later.

Last spring frost	19 April
Top 7 cm of soil at 18 °C	5 June, 47 days after the last frost
First autumn frost	8 November, 156 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	11 July – 27 September
Days left for picking	120
Daylight	15:15 on 15 May, 15:59 on 5 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, October, has 12 rainy days

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

Zucchini in Stuttgart: care after planting

Planted on 5 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Stuttgart during the zucchini season

About 452 mm of rain falls in the season; October is the driest month (66 mm) and June the wettest (88 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.9	13.1	88	14	16:08
July	24.9	14.2	78	13	15:47
August	25	14.4	84	12	14:25
September	20.8	10.7	70	11	12:39
October	16	7.1	66	12	10:53
November	9.1	2	66	13	9:13

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Stuttgart, Karlsruhe is 6 days earlier and St. Gallen 10 days later.

City	Distance	Date	Difference
Karlsruhe	62 km	30 May – 2 September	6 days earlier
Mannheim	94 km	1 June – 3 September	4 days earlier
Strasbourg	108 km	1 June – 3 September	4 days earlier
Freiburg im Breisgau	132 km	4 June – 30 August	1 day earlier
Augsburg	135 km	13 June – 23 August	8 days later
St. Gallen	152 km	15 June – 1 September	10 days later

Where to buy zucchini plants and seeds near Stuttgart

Buy plants ready to set out from 5 June to 22 August (from 15 May to 22 August for an unheated greenhouse); seed for raising your own is sown from 24 April to 1 August. Within 15 km of Stuttgart OpenStreetMap lists 34 garden centres, 2 farm-supply shops, 10 plant nurseries, 28 markets and 99 farm shops (collected 28 October 2026).

Württemberg Alpakas — farm supply
Württembergstraße, 70327 Stuttgart · 7 km · wuerttemberg-alpakas.de
Genusslädle — farm supply
24/7 · 15 km
Markthalle — market
Dorotheenstraße 4, 70173 Stuttgart · Mon–Fri 07:30–18:30, Sat 07:00–17:00 · 0 km · markthalle-stuttgart.de
Markthalle Waiblingen — market
Lange Straße 30, 71332 Waiblingen · Mon–Fri 09:00–18:00; Sat 09:00–13:00 · 12 km · markthalle-waiblingen.de

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.

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