When to plant watermelons in Freiburg im Breisgau: 4 June – 7 August

In Freiburg im Breisgau, watermelon: sow for seedlings from 16 April to 10 July; plant into a greenhouse from 14 May to 7 August; plant out into open ground from 4 June to 7 August.

Watermelon in Freiburg im Breisgau: soil, season and weather

In Freiburg im Breisgau the soil, not frost, sets the date: the last frost is over around 12 April, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 4 June, 53 days later.

Last spring frost	12 April
Top 7 cm of soil at 18 °C	4 June, 53 days after the last frost
Into an unheated greenhouse	14 May – 7 August; May outside: 9 °C at night, 19 °C by day; card 18–35 °C
First autumn frost	16 November, 165 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	2 August – 5 October
Days left for picking	106
Daylight	14:47 on 7 May, 15:50 on 4 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, September, has 11 rainy days

The same dates in Freiburg im Breisgau hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Freiburg im Breisgau: care after planting

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

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

4 June — feed: balanced (NPK)

Pests and diseases of watermelon 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 Freiburg im Breisgau during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 25.5 °C. Months that stay below 18 °C even by day on average: October (16.5 °C) and November (9.6 °C). Nights average below 18 °C in every month of the season, from 3.1 °C to 15.4 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	24.2	14.1	97	14	16:01
July	25.5	15.3	90	13	15:40
August	25.5	15.4	83	11	14:21
September	21.2	11.7	77	11	12:38
October	16.5	8.1	83	12	10:55
November	9.6	3.1	93	14	9:18

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Freiburg im Breisgau, Mulhouse is 3 days earlier and Lucerne 24 days later.

City	Distance	Date	Difference
Colmar	38 km	16 June – 8 August	12 days later
Mulhouse	47 km	1 June – 8 August	3 days earlier
Basel	52 km	5 June – 11 August	1 day later
Strasbourg	65 km	1 June – 11 August	3 days earlier
Zurich	85 km	11 June – 7 August	7 days later
Lucerne	110 km	28 June – 11 July	24 days later

Where to buy watermelon plants and seeds near Freiburg im Breisgau

Buy plants ready to set out from 4 June to 7 August (from 14 May to 7 August for an unheated greenhouse); seed for raising your own is sown from 16 April to 10 July. Within 15 km of Freiburg im Breisgau OpenStreetMap lists 21 garden centres, 2 farm-supply shops, 3 plant nurseries, 30 markets and 51 farm shops (collected 28 October 2026).

Wochenmarkt — market
Wed, Sat 07:00–13:00; public holidays closed · 2 km
Bauernmarkt — market
Thu 14:30–16:30; public holidays closed · 2 km
Wochenmarkt in der Fabrik — market
Sat 09:00–13:00; public holidays closed · 2 km
Sankt Georgener Bauernmarkt — market
Sat 08:00–13:00; public holidays closed · 3 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.

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