When to plant cucumbers in Wiesbaden: 30 May – 8 September

In Wiesbaden, cucumber: sow for seedlings from 11 April to 11 August; plant into a greenhouse from 9 May to 8 September; plant out into open ground from 30 May to 8 September. For plants and seeds, the places nearby include Pflanzen Kölle (garden centre, 4 km) and Baumschule Karl Schneider (garden centre, 6 km); addresses and opening hours are below.

Cucumber in Wiesbaden: soil, season and weather

In Wiesbaden the soil, not frost, sets the date: the last frost is over around 5 April, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 30 May, 55 days later.

Last spring frost	5 April
Top 7 cm of soil at 18 °C	30 May, 55 days after the last frost
Into an unheated greenhouse	9 May – 8 September; May outside: 9.9 °C at night, 19.9 °C by day; card 18–25 °C
First autumn frost	23 November, 177 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	3 July – 12 October
Days left for picking	143
Daylight	14:44 on 2 May, 16:00 on 30 May
Watering outdoors when fruiting (card)	every 2 days; the driest month, August, has 9 rainy days

The same dates in Wiesbaden hold for Bell Pepper, Eggplant, Zucchini, Pumpkin and Watermelon.

Cucumber in Wiesbaden: care after planting

Planted on 30 May: in the first weeks water every 4 days.

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

6 June — feed: nitrogen

Pests and diseases of cucumber 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 Wiesbaden during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, August, averages 26.1 °C. Months that stay below 18 °C even by day on average: October (15.7 °C) and November (9 °C). Nights average below 18 °C in every month of the season, from 3.4 °C to 15.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.9	9.9	66	12	15:24
June	25.1	14.7	59	11	16:21
July	25.9	15.7	64	10	15:59
August	26.1	15.8	56	9	14:32
September	21.6	12.1	56	9	12:41
October	15.7	8	63	13	10:49
November	9	3.4	57	13	9:04

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

1 of the nearest cities share Wiesbaden's date.

City	Distance	Date	Difference
Frankfurt	32 km	4 June – 2 September	5 days later
Mannheim	68 km	1 June – 5 September	2 days later
Bonn	108 km	4 June – 4 September	5 days later
Karlsruhe	120 km	30 May – 4 September	same day
Saarbrücken	130 km	3 June – 3 September	4 days later
Cologne	132 km	3 June – 5 September	4 days later

Where to buy cucumber plants and seeds near Wiesbaden

Buy plants ready to set out from 30 May to 8 September (from 9 May to 8 September for an unheated greenhouse); seed for raising your own is sown from 11 April to 11 August. Within 15 km of Wiesbaden OpenStreetMap lists 18 garden centres, 1 farm-supply shop, 6 plant nurseries, 17 markets and 28 farm shops (collected 28 October 2026).

Pflanzen Kölle — garden centre
Hagenauer Straße 38, 65203 Wiesbaden · Mon–Sat 09:00–19:00; Sun 10:00–15:00 · 4 km · pflanzen-koelle.de
Ahornblatt — garden centre
Untere Zahlbacher Straße 1a, 55131 Mainz · Sat 10:00–14:00 · 10 km · ahornblatt-garten.de
Gärtnerei Kalmenhof — garden centre
Grunerstraße 39, 65510 Idstein · Mon–Fri 08:00–12:00, Mon–Fri 13:00–16:00 · 15 km · vitos.de
Baumschule Karl Schneider — garden centre
Mittelpfad 7, 65205 Wiesbaden · 6 km · karlschneider.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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