When to plant cucumbers in Graz: 8 June – 26 August

In Graz, cucumber: sow for seedlings from 20 April to 29 July; plant into a greenhouse from 18 May to 26 August; plant out into open ground from 8 June to 26 August. For plants and seeds, the places nearby include Samen Köller (garden centre, 0 km) and Bellaflora (garden centre, 5 km); addresses and opening hours are below.

Cucumber in Graz: soil, season and weather

In Graz the soil, not frost, sets the date: the last frost is over around 16 April, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 8 June, 53 days later.

Last spring frost	16 April
Top 7 cm of soil at 18 °C	8 June, 53 days after the last frost
Into an unheated greenhouse	18 May – 26 August; May outside: 9 °C at night, 19 °C by day; card 18–25 °C
First autumn frost	10 November, 155 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	12 July – 29 September
Days left for picking	121
Daylight	14:53 on 11 May, 15:47 on 8 June
Watering outdoors when fruiting (card)	every 2 days; the driest month, October, has 8 rainy days

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

Cucumber in Graz: care after planting

Planted on 8 June: in the first weeks water every 4 days.

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

15 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 Graz during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, July, averages 26.1 °C. Months that stay below 18 °C even by day on average: October (16.2 °C) and November (8.9 °C). Nights average below 18 °C in every month of the season, from 1.2 °C to 15.5 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	24.9	14.3	99	13	15:53
July	26.1	15.5	94	13	15:33
August	25.8	15.4	108	12	14:16
September	20.9	11.2	110	11	12:37
October	16.2	6.4	56	8	10:57
November	8.9	1.2	61	9	9:23

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Graz, Zagreb is 11 days earlier and Klagenfurt 25 days later.

City	Distance	Date	Difference
Klagenfurt	99 km	3 July – 10 July	25 days later
Vienna	145 km	8 June – 28 August	same day
Zagreb	146 km	28 May – 7 September	11 days earlier
Linz	163 km	4 June – 28 August	4 days earlier
Bratislava	173 km	31 May – 1 September	8 days earlier
Salzburg	198 km	9 June – 16 August	1 day later

Where to buy cucumber plants and seeds near Graz

Buy plants ready to set out from 8 June to 26 August (from 18 May to 26 August for an unheated greenhouse); seed for raising your own is sown from 20 April to 29 July. Within 15 km of Graz OpenStreetMap lists 24 garden centres, 5 plant nurseries, 30 markets and 47 farm shops (collected 28 October 2026).

Samen Köller — garden centre
Südtiroler Platz 1, 8020 Graz · Mon–Fri 10:00–18:00; Sat 10:00–15:00 · 0 km
Bellaflora — garden centre
Weblinger Gürtel 26, 8054 Graz · Mon–Fri 09:00–18:00; Sat 09:00–17:00 · 5 km · bellaflora.at
Kölbl Blumen — garden centre
Kalsdorfer Straße 6, 8072 Fernitz-Mellach · Mon–Fri 08:00–18:00; Sat 08:00–17:00 · 12 km · koelblumen.at
Garten Kochauf — garden centre
Hochstraße 4, 8501 Lieboch · Mon–Fri 09:00–18:00; Sat 09:00–16:00 · 14 km · kochauf.at

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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