When to plant zucchini in Graz: 8 June – 24 August

In Graz, zucchini: sow for seedlings from 27 April to 3 August; plant into a greenhouse from 18 May to 24 August; plant out into open ground from 8 June to 24 August.

Zucchini 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 zucchini 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
First autumn frost	10 November, 155 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	14 July – 29 September
Days left for picking	119
Daylight	15:10 on 18 May, 15:47 on 8 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, October, has 8 rainy days

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

Zucchini in Graz: care after planting

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

Pests and diseases of zucchini to watch for:

Weather in Graz during the zucchini season

About 528 mm of rain falls in the season; October is the driest month (56 mm) and September the wettest (110 mm).

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

Zucchini in nearby cities

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

City	Distance	Date	Difference
Klagenfurt	99 km	3 July – 8 July	25 days later
Vienna	145 km	8 June – 26 August	same day
Zagreb	146 km	28 May – 5 September	11 days earlier
Linz	163 km	4 June – 26 August	4 days earlier
Bratislava	173 km	31 May – 30 August	8 days earlier
Salzburg	198 km	9 June – 14 August	1 day later

Where to buy zucchini plants and seeds near Graz

Buy plants ready to set out from 8 June to 24 August (from 18 May to 24 August for an unheated greenhouse); seed for raising your own is sown from 27 April to 3 August. Within 15 km of Graz OpenStreetMap lists 24 garden centres, 5 plant nurseries, 30 markets and 47 farm shops (collected 28 October 2026).

derbauernmarkt — market
Leonhardplatz 14, 8010 Graz · Wed 12:00–16:00 · 2 km · derbauernmarkt.wordpress.com
Bauernmarkt Seiersberg — market
Sandgrubenweg 4-10, 8055 Seiersberg-Pirka · Fri 12:00–17:00 · 7 km · eberl-hof.at
Biobauernmarkt Herz Jesu — market
Tue 14:00–18:00 · 1 km · facebook.com
Bauernmarkt St. Peter — market
St.-Peter-Pfarrweg 35, 8010 Graz · Mar–Nov Tue 12:00–19:00; Sat 06:00–13:00 · 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.

Questions