When to plant zucchini in Klagenfurt: 3 July – 8 July

In Klagenfurt, zucchini: sow for seedlings from 22 May to 17 June; plant into a greenhouse from 12 June to 8 July; plant out into open ground from 3 July to 8 July.

Zucchini in Klagenfurt: soil, season and weather

In Klagenfurt the soil, not frost, sets the date: the last frost is over around 21 May, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 3 July, 43 days later. 83 days separate planting out (3 July) from the first autumn frost (24 September); the card's 36 days to the first harvest leave 47 for picking, so a start 6 weeks late would still fit.

Last spring frost	21 May
Top 7 cm of soil at 18 °C	3 July, 43 days after the last frost
First autumn frost	24 September, 83 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	8 August – 13 August
Days left for picking	47
Daylight	15:47 on 12 June, 15:45 on 3 July
Watering outdoors when fruiting (card)	every 3 days; the driest month, August, has 15 rainy days

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

Zucchini in Klagenfurt: care after planting

Planted on 3 July: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Klagenfurt during the zucchini season

About 418 mm of rain falls in the season; August is the driest month (130 mm) and September the wettest (153 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
July	18.6	9.1	135	18	15:30
August	18.3	9	130	15	14:14
September	13.6	4.9	153	15	12:36

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

All the nearest cities on our list plant zucchini earlier than Klagenfurt; the closest date is in Salzburg, 24 days earlier.

City	Distance	Date	Difference
Graz	99 km	8 June – 24 August	25 days earlier
Udine	102 km	23 May – 5 September	41 days earlier
Trieste	115 km	5 June – 11 September	28 days earlier
Zagreb	157 km	28 May – 5 September	36 days earlier
Salzburg	163 km	9 June – 14 August	24 days earlier
Linz	188 km	4 June – 26 August	29 days earlier

Where to buy zucchini plants and seeds near Klagenfurt

Buy plants ready to set out from 3 July to 8 July (from 12 June to 8 July for an unheated greenhouse); seed for raising your own is sown from 22 May to 17 June. Within 15 km of Klagenfurt OpenStreetMap lists 11 garden centres, 1 plant nursery, 2 markets and 7 farm shops (collected 28 October 2026).

Ritschnig — garden centre
3 km
Stadtgartenamt — garden centre
3 km
Christbaumverkauf — plant nursery
14 km · christbaumplantage.at
Bauernstand Schaschel — farm shop
1 km · suedpark.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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