When to plant zucchini in Aosta: 1 July – 5 August

In Aosta, zucchini: sow for seedlings from 20 May to 15 July; plant into a greenhouse from 10 June to 5 August; plant out into open ground from 1 July to 5 August. For plants and seeds, the places nearby include Agricenter (garden centre, 3 km); addresses and opening hours are below.

Zucchini in Aosta: soil, season and weather

In Aosta the soil, not frost, sets the date: the last frost is over around 6 June, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 1 July, 25 days later. 71 days separate planting out (1 July) from the first autumn frost (10 September); the card's 36 days to the first harvest leave 35 for picking, so a start 5 weeks late would still fit.

Last spring frost	6 June
Top 7 cm of soil at 18 °C	1 July, 25 days after the last frost
First autumn frost	10 September, 71 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	6 August – 10 September
Days left for picking	35
Daylight	15:38 on 10 June, 15:40 on 1 July
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 9 rainy days

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

Zucchini in Aosta: care after planting

Planted on 1 July: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Aosta during the zucchini season

About 202 mm of rain falls in the season; July is the driest month (58 mm) and September the wettest (73 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
July	18.8	7.6	58	9	15:23
August	18.7	7.3	71	10	14:10
September	14	3.8	73	11	12:35

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

All the nearest cities on our list plant zucchini earlier than Aosta; the closest date is in Sion, 3 days earlier.

City	Distance	Date	Difference
Sion	55 km	28 June – 2 August	3 days earlier
Turin	80 km	16 May – 3 September	46 days earlier
Annecy	94 km	19 June – 28 August	12 days earlier
Lausanne	102 km	19 June – 3 September	12 days earlier
Geneva	105 km	8 June – 31 August	23 days earlier
Novara	106 km	23 May – 5 September	39 days earlier

Where to buy zucchini plants and seeds near Aosta

Buy plants ready to set out from 1 July to 5 August (from 10 June to 5 August for an unheated greenhouse); seed for raising your own is sown from 20 May to 15 July. Within 15 km of Aosta OpenStreetMap lists 4 garden centres, 2 markets and 2 farm shops (collected 27 October 2026).

Agricenter — garden centre
Via / Rue de la Croix-Noire 79, 11020 Saint-Christophe · Mon–Sat 08:30–12:30; Mon–Fri 15:00–19:00 · 3 km
Mercato coperto / Halles d'Aoste — market
Piazza dei Cavalieri di Vittorio Veneto - Place des Chevaliers de Vittorio Veneto, 11100 Aosta / Aoste · Mon, Tue, Thu, Fri 07:30–14:00; Wed, Sat 07:00–15:00 · 1 km
Isa Vivai — garden centre
8 km · isavivai.com
Vivai Valdostani — garden centre
5 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