When to plant garlic in Aosta: 11 August – 22 October

In Aosta, garlic: plant from 11 August to about 22 October. For planting stock, the places nearby include Agricenter (garden centre, 3 km); addresses and opening hours are below.

Garlic is best planted early in the window: cloves planted late make smaller bulbs. Late planting works only while the soil is not frozen. Mulch after planting.

The date is about two weeks before the average daily temperature here falls below 0 °C (ten years of weather): an estimate, not the day the ground freezes, and a cold spell can freeze it earlier. Sources: UVM Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Garlic in Aosta: soil, season and weather

Garlic goes into the ground in Aosta from 11 August to about 22 October; the window opens a month before the first autumn frost. Nights then average below 0 °C in November–May; the coldest, January, averages -11.9 °C.

Planting	11 August – 22 October
First autumn frost	10 September
Coldest nights	January, -11.9 °C
Soil back at 5 °C in spring	23 May
Harvest (card)	about 8 months after planting: April
Daylight	14:21 on 11 August
Daylight at the winter solstice	8:40

The same dates in Aosta hold for Tulip, Daffodil, Crocus and Hyacinth.

Garlic in Aosta: care after planting

Planted on 11 August: in the first weeks water every 7 days.

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

11 August — feed: nitrogen
8 September — feed: nitrogen

Pests and diseases of garlic to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Garlic in nearby cities

All the nearest cities on our list plant garlic later than Aosta; the closest date is in Sion, 39 days later.

City	Distance	Date	Difference
Sion	55 km	19 September – 19 November	39 days later
Turin	80 km	21 October – end of December	71 days later
Annecy	94 km	15 October – end of December	65 days later
Lausanne	102 km	21 October – end of December	71 days later
Geneva	105 km	18 October – end of December	68 days later
Novara	106 km	23 October – end of December	73 days later

Where to buy garlic for planting in Aosta

Planting stock goes into the ground from 11 August to about 22 October; buy it before that. 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

Questions