When to plant garlic in Colmar: 18 October – end of December

In Colmar, garlic: plant from 18 October to the end of December. For planting stock, the places nearby include ETS Michel (farm supply, 4 km) and E.SCHAECHTELIN & Cie (farm supply, 9 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 average daily temperature here stays above 0 °C all winter, and at least two months average 10 °C or less: the cold garlic needs, one to two months at 0–10 °C (RHS). The two-month threshold is our rule of thumb. Sources: UVM Extension, UNH Extension, RHS.

Garlic in Colmar: soil, season and weather

Garlic goes into the ground in Colmar from 18 October to the end of December; the window opens a month before the first autumn frost. Nights then average below 0 °C in January; the coldest, January, averages -1.5 °C.

Planting	18 October – end of December
First autumn frost	17 November
Coldest nights	January, -1.5 °C
Soil back at 5 °C in spring	4 February
Harvest (card)	about 8 months after planting: June
Daylight	10:44 on 18 October
Daylight at the winter solstice	8:22

Garlic in Colmar: care after planting

Planted on 18 October: in the first weeks water every 7 days.

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

18 October — feed: nitrogen
15 November — 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

Around Colmar, Freiburg im Breisgau is 1 day earlier and Basel 3 days later.

City	Distance	Date	Difference
Mulhouse	37 km	18 October – end of December	same day
Freiburg im Breisgau	38 km	17 October – end of December	1 day earlier
Basel	60 km	21 October – end of December	3 days later
Strasbourg	62 km	21 October – end of December	3 days later
Nancy	110 km	18 October – end of December	same day
Zurich	118 km	17 October – end of December	1 day earlier

Where to buy garlic for planting in Colmar

Planting stock goes into the ground from 18 October to the end of December; buy it before that. Within 15 km of Colmar OpenStreetMap lists 10 garden centres, 6 farm-supply shops, 1 plant nursery, 1 market and 8 farm shops (collected 27 October 2026).

Maltala — farm supply
Rue des Artisans 3A, 68750 Bergheim · 12 km
ETS Michel — farm supply
Mon–Fri 09:00–12:00, 14:00–18:00; Sat 09:00–12:00 · 4 km
E.SCHAECHTELIN & Cie — farm supply
Mon–Fri 08:00–12:00, 13:30–17:30 · 9 km
Le Cellier des Montagnes — farm shop
Rue de l'Europe 4, 68650 Lapoutroie · Wed–Mon 09:00–12:30, 14:30–19:00 · 15 km · lecellierdesmontagnes.fr

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