When to plant garlic in Bonn: 20 October – end of December

In Bonn, garlic: plant from 20 October to the end of December. For planting stock, the places nearby include Wald und Wiesen Imkerei (farm shop, 6 km) and Hofladen Mandt (farm shop, 7 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 Bonn: soil, season and weather

Garlic goes into the ground in Bonn from 20 October to the end of December; the window opens a month before the first autumn frost. No month averages below 0 °C at night; the coldest nights, in January, average 0.8 °C.

Planting	20 October – end of December
First autumn frost	19 November
Coldest nights	January, 0.8 °C
Soil back at 5 °C in spring	8 January
Harvest (card)	about 8 months after planting: June
Daylight	10:29 on 20 October
Daylight at the winter solstice	7:57

Garlic in Bonn: care after planting

Planted on 20 October: in the first weeks water every 7 days.

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

20 October — feed: nitrogen
17 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 Bonn, Dortmund is 3 days earlier and Duisburg 3 days later.

City	Distance	Date	Difference
Cologne	25 km	21 October – end of December	1 day later
Düsseldorf	60 km	22 October – end of December	2 days later
Duisburg	81 km	23 October – end of December	3 days later
Essen	81 km	22 October – end of December	2 days later
Bochum	84 km	21 October – end of December	1 day later
Dortmund	90 km	17 October – end of December	3 days earlier

Where to buy garlic for planting in Bonn

Planting stock goes into the ground from 20 October to the end of December; buy it before that. Within 15 km of Bonn OpenStreetMap lists 32 garden centres, 4 farm-supply shops, 3 plant nurseries, 9 markets and 50 farm shops (collected 28 October 2026).

Bioland Hofladen Dorothee Hochgürtel — farm shop
Auf dem Acker 1b, 53343 Wachtberg · Sat 11:00–13:00 · 13 km · bioland-hochguertel.de
Wald und Wiesen Imkerei — farm shop
Henri-Spaak-Straße 177, 53347 Alfter · Wed 16:00–19:00; Fri 15:00–19:00; Sat 09:00–13:00 · 6 km · biohonigbonn.de
Hofladen Mandt — farm shop
Taubenweiherweg 4, 53347 Alfter · Mon–Fri 08:30–19:00; Sat 08:30–14:00; Sun 10:00–12:00 · 7 km · hofladen-mandt.de
Bioland Hof Schulz — farm shop
Blutpfad 3, 53332 Bornheim · Fri 08:00–18:00; Sat–Thu closed · 8 km · bioland-schulz.de

Questions