When to plant hyacinths in Bielefeld: 19 October – end of December

In Bielefeld, hyacinth: plant from 19 October to the end of December. For planting stock, the places nearby include Die Schatztruhe (garden centre, 7 km) and Lünse Gartencenter (garden centre, 9 km); addresses and opening hours are below.

Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

The average daily temperature here stays above 0 °C all winter, and at least three months average 7 °C or less: our rule of thumb for the winter cold spring bulbs need. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS.

Hyacinth in Bielefeld: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 0.3 °C.

Planting	19 October – end of December
First autumn frost	18 November
Coldest nights	January, 0.3 °C
Soil back at 1 °C in spring	already in the first week of January
Daylight	10:28 on 19 October
Daylight at the winter solstice	7:44

The same dates in Bielefeld hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in Bielefeld: depth, winter cold, pests and pets

Plant hyacinths 10 cm deep, at least 7.5 cm apart (RHS).

In Bielefeld the average daily temperature stays at 10 °C or lower for about 25 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 12–15 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Flowers get smaller in the years after planting: for full spikes, replace the bulbs or add a few new ones each autumn (RHS).

If squirrels are a problem, protect the bulbs with wire mesh (RHS). Hyacinths are toxic to dogs, cats and horses: intense vomiting and diarrhoea (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Hyacinth in nearby cities

Around Bielefeld, Dortmund is 2 days earlier and Duisburg 4 days later.

City	Distance	Date	Difference
Hanover	91 km	22 October – end of December	3 days later
Dortmund	92 km	17 October – end of December	2 days earlier
Duisburg	138 km	23 October – end of December	4 days later
Düsseldorf	149 km	22 October – end of December	3 days later
Cologne	162 km	21 October – end of December	2 days later
Hamburg	196 km	20 October – end of December	1 day later

Where to buy hyacinth for planting in Bielefeld

Planting stock goes into the ground from 19 October to the end of December; buy it before that. Within 15 km of Bielefeld OpenStreetMap lists 23 garden centres, 1 farm-supply shop, 2 plant nurseries, 13 markets and 26 farm shops (collected 28 October 2026).

Die Schatztruhe — garden centre
Detmolder Straße 627, 33699 Bielefeld · Mon–Fri 09:00–18:30; Sat 10:00–16:00 · 7 km · sonnenpartner.de
ESCHEN - Tierfutter und Gartenbedarf — garden centre
Hellweg 105, 33758 Schloß Holte-Stukenbrock · Mon–Fri 09:00–13:00, 14:30–18:30; Sat 09:00–13:00; Sun, public holidays closed · 12 km · gartenbedarf-eschen.de
Baumschule Upmann — garden centre
Mönchsweg 3, 33803 Steinhagen · 11 km · baumschule-upmann.de
Lünse Gartencenter — garden centre
Elverdisser Straße 548, 32052 Herford · Mon–Sat 10:00–18:00; public holidays closed · 9 km
Gärtnerei Eckardtsheim — garden centre
Mon–Thu 08:00–12:00; Fri 08:00–12:00, 14:00–18:00; Sat 09:00–13:00; Sun, public holidays closed · 11 km · prowerk-bethel.de
Varnholt - Grün mit System — garden centre
Haverkamp 79, 33334 Gütersloh · 12 km · gruen-mit-system.de
Raiffeisen — garden centre
Sürenheider Straße 37, 33335 Gütersloh · Mon–Fri 09:00–18:00; Sat 09:00–13:00 · 13 km
Blumenhaus Hagenlüke — garden centre
Schillerweg 11, 33335 Gütersloh · 13 km · blumen-hagenlueke.de

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