When to plant hyacinths in Dortmund: 17 October – end of December

In Dortmund, hyacinth: plant from 17 October to the end of December. For planting stock, the places nearby include Gartencenter Augsburg (garden centre, 8 km) and Pflanzenland Dahlke (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 Dortmund: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 0.7 °C.

Planting	17 October – end of December
First autumn frost	16 November
Coldest nights	January, 0.7 °C
Soil back at 1 °C in spring	already in the first week of January
Daylight	10:38 on 17 October
Daylight at the winter solstice	7:50

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

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

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

In Dortmund 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

All the nearest cities on our list plant hyacinth later than Dortmund; the closest date is in Bielefeld, 2 days later.

City	Distance	Date	Difference
Duisburg	50 km	23 October – end of December	6 days later
Düsseldorf	57 km	22 October – end of December	5 days later
Cologne	73 km	21 October – end of December	4 days later
Bielefeld	92 km	19 October – end of December	2 days later
Hasselt	162 km	19 October – end of December	2 days later
Liège	165 km	20 October – end of December	3 days later

Where to buy hyacinth for planting in Dortmund

Planting stock goes into the ground from 17 October to the end of December; buy it before that. Within 15 km of Dortmund OpenStreetMap lists 24 garden centres, 2 farm-supply shops, 3 plant nurseries, 21 markets and 35 farm shops (collected 28 October 2026).

Hof Ligges — farm shop · sells: eggs, pumpkins, potatoes
Afferder Straße 1, 59174 Kamen · 12 km · hof-ligges.de
Bauernstube Hof Niermann — farm shop
Recklinghäuser Straße 191, 45731 Waltrop · 14 km · hofniermann.de
Babywald — plant nursery
11 km · schwerte.de
Lichtendorfer Baumschulen — plant nursery
10 km
Gartencenter Augsburg — garden centre
Hörder Straße 119, 58239 Schwerte · Mon–Fri 09:00–18:30; Sat 09:00–18:00; Sun 11:00–16:00 · 8 km · gartencenter-augsburg.de
Pflanzenland Dahlke — garden centre
Brechtener Straße 144, 44536 Lünen · 24/7 closed · 9 km · pflanzenland-dahlke.de
Dehner Gartencenter — garden centre
Liegnitzer Straße 7, 58454 Witten · Mon–Sat 09:00–20:00; Sun, public holidays closed · 10 km · dehner.de
Gartencenter Pötschke GmbH & Co. KG — garden centre
Overberger Weg 11a, 58239 Schwerte · Mon–Fri 09:00–19:00; Sat 09:00–18:00; Sun 10:30–15:30 · 10 km · gartencenter-poetschke.de

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