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When to plant tulips in Duisburg: 23 October – end of December

In Duisburg, tulip: plant from 23 October to the end of December.

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.

Tulip in Duisburg: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 1.3 °C.

Planting23 October – end of December
First autumn frost22 November
Coldest nightsJanuary, 1.3 °C
Soil back at 7 °C in spring21 February
Daylight10:15 on 23 October
Daylight at the winter solstice7:50

The same dates in Duisburg hold for Garlic, Daffodil, Crocus and Hyacinth.

Tulip in Duisburg: depth, winter cold, pests and pets

Plant tulips at a depth of two to three times the bulb’s height, at least twice the bulb’s width apart, pointed end up (RHS).

In Duisburg the average daily temperature stays at 10 °C or lower for about 24 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 15–17 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Border tulips often fail to flower in their second year if left in the ground, so many gardeners grow them for one spring and plant fresh bulbs each autumn; Darwin hybrid and Kaufmanniana tulips reflower more reliably (RHS). Soils that stay wet in summer make reflowering difficult (RHS): in Duisburg the three warmest months bring about 206 mm of rain together.

Grey squirrels often dig up tulip bulbs: lay chicken wire over the bed until the leaves appear, or plant daffodils among them, which squirrels avoid (RHS). Tulips are toxic to dogs, cats and horses, the bulb most of all (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Tulip in nearby cities

All the nearest cities on our list plant tulip earlier than Duisburg; the closest date is in Düsseldorf, 1 day earlier.

CityDistanceDateDifference
Düsseldorf22 km22 October – end of December1 day earlier
Dortmund50 km17 October – end of December6 days earlier
Cologne56 km21 October – end of December2 days earlier
Hasselt114 km19 October – end of December4 days earlier
Liège122 km20 October – end of December3 days earlier
Bielefeld138 km19 October – end of December4 days earlier

Where to buy tulip for planting in Duisburg

Planting stock goes into the ground from 23 October to the end of December; buy it before that. Within 15 km of Duisburg OpenStreetMap lists 44 garden centres, 3 farm-supply shops, 5 plant nurseries, 35 markets and 27 farm shops (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant tulips in Duisburg?

In Duisburg, tulip: plant from 23 October to the end of December. 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.

When is the last spring frost in Duisburg?

Last spring frost around 5 April, first autumn frost around 22 November.

Other crops in Duisburg, with their dates