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When to plant hyacinths in Strasbourg: 21 October – end of December

In Strasbourg, hyacinth: plant from 21 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.

Hyacinth in Strasbourg: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 0.1 °C.

Planting21 October – end of December
First autumn frost20 November
Coldest nightsJanuary, 0.1 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:33 on 21 October
Daylight at the winter solstice8:17

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

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

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

In Strasbourg the average daily temperature stays at 10 °C or lower for about 23 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 earlier than Strasbourg; the closest date is in Karlsruhe, 1 day earlier.

CityDistanceDateDifference
Karlsruhe68 km20 October – end of December1 day earlier
Mulhouse96 km18 October – end of December3 days earlier
Stuttgart108 km9 October – end of December12 days earlier
Metz130 km18 October – end of December3 days earlier
Zurich145 km17 October – end of December4 days earlier
Luxembourg165 km19 October – end of December2 days earlier

Where to buy hyacinth for planting in Strasbourg

Planting stock goes into the ground from 21 October to the end of December; buy it before that. Within 15 km of Strasbourg OpenStreetMap lists 15 garden centres, 13 markets and 31 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Strasbourg?

In Strasbourg, hyacinth: plant from 21 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 Strasbourg?

Last spring frost around 6 April, first autumn frost around 20 November.

Other crops in Strasbourg, with their dates