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When to plant crocuses in Liège: 20 October – end of December

In Liège, crocus: plant from 20 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.

Crocus in Liège: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 1 °C.

Planting20 October – end of December
First autumn frost19 November
Coldest nightsJanuary, 1 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:29 on 20 October
Daylight at the winter solstice7:58

The same dates in Liège hold for Garlic, Tulip, Daffodil and Hyacinth.

Crocus in Liège: depth, winter cold, pests and pets

Plant Dutch crocuses (Crocus vernus) about 12 cm deep and 9 cm apart; smaller species go 7–10 cm deep (RHS).

In Liège 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.

Crocuses multiply on their own (they naturalise); in a lawn, hold off mowing until their leaves die back (RHS).

Birds, squirrels and rodents damage crocuses; planting under metal mesh may reduce losses (RHS). Spring crocus gives dogs and cats vomiting and diarrhoea; do not confuse it with autumn crocus (Colchicum), which is very toxic (Pet Poison Helpline).

Sources: RHS, Wisconsin Horticulture Extension, Pet Poison Helpline.

Crocus in nearby cities

Around Liège, Charleroi is 4 days earlier and Brussels 3 days later.

CityDistanceDateDifference
Hasselt37 km19 October – end of December1 day earlier
Charleroi84 km16 October – end of December4 days earlier
Brussels89 km23 October – end of December3 days later
Cologne104 km21 October – end of December1 day later
Düsseldorf108 km22 October – end of December2 days later
Luxembourg120 km19 October – end of December1 day earlier

Where to buy crocus for planting in Liège

Planting stock goes into the ground from 20 October to the end of December; buy it before that. Within 15 km of Liège OpenStreetMap lists 11 garden centres, 3 plant nurseries, 7 markets and 12 farm shops (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Liège?

In Liège, crocus: plant from 20 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 Liège?

Last spring frost around 16 April, first autumn frost around 19 November.

Other crops in Liège, with their dates