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When to plant crocuses in Luxembourg: 19 October – end of December

In Luxembourg, crocus: plant from 19 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 Luxembourg: soil, season and weather

Nights then average below 0 °C in January; the coldest, January, averages -0.2 °C.

Planting19 October – end of December
First autumn frost18 November
Coldest nightsJanuary, -0.2 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:36 on 19 October
Daylight at the winter solstice8:08

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

Crocus in Luxembourg: 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 Luxembourg the average daily temperature stays at 10 °C or lower for about 26 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 Luxembourg, Charleroi is 3 days earlier and Cologne 2 days later.

CityDistanceDateDifference
Metz55 km18 October – end of December1 day earlier
Liège120 km20 October – end of December1 day later
Charleroi150 km16 October – end of December3 days earlier
Reims157 km18 October – end of December1 day earlier
Hasselt157 km19 October – end of Decembersame day
Cologne159 km21 October – end of December2 days later

Where to buy crocus for planting in Luxembourg

Planting stock goes into the ground from 19 October to the end of December; buy it before that. Within 15 km of Luxembourg OpenStreetMap lists 9 garden centres, 3 plant nurseries, 7 markets and 13 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Luxembourg?

In Luxembourg, crocus: plant from 19 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 Luxembourg?

Last spring frost around 15 April, first autumn frost around 18 November.

Other crops in Luxembourg, with their dates