Greenly Garden

When to plant crocuses in Le Havre: by 12 November

In Le Havre, crocus: plant by 12 November. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include Au Jardin Fleuri (garden centre, 4 km) and Le Paradis Desjardins (garden centre, 7 km); addresses and opening hours are below.

Crocus in Le Havre: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 3.9 °C.

Plantingby 12 November
First autumn frost12 December
Coldest nightsJanuary, 3.9 °C
Soil back at 1 °C in springalready in the first week of January
Daylight9:17 on 12 November
Daylight at the winter solstice8:09

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

Crocus in Le Havre: 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 Le Havre the average daily temperature stays at 10 °C or lower for about 21 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

All the nearest cities on our list plant crocus earlier than Le Havre; the closest date is in Caen, 7 days earlier.

CityDistanceDateDifference
Caen48 kmby 5 November7 days earlier
Brighton150 kmby 1 November11 days earlier
Le Mans166 km25 October – end of December18 days earlier
Paris177 km21 October – end of December22 days earlier
Rennes202 kmby 29 October14 days earlier
Orléans220 km26 October – end of December17 days earlier

Where to buy crocus for planting in Le Havre

Planting stock goes into the ground by 12 November; buy it before that. Within 15 km of Le Havre OpenStreetMap lists 4 garden centres, 1 farm-supply shop, 1 plant nursery, 9 markets and 7 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Le Havre?

In Le Havre, crocus: plant by 12 November. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in Le Havre?

Last spring frost around 14 February, first autumn frost around 12 December.

Other crops in Le Havre, with their dates