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

In Bergamo, 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 Bergamo: soil, season and weather

Nights then average below 0 °C in December, January; the coldest, January, averages -1.5 °C.

Planting19 October – end of December
First autumn frost18 November
Coldest nightsJanuary, -1.5 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:48 on 19 October
Daylight at the winter solstice8:41

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

Crocus in Bergamo: 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 Bergamo 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 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 Bergamo, Locarno is 57 days earlier and Lugano 17 days later.

CityDistanceDateDifference
Milan46 km31 October – end of December12 days later
Como47 km24 October – end of December5 days later
Lugano65 km5 November – end of December17 days later
Piacenza72 km1 November – end of December13 days later
Bellinzona74 km16 October – end of December3 days earlier
Locarno85 km23 August – 27 October57 days earlier

Where to buy crocus for planting in Bergamo

Planting stock goes into the ground from 19 October to the end of December; buy it before that. Within 15 km of Bergamo OpenStreetMap lists 10 garden centres, 1 farm-supply shop, 6 plant nurseries, 7 markets and 8 farm shops (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Bergamo?

In Bergamo, 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 Bergamo?

Last spring frost around 6 April, first autumn frost around 18 November.

Other crops in Bergamo, with their dates