Greenly Garden
Get the app
EN

When to plant crocuses in Bologna: 30 October – end of December

In Bologna, crocus: plant from 30 October to the end of December. For planting stock, the places nearby include Senape (garden centre, 1 km) and Vivaio La Bastia (garden centre, 5 km); addresses and opening hours are below.

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 Bologna: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 0.4 °C.

Planting30 October – end of December
First autumn frost29 November
Coldest nightsJanuary, 0.4 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:19 on 30 October
Daylight at the winter solstice8:50

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

Crocus in Bologna: 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 Bologna the average daily temperature stays at 10 °C or lower for about 18 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 Bologna, Pisa is 11 days earlier and San Marino 13 days later.

CityDistanceDateDifference
Modena37 km31 October – end of December1 day later
Florence80 kmby 28 October2 days earlier
San Marino108 kmby 12 November13 days later
Verona109 km28 October – end of December2 days earlier
Padua111 km29 October – end of December1 day earlier
Pisa115 km19 October – end of December11 days earlier

Where to buy crocus for planting in Bologna

Planting stock goes into the ground from 30 October to the end of December; buy it before that. Within 15 km of Bologna OpenStreetMap lists 9 garden centres, 3 farm-supply shops, 4 plant nurseries, 18 markets and 15 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Bologna?

In Bologna, crocus: plant from 30 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 Bologna?

Last spring frost around 10 March, first autumn frost around 29 November.

Other crops in Bologna, with their dates