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When to plant crocuses in Zielona Góra: 14 October – end of December

In Zielona Góra, crocus: plant from 14 October to the end of December. For planting stock, the places nearby include Flora (garden centre, 1 km) and Sunplus (garden centre, 2 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 Zielona Góra: soil, season and weather

Nights then average below 0 °C in January, February; the coldest, January, averages -1.7 °C.

Planting14 October – end of December
First autumn frost13 November
Coldest nightsJanuary, -1.7 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:48 on 14 October
Daylight at the winter solstice7:45

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

Crocus in Zielona Góra: 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 Zielona Góra 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 Zielona Góra, Liberec is 12 days earlier and Potsdam 8 days later.

CityDistanceDateDifference
Poznań110 km17 October – end of December3 days later
Liberec134 km2 October – 7 December12 days earlier
Wrocław140 km12 October – end of December2 days earlier
Berlin157 km20 October – end of December6 days later
Dresden157 km19 October – end of December5 days later
Potsdam175 km22 October – end of December8 days later

Where to buy crocus for planting in Zielona Góra

Planting stock goes into the ground from 14 October to the end of December; buy it before that. Within 15 km of Zielona Góra OpenStreetMap lists 9 garden centres, 3 plant nurseries and 1 farm shop (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Zielona Góra?

In Zielona Góra, crocus: plant from 14 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 Zielona Góra?

Last spring frost around 16 April, first autumn frost around 13 November.

Other crops in Zielona Góra, with their dates