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When to plant crocuses in Daegu: 22 October – end of December

In Daegu, crocus: plant from 22 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 Daegu: soil, season and weather

Nights then average below 0 °C in December–February; the coldest, January, averages -3.1 °C.

Planting22 October – end of December
First autumn frost21 November
Coldest nightsJanuary, -3.1 °C
Soil back at 1 °C in springalready in the first week of January
Daylight11:04 on 22 October
Daylight at the winter solstice9:43

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

Crocus in Daegu: 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 Daegu the average daily temperature stays at 10 °C or lower for about 19 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 Daegu, Daejeon is 9 days earlier and Gwangju 2 days later.

CityDistanceDateDifference
Ulsan74 km17 October – end of December5 days earlier
Busan88 km23 October – end of December1 day later
Daejeon121 km13 October – 5 December9 days earlier
Jeonju131 km18 October – 17 December4 days earlier
Gwangju176 km24 October – end of December2 days later
Gangneung211 km22 October – end of Decembersame day

Where to buy crocus for planting in Daegu

Planting stock goes into the ground from 22 October to the end of December; buy it before that. Within 15 km of Daegu OpenStreetMap lists 1 garden centre and 32 markets (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Daegu?

In Daegu, crocus: plant from 22 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 Daegu?

Last spring frost around 19 March, first autumn frost around 21 November.

Other crops in Daegu, with their dates