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When to plant garlic in Daejeon: 13 October – 5 December

In Daejeon, garlic: plant from 13 October to about 5 December.

Garlic is best planted early in the window: cloves planted late make smaller bulbs. Late planting works only while the soil is not frozen. Mulch after planting.

The date is about two weeks before the average daily temperature here falls below 0 °C (ten years of weather): an estimate, not the day the ground freezes, and a cold spell can freeze it earlier. Sources: UVM Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Garlic in Daejeon: soil, season and weather

Garlic goes into the ground in Daejeon from 13 October to about 5 December; the window opens a month before the first autumn frost. Nights then average below 0 °C in December–February; the coldest, January, averages -5.1 °C.

Planting13 October – 5 December
First autumn frost12 November
Coldest nightsJanuary, -5.1 °C
Soil back at 5 °C in spring7 March
Harvest (card)about 8 months after planting: June
Daylight11:23 on 13 October
Daylight at the winter solstice9:41

The same dates in Daejeon hold for Tulip, Daffodil, Crocus and Hyacinth.

Garlic in Daejeon: care after planting

Planted on 13 October: in the first weeks water every 7 days.

Feeding, by the card’s schedule from that day:

  • 13 October — feed: nitrogen
  • 10 November — feed: nitrogen

Pests and diseases of garlic to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Garlic in nearby cities

Around Daejeon, Chuncheon is 12 days earlier and Gwangju 11 days later.

CityDistanceDateDifference
Jeonju63 km18 October – 17 December5 days later
Daegu121 km22 October – end of December9 days later
Seoul139 km7 October – 26 November6 days earlier
Gwangju140 km24 October – end of December11 days later
Chuncheon172 km1 October – 22 November12 days earlier
Ulsan195 km17 October – end of December4 days later

Where to buy garlic for planting in Daejeon

Planting stock goes into the ground from 13 October to about 5 December; buy it before that. Within 15 km of Daejeon OpenStreetMap lists 24 markets and 1 farm shop (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Daejeon?

In Daejeon, garlic: plant from 13 October to about 5 December. Garlic is best planted early in the window: cloves planted late make smaller bulbs. Late planting works only while the soil is not frozen. Mulch after planting.

When is the last spring frost in Daejeon?

Last spring frost around 1 April, first autumn frost around 12 November.

Other crops in Daejeon, with their dates