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When to plant garlic in Jeju City: 19 November – end of December

In Jeju City, garlic: plant from 19 November to the end of 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 average daily temperature here stays above 0 °C all winter, and at least two months average 10 °C or less: the cold garlic needs, one to two months at 0–10 °C (RHS). The two-month threshold is our rule of thumb. Sources: UVM Extension, UNH Extension, RHS.

Garlic in Jeju City: soil, season and weather

Garlic goes into the ground in Jeju City from 19 November to the end of December; the window opens a month before the first autumn frost. No month averages below 0 °C at night; the coldest nights, in January, average 3.2 °C.

Planting19 November – end of December
First autumn frost19 December
Coldest nightsJanuary, 3.2 °C
Soil back at 5 °C in springalready in the first week of January
Harvest (card)about 8 months after planting: July
Daylight10:21 on 19 November
Daylight at the winter solstice9:56

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

Garlic in Jeju City: care after planting

Planted on 19 November: in the first weeks water every 7 days.

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

  • 19 November — feed: nitrogen
  • 17 December — 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

All the nearest cities on our list plant garlic earlier than Jeju City; the closest date is in Gwangju, 26 days earlier.

CityDistanceDateDifference
Gwangju187 km24 October – end of December26 days earlier
Jeonju263 km18 October – 17 December32 days earlier
Busan299 km23 October – end of December27 days earlier
Daegu324 km22 October – end of December28 days earlier
Daejeon326 km13 October – 5 December37 days earlier
Ulsan342 km17 October – end of December33 days earlier

Where to buy garlic for planting in Jeju City

Planting stock goes into the ground from 19 November to the end of December; buy it before that. Within 15 km of Jeju City OpenStreetMap lists 1 garden centre, 7 markets and 1 farm shop (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Jeju City?

In Jeju City, garlic: plant from 19 November to the end of 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 Jeju City?

Last spring frost around 18 February, first autumn frost around 19 December.

Other crops in Jeju City, with their dates