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

In Daejeon, tulip: plant from 13 October to about 5 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 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: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Tulip in Daejeon: soil, season and weather

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 7 °C in spring20 March
Daylight11:23 on 13 October
Daylight at the winter solstice9:41

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

Tulip in Daejeon: depth, winter cold, pests and pets

Plant tulips at a depth of two to three times the bulb’s height, at least twice the bulb’s width apart, pointed end up (RHS). Where winters are very cold, tulips benefit from deeper planting to protect them from frost penetrating the soil (RHS); here the average daily temperature drops below 0 °C in winter.

In Daejeon the average daily temperature stays at 10 °C or lower for about 21 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.

Border tulips often fail to flower in their second year if left in the ground, so many gardeners grow them for one spring and plant fresh bulbs each autumn; Darwin hybrid and Kaufmanniana tulips reflower more reliably (RHS). Soils that stay wet in summer make reflowering difficult (RHS): in Daejeon the three warmest months bring about 629 mm of rain together.

Grey squirrels often dig up tulip bulbs: lay chicken wire over the bed until the leaves appear, or plant daffodils among them, which squirrels avoid (RHS). Tulips are toxic to dogs, cats and horses, the bulb most of all (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Tulip 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 tulip 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 tulips in Daejeon?

In Daejeon, tulip: plant from 13 October to about 5 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 Daejeon?

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

Other crops in Daejeon, with their dates