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When to plant hyacinths in Busan: 23 October – end of December

In Busan, hyacinth: plant from 23 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.

Hyacinth in Busan: soil, season and weather

Nights then average below 0 °C in December–February; the coldest, January, averages -2.8 °C.

Planting23 October – end of December
First autumn frost22 November
Coldest nightsJanuary, -2.8 °C
Soil back at 1 °C in springalready in the first week of January
Daylight11:04 on 23 October
Daylight at the winter solstice9:47

The same dates in Busan hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in Busan: depth, winter cold, pests and pets

Plant hyacinths 10 cm deep, at least 7.5 cm apart (RHS). In the ground hyacinths are fully hardy, but in containers they can be frost tender in cold winters (RHS); here winter nights average below 0 °C, so wrap the pots or move them to a sheltered spot.

In Busan the average daily temperature stays at 10 °C or lower for about 18 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 12–15 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Flowers get smaller in the years after planting: for full spikes, replace the bulbs or add a few new ones each autumn (RHS).

If squirrels are a problem, protect the bulbs with wire mesh (RHS). Hyacinths are toxic to dogs, cats and horses: intense vomiting and diarrhoea (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Hyacinth in nearby cities

Around Busan, Daejeon is 10 days earlier and Fukuoka 29 days later.

CityDistanceDateDifference
Ulsan47 km17 October – end of December6 days earlier
Daegu88 km22 October – end of December1 day earlier
Jeonju188 km18 October – 17 December5 days earlier
Daejeon200 km13 October – 5 December10 days earlier
Gwangju202 km24 October – end of December1 day later
Fukuoka215 kmby 21 November29 days later

Where to buy hyacinth for planting in Busan

Planting stock goes into the ground from 23 October to the end of December; buy it before that. Within 15 km of Busan OpenStreetMap lists 27 markets (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Busan?

In Busan, hyacinth: plant from 23 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 Busan?

Last spring frost around 19 March, first autumn frost around 22 November.

Other crops in Busan, with their dates