When to plant hyacinths in Chuncheon: 1 October – 22 November

In Chuncheon, hyacinth: plant from 1 October to about 22 November.

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).

Hyacinth in Chuncheon: soil, season and weather

Nights then average below 0 °C in December–March; the coldest, January, averages -8 °C.

Planting	1 October – 22 November
First autumn frost	31 October
Coldest nights	January, -8 °C
Soil back at 1 °C in spring	24 February
Daylight	11:49 on 1 October
Daylight at the winter solstice	9:32

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

Hyacinth in Chuncheon: 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 Chuncheon the average daily temperature stays at 10 °C or lower for about 24 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

All the nearest cities on our list plant hyacinth later than Chuncheon; the closest date is in Seoul, 6 days later.

City	Distance	Date	Difference
Seoul	74 km	7 October – 26 November	6 days later
Gangneung	103 km	22 October – end of December	21 days later
Daejeon	172 km	13 October – 5 December	12 days later
Jeonju	234 km	18 October – 17 December	17 days later
Daegu	235 km	22 October – end of December	21 days later
Ulsan	294 km	17 October – end of December	16 days later

Where to buy hyacinth for planting in Chuncheon

Planting stock goes into the ground from 1 October to about 22 November; buy it before that. Within 15 km of Chuncheon OpenStreetMap lists 2 markets (collected 28 October 2026).

동부시장 — market
1 km
춘천시농수산물도매시장 — market
5 km

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