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When to plant tulips in Hiroshima: 26 October – end of December

In Hiroshima, tulip: plant from 26 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.

Tulip in Hiroshima: soil, season and weather

Nights then average below 0 °C in January, February; the coldest, January, averages -1.8 °C.

Planting26 October – end of December
First autumn frost25 November
Coldest nightsJanuary, -1.8 °C
Soil back at 7 °C in spring13 March
Daylight10:59 on 26 October
Daylight at the winter solstice9:51

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

Tulip in Hiroshima: 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).

In Hiroshima the average daily temperature stays at 10 °C or lower for about 20 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 Hiroshima the three warmest months bring about 725 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 Hiroshima, Ulsan is 9 days earlier and Fukuoka 26 days later.

CityDistanceDateDifference
Okayama138 km15 November – end of December20 days later
Fukuoka209 kmby 21 November26 days later
Kumamoto239 kmby 3 November8 days later
Osaka281 km17 November – end of December22 days later
Kyoto311 km7 November – end of December12 days later
Ulsan313 km17 October – end of December9 days earlier

Where to buy tulip for planting in Hiroshima

Planting stock goes into the ground from 26 October to the end of December; buy it before that. Within 15 km of Hiroshima OpenStreetMap lists 2 garden centres, 2 farm-supply shops, 3 markets and 2 farm shops (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant tulips in Hiroshima?

In Hiroshima, tulip: plant from 26 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 Hiroshima?

Last spring frost around 9 April, first autumn frost around 25 November.

Other crops in Hiroshima, with their dates