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When to plant crocuses in Fukuoka: by 21 November

In Fukuoka, crocus: plant by 21 November. The winter here is too mild for our late-planting rule, so we give no later limit.

Crocus in Fukuoka: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 2.6 °C.

Plantingby 21 November
First autumn frost21 December
Coldest nightsJanuary, 2.6 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:18 on 21 November
Daylight at the winter solstice9:55

The same dates in Fukuoka hold for Garlic, Tulip, Daffodil and Hyacinth.

Crocus in Fukuoka: depth, winter cold, pests and pets

Plant Dutch crocuses (Crocus vernus) about 12 cm deep and 9 cm apart; smaller species go 7–10 cm deep (RHS).

In Fukuoka the average daily temperature stays at 10 °C or lower for about 14 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. That is less than the bulbs need, and without more cold they may not flower properly. The cold can also be given in a refrigerator at about 2–7 °C, as Wisconsin Horticulture Extension does for crocuses forced in pots.

Crocuses multiply on their own (they naturalise); in a lawn, hold off mowing until their leaves die back (RHS).

Birds, squirrels and rodents damage crocuses; planting under metal mesh may reduce losses (RHS). Spring crocus gives dogs and cats vomiting and diarrhoea; do not confuse it with autumn crocus (Colchicum), which is very toxic (Pet Poison Helpline).

Sources: RHS, Wisconsin Horticulture Extension, Pet Poison Helpline.

Crocus in nearby cities

Around Fukuoka, Ulsan is 35 days earlier and Kagoshima 5 days later.

CityDistanceDateDifference
Kumamoto92 kmby 3 November18 days earlier
Hiroshima209 km26 October – end of December26 days earlier
Busan215 km23 October – end of December29 days earlier
Kagoshima222 kmby 26 November5 days later
Ulsan239 km17 October – end of December35 days earlier
Daegu302 km22 October – end of December30 days earlier

Where to buy crocus for planting in Fukuoka

Planting stock goes into the ground by 21 November; buy it before that. Within 15 km of Fukuoka OpenStreetMap lists 10 garden centres, 1 plant nursery, 3 markets and 3 farm shops (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Fukuoka?

In Fukuoka, crocus: plant by 21 November. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in Fukuoka?

Last spring frost around 25 February, first autumn frost around 21 December.

Other crops in Fukuoka, with their dates