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When to plant garlic in Japan: 17 September – end of December

Garlic in Japan: plant from 17 September to the end of December; the window opens earliest in Sapporo and closes latest in Tokyo (14 cities).

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).

Planting window by climate zone

ZoneCitiesWindow
270 frost-free days or moreTokyo, Osaka, Fukuoka, Niigata, Hamamatsu, Okayama, Kagoshima14 November – end of December
210–269 frost-free daysNagoya, Kyoto, Hiroshima, Sendai, Kumamoto24 October – end of December
150–209 frost-free daysSapporo17 September – 31 October
Frost without a regular seasonKitakyushu1 October – end of December
No frost in ten yearsNaha—

Garlic: the window in each city

CityWindowZone
Sapporo17 September – 31 October150–209 frost-free days
Kitakyushu1 October – end of DecemberFrost without a regular season
NahaThere is no autumn frost here and the winter is too warm for our late-planting rule, so we give no planting window; the calendar’s default autumn date is 1 October.No frost in ten years
Sendai24 October – end of December210–269 frost-free days
Hiroshima26 October – end of December210–269 frost-free days
Kumamoto3 November – end of December210–269 frost-free days
Kyoto7 November – end of December210–269 frost-free days
Nagoya10 November – end of December210–269 frost-free days
Tokyo14 November – end of December270 frost-free days or more
Okayama15 November – end of December270 frost-free days or more
Osaka17 November – end of December270 frost-free days or more
Hamamatsu18 November – end of December270 frost-free days or more
Niigata20 November – end of December270 frost-free days or more
Fukuoka21 November – end of December270 frost-free days or more
Kagoshima26 November – end of December270 frost-free days or more