Greenly Garden

When to plant garlic in Sapporo: 17 September – 31 October

In Sapporo, garlic: plant from 17 September to about 31 October. For planting stock, the places nearby include 萩野農園野菜直売所果菜園 (farm shop, 13 km); addresses and opening hours are below.

Garlic is best planted early in the window: cloves planted late make smaller bulbs. Late planting works only while the soil is not frozen. 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: UVM Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Garlic in Sapporo: soil, season and weather

Garlic goes into the ground in Sapporo from 17 September to about 31 October; the window opens a month before the first autumn frost. Nights then average below 0 °C in November–April; the coldest, January, averages -11.9 °C.

Planting17 September – 31 October
First autumn frost17 October
Coldest nightsJanuary, -11.9 °C
Soil back at 5 °C in spring5 May
Harvest (card)about 8 months after planting: May
Daylight12:27 on 17 September
Daylight at the winter solstice9:00

The same dates in Sapporo hold for Tulip, Daffodil, Crocus and Hyacinth.

Garlic in Sapporo: care after planting

Planted on 17 September: in the first weeks water every 7 days.

Feeding, by the card’s schedule from that day:

  • 17 September — feed: nitrogen
  • 15 October — feed: nitrogen

Pests and diseases of garlic to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Garlic in nearby cities

Around Sapporo, Khabarovsk is 1 day earlier and Niigata 64 days later.

CityDistanceDateDifference
Sendai534 km24 October – end of December37 days later
Niigata604 km20 November – end of December64 days later
Vladivostok768 km6 October – 8 November19 days later
Khabarovsk774 km16 September – 15 October1 day earlier
Tokyo832 km14 November – end of December58 days later
Nagoya956 km10 November – end of December54 days later

Where to buy garlic for planting in Sapporo

Planting stock goes into the ground from 17 September to about 31 October; buy it before that. Within 15 km of Sapporo OpenStreetMap lists 2 garden centres, 1 farm-supply shop, 2 markets and 3 farm shops (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Sapporo?

In Sapporo, garlic: plant from 17 September to about 31 October. Garlic is best planted early in the window: cloves planted late make smaller bulbs. Late planting works only while the soil is not frozen. Mulch after planting.

When is the last spring frost in Sapporo?

Last spring frost around 9 May, first autumn frost around 17 October.

Other crops in Sapporo, with their dates