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When to plant garlic in Billings: 14 September – 23 November

In Billings, garlic: plant from 14 September to about 23 November.

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 Billings: soil, season and weather

Garlic goes into the ground in Billings from 14 September to about 23 November; the window opens a month before the first autumn frost. Nights then average below 0 °C in November–March; the coldest, February, averages -9.8 °C.

Planting14 September – 23 November
First autumn frost14 October
Coldest nightsFebruary, -9.8 °C
Soil back at 5 °C in spring20 March
Harvest (card)about 8 months after planting: May
Daylight12:39 on 14 September
Daylight at the winter solstice8:40

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

Garlic in Billings: care after planting

Planted on 14 September: in the first weeks water every 7 days.

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

  • 14 September — feed: nitrogen
  • 12 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

1 of the nearest cities share Billings's date.

CityDistanceDateDifference
Helena287 km3 September – 5 November11 days earlier
Idaho Falls377 km14 September – 14 Novembersame day
Missoula441 km6 September – 12 November8 days earlier
Rapid City457 km12 September – 28 November2 days earlier
Regina594 km6 September – 22 October8 days earlier
Cheyenne595 km13 September – 4 December1 day earlier

Where to buy garlic for planting in Billings

Planting stock goes into the ground from 14 September to about 23 November; buy it before that. Within 15 km of Billings OpenStreetMap lists 7 garden centres, 11 farm-supply shops, 3 plant nurseries and 4 markets (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Billings?

In Billings, garlic: plant from 14 September to about 23 November. 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 Billings?

Last spring frost around 25 April, first autumn frost around 14 October.

Other crops in Billings, with their dates