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When to plant garlic in Quebec City: 28 September – 4 November

In Quebec City, garlic: plant from 28 September to about 4 November. For planting stock, the places nearby include Centre Jardin de l'aeroport (garden centre, 13 km) and Floralies Jouvences (garden centre, 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 Quebec City: soil, season and weather

Garlic goes into the ground in Quebec City from 28 September to about 4 November; the window opens a month before the first autumn frost. Nights then average below 0 °C in November–April; the coldest, January, averages -13.9 °C.

Planting28 September – 4 November
First autumn frost28 October
Coldest nightsJanuary, -13.9 °C
Soil back at 5 °C in spring28 April
Harvest (card)about 8 months after planting: June
Daylight11:54 on 28 September
Daylight at the winter solstice8:32

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

Garlic in Quebec City: care after planting

Planted on 28 September: in the first weeks water every 7 days.

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

  • 28 September — feed: nitrogen
  • 26 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 Quebec City, Saguenay is 6 days earlier and Bangor 6 days later.

CityDistanceDateDifference
Trois-Rivières114 km29 September – 8 November1 day later
Sherbrooke165 km27 September – 8 November1 day earlier
Saguenay180 km22 September – 30 October6 days earlier
Montreal233 km2 October – 13 November4 days later
Bangor288 km4 October – 19 November6 days later
Augusta299 km4 October – 20 November6 days later

Where to buy garlic for planting in Quebec City

Planting stock goes into the ground from 28 September to about 4 November; buy it before that. Within 15 km of Quebec City OpenStreetMap lists 6 garden centres, 1 farm-supply shop and 3 markets (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Quebec City?

In Quebec City, garlic: plant from 28 September to about 4 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 Quebec City?

Last spring frost around 5 May, first autumn frost around 28 October.

Other crops in Quebec City, with their dates