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When to plant garlic in Hamilton: 8 October – 10 December

In Hamilton, garlic: plant from 8 October to about 10 December. For planting stock, the places nearby include Wier's Lane Lavender & Apiary (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 Hamilton: soil, season and weather

Garlic goes into the ground in Hamilton from 8 October to about 10 December; the window opens a month before the first autumn frost. Nights then average below 0 °C in December–March; the coldest, January, averages -5.3 °C.

Planting8 October – 10 December
First autumn frost7 November
Coldest nightsJanuary, -5.3 °C
Soil back at 5 °C in spring19 March
Harvest (card)about 8 months after planting: June
Daylight11:26 on 8 October
Daylight at the winter solstice8:58

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

Garlic in Hamilton: care after planting

Planted on 8 October: in the first weeks water every 7 days.

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

  • 8 October — feed: nitrogen
  • 5 November — 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 Hamilton, Kitchener is 12 days earlier and Erie 12 days later.

CityDistanceDateDifference
Kitchener57 km26 September – 21 November12 days earlier
Toronto58 km30 September – 25 November8 days earlier
Buffalo88 km11 October – 6 December3 days later
London (Canada)116 km8 October – 28 Novembersame day
Erie126 km20 October – 22 December12 days later
Rochester181 km13 October – 14 December5 days later

Where to buy garlic for planting in Hamilton

Planting stock goes into the ground from 8 October to about 10 December; buy it before that. Within 15 km of Hamilton OpenStreetMap lists 10 garden centres, 5 markets and 4 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Hamilton?

In Hamilton, garlic: plant from 8 October to about 10 December. 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 Hamilton?

Last spring frost around 19 April, first autumn frost around 7 November.

Other crops in Hamilton, with their dates