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When to plant garlic in Ann Arbor: 6 October – 30 November

In Ann Arbor, garlic: plant from 6 October to about 30 November. For planting stock, the places nearby include The Farm at Trinity Health - Ann Arbor (farm shop, 9 km) and Growing Hope Center (farm shop, 11 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 Ann Arbor: soil, season and weather

Garlic goes into the ground in Ann Arbor from 6 October to about 30 November; the window opens a month before the first autumn frost. Nights then average below 0 °C in December–March; the coldest, January, averages -6.8 °C.

Planting6 October – 30 November
First autumn frost5 November
Coldest nightsJanuary, -6.8 °C
Soil back at 5 °C in spring14 March
Harvest (card)about 8 months after planting: June
Daylight11:33 on 6 October
Daylight at the winter solstice9:05

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

Garlic in Ann Arbor: care after planting

Planted on 6 October: in the first weeks water every 7 days.

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

  • 6 October — feed: nitrogen
  • 3 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 Ann Arbor, Lansing is 3 days earlier and Detroit 2 days later.

CityDistanceDateDifference
Detroit58 km8 October – 7 December2 days later
Windsor60 km8 October – 6 December2 days later
Toledo (United States)72 km8 October – 11 December2 days later
Lansing82 km3 October – 29 November3 days earlier
Grand Rapids174 km4 October – 29 November2 days earlier
Fort Wayne176 km3 October – 10 December3 days earlier

Where to buy garlic for planting in Ann Arbor

Planting stock goes into the ground from 6 October to about 30 November; buy it before that. Within 15 km of Ann Arbor OpenStreetMap lists 4 garden centres, 1 farm-supply shop, 2 plant nurseries, 10 markets and 5 farm shops (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Ann Arbor?

In Ann Arbor, garlic: plant from 6 October to about 30 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 Ann Arbor?

Last spring frost around 28 April, first autumn frost around 5 November.

Other crops in Ann Arbor, with their dates