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When to plant garlic in Davenport: 30 September – 30 November

In Davenport, garlic: plant from 30 September to about 30 November. For planting stock, the places nearby include Wallaces Garden Center (garden centre, 3 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 Davenport: soil, season and weather

Garlic goes into the ground in Davenport from 30 September to about 30 November; the window opens a month before the first autumn frost. Nights then average below 0 °C in December–February; the coldest, January, averages -8.3 °C.

Planting30 September – 30 November
First autumn frost30 October
Coldest nightsJanuary, -8.3 °C
Soil back at 5 °C in spring11 March
Harvest (card)about 8 months after planting: June
Daylight11:50 on 30 September
Daylight at the winter solstice9:10

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

Garlic in Davenport: care after planting

Planted on 30 September: in the first weeks water every 7 days.

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

  • 30 September — feed: nitrogen
  • 28 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 Davenport, Cedar Rapids is 5 days earlier and Chicago 7 days later.

CityDistanceDateDifference
Cedar Rapids100 km25 September – 25 November5 days earlier
Peoria129 km1 October – 9 December1 day later
Rockford149 km28 September – 25 November2 days earlier
Madison195 km27 September – 20 November3 days earlier
Springfield212 km2 October – 22 December2 days later
Chicago249 km7 October – 3 December7 days later

Where to buy garlic for planting in Davenport

Planting stock goes into the ground from 30 September to about 30 November; buy it before that. Within 15 km of Davenport OpenStreetMap lists 2 garden centres and 1 market (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Davenport?

In Davenport, garlic: plant from 30 September 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 Davenport?

Last spring frost around 20 April, first autumn frost around 30 October.

Other crops in Davenport, with their dates