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When to plant tulips in Rockford: 28 September – 25 November

In Rockford, tulip: plant from 28 September to about 25 November. For planting stock, the places nearby include Walmart Garden Center (garden centre, 7 km) and Rockvalley Garden Center (garden centre, 8 km); addresses and opening hours are below.

Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. 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: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Tulip in Rockford: soil, season and weather

Nights then average below 0 °C in December–March; the coldest, January, averages -8.9 °C.

Planting28 September – 25 November
First autumn frost28 October
Coldest nightsJanuary, -8.9 °C
Soil back at 7 °C in spring19 March
Daylight11:55 on 28 September
Daylight at the winter solstice9:05

The same dates in Rockford hold for Garlic, Daffodil, Crocus and Hyacinth.

Tulip in Rockford: depth, winter cold, pests and pets

Plant tulips at a depth of two to three times the bulb’s height, at least twice the bulb’s width apart, pointed end up (RHS). Where winters are very cold, tulips benefit from deeper planting to protect them from frost penetrating the soil (RHS); here the average daily temperature drops below 0 °C in winter.

In Rockford the average daily temperature stays at 10 °C or lower for about 25 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 15–17 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Border tulips often fail to flower in their second year if left in the ground, so many gardeners grow them for one spring and plant fresh bulbs each autumn; Darwin hybrid and Kaufmanniana tulips reflower more reliably (RHS). Soils that stay wet in summer make reflowering difficult (RHS): in Rockford the three warmest months bring about 287 mm of rain together.

Grey squirrels often dig up tulip bulbs: lay chicken wire over the bed until the leaves appear, or plant daffodils among them, which squirrels avoid (RHS). Tulips are toxic to dogs, cats and horses, the bulb most of all (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Tulip in nearby cities

Around Rockford, Cedar Rapids is 3 days earlier and Chicago 9 days later.

CityDistanceDateDifference
Madison94 km27 September – 20 November1 day earlier
Chicago125 km7 October – 3 December9 days later
Milwaukee128 km2 October – 25 November4 days later
Davenport149 km30 September – 30 November2 days later
Peoria180 km1 October – 9 December3 days later
Cedar Rapids219 km25 September – 25 November3 days earlier

Where to buy tulip for planting in Rockford

Planting stock goes into the ground from 28 September to about 25 November; buy it before that. Within 15 km of Rockford OpenStreetMap lists 10 garden centres (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant tulips in Rockford?

In Rockford, tulip: plant from 28 September to about 25 November. Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

When is the last spring frost in Rockford?

Last spring frost around 26 April, first autumn frost around 28 October.

Other crops in Rockford, with their dates