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When to plant hyacinths in Minneapolis: 24 September – 10 November

In Minneapolis, hyacinth: plant from 24 September to about 10 November. For planting stock, the places nearby include Fractal Cactus (garden centre, 6 km) and Yard Ware (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).

Hyacinth in Minneapolis: soil, season and weather

Nights then average below 0 °C in November–March; the coldest, January, averages -12.6 °C.

Planting24 September – 10 November
First autumn frost24 October
Coldest nightsJanuary, -12.6 °C
Soil back at 1 °C in spring8 March
Daylight12:07 on 24 September
Daylight at the winter solstice8:46

The same dates in Minneapolis hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in Minneapolis: depth, winter cold, pests and pets

Plant hyacinths 10 cm deep, at least 7.5 cm apart (RHS). In the ground hyacinths are fully hardy, but in containers they can be frost tender in cold winters (RHS); here winter nights average below 0 °C, so wrap the pots or move them to a sheltered spot.

In Minneapolis the average daily temperature stays at 10 °C or lower for about 27 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 12–15 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Flowers get smaller in the years after planting: for full spikes, replace the bulbs or add a few new ones each autumn (RHS).

If squirrels are a problem, protect the bulbs with wire mesh (RHS). Hyacinths are toxic to dogs, cats and horses: intense vomiting and diarrhoea (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Hyacinth in nearby cities

Around Minneapolis, Fargo is 8 days earlier and Duluth 4 days later.

CityDistanceDateDifference
Duluth219 km28 September – 10 November4 days later
Sioux Falls319 km21 September – 16 November3 days earlier
Fargo345 km16 September – 4 November8 days earlier
Cedar Rapids359 km25 September – 25 November1 day later
Madison375 km27 September – 20 November3 days later
Des Moines377 km27 September – 29 November3 days later

Where to buy hyacinth for planting in Minneapolis

Planting stock goes into the ground from 24 September to about 10 November; buy it before that. Within 15 km of Minneapolis OpenStreetMap lists 17 garden centres, 13 markets and 3 farm shops (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Minneapolis?

In Minneapolis, hyacinth: plant from 24 September to about 10 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 Minneapolis?

Last spring frost around 28 April, first autumn frost around 24 October.

Other crops in Minneapolis, with their dates