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When to plant hyacinths in Winnipeg: 12 September – 26 October

In Winnipeg, hyacinth: plant from 12 September to about 26 October. For planting stock, the places nearby include Ron Paul Garden Centre (garden centre, 13 km) and Lacoste Garden Centre (garden centre, 13 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 Winnipeg: soil, season and weather

Nights then average below 0 °C in November–April; the coldest, February, averages -18 °C.

Planting12 September – 26 October
First autumn frost12 October
Coldest nightsFebruary, -18 °C
Soil back at 1 °C in spring11 April
Daylight12:51 on 12 September
Daylight at the winter solstice8:05

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

Hyacinth in Winnipeg: 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 Winnipeg the average daily temperature stays at 10 °C or lower for about 30 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 Winnipeg, Regina is 6 days earlier and Duluth 16 days later.

CityDistanceDateDifference
Fargo337 km16 September – 4 November4 days later
Bismarck436 km15 September – 4 November3 days later
Duluth508 km28 September – 10 November16 days later
Regina536 km6 September – 22 October6 days earlier
Thunder Bay598 km23 September – 30 October11 days later
Minneapolis619 km24 September – 10 November12 days later

Where to buy hyacinth for planting in Winnipeg

Planting stock goes into the ground from 12 September to about 26 October; buy it before that. Within 15 km of Winnipeg OpenStreetMap lists 5 garden centres and 4 markets (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Winnipeg?

In Winnipeg, hyacinth: plant from 12 September to about 26 October. 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 Winnipeg?

Last spring frost around 12 May, first autumn frost around 12 October.

Other crops in Winnipeg, with their dates