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When to plant hyacinths in Edmonton: 6 September – 19 October

In Edmonton, hyacinth: plant from 6 September to about 19 October. For planting stock, the places nearby include Congdon's (farm supply, 8 km) and Pure Honey (farm supply, 9 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 Edmonton: soil, season and weather

Nights then average below 0 °C in November–April; the coldest, February, averages -15.5 °C.

Planting6 September – 19 October
First autumn frost6 October
Coldest nightsFebruary, -15.5 °C
Soil back at 1 °C in spring6 April
Daylight13:23 on 6 September
Daylight at the winter solstice7:28

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

Hyacinth in Edmonton: 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 Edmonton the average daily temperature stays at 10 °C or lower for about 32 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 Edmonton, Calgary is 5 days earlier and Kelowna 25 days later.

CityDistanceDateDifference
Calgary281 km1 September – 26 October5 days earlier
Saskatoon484 km6 September – 19 Octobersame day
Kelowna580 km1 October – 27 November25 days later
Regina698 km6 September – 22 Octobersame day
Spokane711 km15 September – 23 November9 days later
Missoula744 km6 September – 12 Novembersame day

Where to buy hyacinth for planting in Edmonton

Planting stock goes into the ground from 6 September to about 19 October; buy it before that. Within 15 km of Edmonton OpenStreetMap lists 18 garden centres, 3 farm-supply shops and 9 markets (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Edmonton?

In Edmonton, hyacinth: plant from 6 September to about 19 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 Edmonton?

Last spring frost around 7 May, first autumn frost around 6 October.

Other crops in Edmonton, with their dates