Greenly Garden
Get the app
EN

When to plant daffodils in Yellowknife: 4 September – 4 October

In Yellowknife, daffodil: plant from 4 September to about 4 October. For planting stock, the places nearby include Boreal Garden Centre (garden centre, 3 km) and Arctic Farmer Landscaping (garden centre, 4 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).

Daffodil in Yellowknife: soil, season and weather

Nights then average below 0 °C in October–April; the coldest, February, averages -27.2 °C.

Planting4 September – 4 October
First autumn frost4 October
Coldest nightsFebruary, -27.2 °C
Soil back at 7 °C in spring20 May
Daylight14:09 on 4 September
Daylight at the winter solstice4:58

The same dates in Yellowknife hold for Garlic, Tulip, Crocus and Hyacinth.

Daffodil in Yellowknife: depth, winter cold, pests and pets

Plant daffodils three times the bulb’s height deep (RHS): about 13–15 cm for large bulbs, 15–20 cm apart (University of Georgia Extension). The RHS advises planting them early in autumn, ideally in September in the UK, so do not leave them late: aim for the start of the window, 4 September.

In Yellowknife the average daily temperature stays at 10 °C or lower for about 37 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.

Daffodils are long-lived: clumps slowly expand over the years (RHS). Leave the leaves for at least eight weeks after flowering — they feed next year’s flowers (University of Georgia Extension).

Squirrels avoid daffodils, so they can be planted among tulips to reduce losses (RHS). Daffodils are toxic to dogs, cats and horses; the bulbs are the most poisonous part, and a large amount can cause convulsions and heart rhythm problems (ASPCA).

Sources: RHS, University of Georgia Extension, Wisconsin Horticulture Extension, ASPCA.

Daffodil in nearby cities

Around Yellowknife, Whitehorse is 6 days earlier and Kelowna 27 days later.

CityDistanceDateDifference
Edmonton991 km6 September – 19 October2 days later
Whitehorse1,107 km29 August – 7 October6 days earlier
Juneau1,189 km6 September – 12 October2 days later
Saskatoon1,235 km6 September – 19 October2 days later
Calgary1,268 km1 September – 26 October3 days earlier
Kelowna1,432 km1 October – 27 November27 days later

Where to buy daffodil for planting in Yellowknife

Planting stock goes into the ground from 4 September to about 4 October; buy it before that. Within 15 km of Yellowknife OpenStreetMap lists 2 garden centres (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant daffodils in Yellowknife?

In Yellowknife, daffodil: plant from 4 September to about 4 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 Yellowknife?

Last spring frost around 23 May, first autumn frost around 4 October.

Other crops in Yellowknife, with their dates