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When to plant crocuses in Regina: 6 September – 22 October

In Regina, crocus: plant from 6 September to about 22 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.

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).

Crocus in Regina: soil, season and weather

Nights then average below 0 °C in November–April; the coldest, February, averages -16.4 °C.

Planting6 September – 22 October
First autumn frost6 October
Coldest nightsFebruary, -16.4 °C
Soil back at 1 °C in spring8 April
Daylight13:15 on 6 September
Daylight at the winter solstice8:00

The same dates in Regina hold for Garlic, Tulip, Daffodil and Hyacinth.

Crocus in Regina: depth, winter cold, pests and pets

Plant Dutch crocuses (Crocus vernus) about 12 cm deep and 9 cm apart; smaller species go 7–10 cm deep (RHS).

In Regina the average daily temperature stays at 10 °C or lower for about 31 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.

Crocuses multiply on their own (they naturalise); in a lawn, hold off mowing until their leaves die back (RHS).

Birds, squirrels and rodents damage crocuses; planting under metal mesh may reduce losses (RHS). Spring crocus gives dogs and cats vomiting and diarrhoea; do not confuse it with autumn crocus (Colchicum), which is very toxic (Pet Poison Helpline).

Sources: RHS, Wisconsin Horticulture Extension, Pet Poison Helpline.

Crocus in nearby cities

Around Regina, Calgary is 5 days earlier and Bismarck 9 days later.

CityDistanceDateDifference
Saskatoon235 km6 September – 19 Octobersame day
Bismarck494 km15 September – 4 November9 days later
Winnipeg536 km12 September – 26 October6 days later
Billings594 km14 September – 23 November8 days later
Calgary668 km1 September – 26 October5 days earlier
Helena693 km3 September – 5 November3 days earlier

Where to buy crocus for planting in Regina

Planting stock goes into the ground from 6 September to about 22 October; buy it before that. Within 15 km of Regina OpenStreetMap lists 9 garden centres, 1 farm-supply shop, 1 plant nursery and 3 markets (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Regina?

In Regina, crocus: plant from 6 September to about 22 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 Regina?

Last spring frost around 14 May, first autumn frost around 6 October.

Other crops in Regina, with their dates