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When to plant crocuses in Pueblo: 28 September – end of December

In Pueblo, crocus: plant from 28 September to the end of December. For planting stock, the places nearby include Musso Farms (farm shop, 13 km) and Mauro Farms Market & Bakery (farm shop, 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 average daily temperature here stays above 0 °C all winter, and at least three months average 7 °C or less: our rule of thumb for the winter cold spring bulbs need. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS.

Crocus in Pueblo: soil, season and weather

Nights then average below 0 °C in November–March; the coldest, January, averages -5.3 °C.

Planting28 September – end of December
First autumn frost28 October
Coldest nightsJanuary, -5.3 °C
Soil back at 1 °C in spring12 January
Daylight11:57 on 28 September
Daylight at the winter solstice9:30

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

Crocus in Pueblo: 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 Pueblo the average daily temperature stays at 10 °C or lower for about 21 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 Pueblo, Cheyenne is 15 days earlier and Albuquerque 12 days later.

CityDistanceDateDifference
Denver168 km15 September – 14 December13 days earlier
Fort Collins258 km21 September – 5 December7 days earlier
Santa Fe (United States)309 km26 September – 11 December2 days earlier
Cheyenne321 km13 September – 4 December15 days earlier
Grand Junction356 km27 September – 7 December1 day earlier
Albuquerque398 km10 October – end of December12 days later

Where to buy crocus for planting in Pueblo

Planting stock goes into the ground from 28 September to the end of December; buy it before that. Within 15 km of Pueblo OpenStreetMap lists 4 garden centres, 3 farm-supply shops, 2 markets and 3 farm shops (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Pueblo?

In Pueblo, crocus: plant from 28 September to the end of December. 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 Pueblo?

Last spring frost around 21 April, first autumn frost around 28 October.

Other crops in Pueblo, with their dates