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When to plant crocuses in Las Vegas: by 12 November

In Las Vegas, crocus: plant by 12 November. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include Star Nursery (plant nursery, 10 km); addresses and opening hours are below.

Crocus in Las Vegas: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 4.1 °C.

Plantingby 12 November
First autumn frost12 December
Coldest nightsJanuary, 4.1 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:21 on 12 November
Daylight at the winter solstice9:42

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

Crocus in Las Vegas: 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 Las Vegas the average daily temperature stays at 10 °C or lower for about 8 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. That is less than the bulbs need, and without more cold they may not flower properly. The cold can also be given in a refrigerator at about 2–7 °C, as Wisconsin Horticulture Extension does for crocuses forced in pots.

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 Las Vegas, Elko is 60 days earlier and Santa Barbara 3 days later.

CityDistanceDateDifference
Flagstaff336 km21 September – end of December52 days earlier
Fresno419 kmby 5 November7 days earlier
Santa Barbara457 kmby 15 November3 days later
Elko522 km13 September – 15 November60 days earlier
Carson City526 km22 September – end of December51 days earlier
Reno555 km28 September – end of December45 days earlier

Where to buy crocus for planting in Las Vegas

Planting stock goes into the ground by 12 November; buy it before that. Within 15 km of Las Vegas OpenStreetMap lists 10 garden centres, 1 plant nursery and 1 market (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Las Vegas?

In Las Vegas, crocus: plant by 12 November. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in Las Vegas?

Last spring frost around 6 February, first autumn frost around 12 December.

Other crops in Las Vegas, with their dates