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When to plant hyacinths in Las Vegas: by 12 November

In Las Vegas, hyacinth: 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 Desert Living Center (garden centre, 5 km) and Proficient Patios & Backyard Designs (garden centre, 6 km); addresses and opening hours are below.

Hyacinth 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 Crocus.

Hyacinth in Las Vegas: depth, winter cold, pests and pets

Plant hyacinths 10 cm deep, at least 7.5 cm apart (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 12–15 weeks at about 2–10 °C. That is less than the bulbs need, and without more cold they may not flower properly. Where winters are not cold enough for long enough, LSU AgCenter keeps tulip and hyacinth bulbs in the refrigerator for at least six to eight weeks before planting, and plants them only once the soil has cooled: warm soil can cancel the chilling. Keep fruit out of that refrigerator — ripening fruit gives off ethylene, which harms the flowers (Wisconsin Horticulture Extension).

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, LSU AgCenter, ASPCA.

Hyacinth 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 hyacinth 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 hyacinths in Las Vegas?

In Las Vegas, hyacinth: 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