FrostCal

When to Plant Asparagus in Wyoming

In a typical Wyoming location, plant outdoors Apr 19 – May 3. Across the state, the outdoor planting window starts as early as Apr 6 in Worland and as late as May 15 in Evanston. 1 city in Wyoming is essentially frost-free and can plant on a year-round schedule.

Method Plant out (slips, crowns, or tubers)
Days to maturity 730–1095 days

Perennial; plant crowns 2-4 weeks before last frost as soon as soil can be worked. Takes 2-3 years to full production.

Asparagus Planting Dates by City

CityPlant outdoors
CheyenneApr 16 – Apr 30
CasperApr 12 – Apr 26
GilletteApr 17 – May 1
LaramieMay 10 – May 24
Rock SpringsApr 26 – May 10
SheridanApr 23 – May 7
Green RiverApr 26 – May 10
EvanstonMay 15 – May 29
RivertonApr 14 – Apr 28
JacksonFrost-free: year-round planting
CodyApr 14 – Apr 28
RawlinsApr 19 – May 3
LanderApr 20 – May 4
TorringtonApr 13 – Apr 27
DouglasApr 21 – May 5
PowellApr 21 – May 5
RanchettesApr 14 – Apr 28
WorlandApr 6 – Apr 20
BuffaloApr 26 – May 10
South GreeleyApr 16 – Apr 30

Showing the 20 most populous of 20 Wyoming cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Wyoming cities.

Frequently Asked Questions

When should I plant asparagus in Wyoming?

In a typical Wyoming location, plant outdoors Apr 19 – May 3. Across the state, the outdoor planting window starts as early as Apr 6 in Worland and as late as May 15 in Evanston. 1 city in Wyoming is essentially frost-free and can plant on a year-round schedule.

When is the last frost in Wyoming?

The average last spring frost in Wyoming ranges from May 4 in Worland to June 12 in Evanston, based on NOAA 1991–2020 climate normals.

How long do asparagus take to grow?

Asparagus typically take 730–1095 days from planting to harvest. Perennial; plant crowns 2-4 weeks before last frost as soon as soil can be worked. Takes 2-3 years to full production.

Other Crops in Wyoming

When to plant asparagus in other states

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