FrostCal

When to Plant Cauliflower in Wyoming

In a typical Wyoming location, start seeds indoors Mar 29 – Apr 12, then transplant outdoors May 3 – May 10. Across the state, the outdoor planting window starts as early as Apr 20 in Worland and as late as May 29 in Evanston. For a fall crop, plant around Jul 19 – Jul 26. 1 city in Wyoming is essentially frost-free and can plant on a year-round schedule.

Method Start indoors, then transplant
Days to maturity 55–85 days

Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.

Cauliflower Planting Dates by City

CityStart indoorsTransplantFall planting
CheyenneMar 26 – Apr 9Apr 30 – May 7Jul 23 – Jul 30
CasperMar 22 – Apr 5Apr 26 – May 3Jul 21 – Jul 28
GilletteMar 27 – Apr 10May 1 – May 8Jul 23 – Jul 30
LaramieApr 19 – May 3May 24 – May 31Jun 26 – Jul 3
Rock SpringsApr 5 – Apr 19May 10 – May 17Jul 16 – Jul 23
SheridanApr 2 – Apr 16May 7 – May 14Jul 15 – Jul 22
Green RiverApr 5 – Apr 19May 10 – May 17Jul 14 – Jul 21
EvanstonApr 24 – May 8May 29 – Jun 5Jul 4 – Jul 11
RivertonMar 24 – Apr 7Apr 28 – May 5Jul 16 – Jul 23
JacksonFrost-free: year-round planting
CodyMar 24 – Apr 7Apr 28 – May 5Jul 23 – Jul 30
RawlinsMar 29 – Apr 12May 3 – May 10Jul 24 – Jul 31
LanderMar 30 – Apr 13May 4 – May 11Jul 19 – Jul 26
TorringtonMar 23 – Apr 6Apr 27 – May 4Jul 21 – Jul 28
DouglasMar 31 – Apr 14May 5 – May 12Jul 15 – Jul 22
PowellMar 31 – Apr 14May 5 – May 12Jul 12 – Jul 19
RanchettesMar 24 – Apr 7Apr 28 – May 5Jul 23 – Jul 30
WorlandMar 16 – Mar 30Apr 20 – Apr 27Jul 23 – Jul 30
BuffaloApr 5 – Apr 19May 10 – May 17Jul 13 – Jul 20
South GreeleyMar 26 – Apr 9Apr 30 – May 7Jul 23 – Jul 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 cauliflower in Wyoming?

In a typical Wyoming location, start seeds indoors Mar 29 – Apr 12, then transplant outdoors May 3 – May 10. Across the state, the outdoor planting window starts as early as Apr 20 in Worland and as late as May 29 in Evanston. For a fall crop, plant around Jul 19 – Jul 26. 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 cauliflower take to grow?

Cauliflower typically take 55–85 days from planting to harvest. Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.

Other Crops in Wyoming

When to plant cauliflower in other states

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