When to plant cauliflower in Wyoming

Cauliflower
Plant out in Cheyenne
Apr 30–May 14

Across Wyoming the window opens between April 26 and May 24. Find your city below; the dates follow each town's own average last frost.

Start indoors, Cheyenne
Mar 5–Mar 19
Plant out, Cheyenne
Apr 30–May 14
Last frost, Cheyenne
May 14

Start seeds indoors 8–10 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 10–12 weeks before the first frost. When heads reach the size of an egg, tie the leaves over them to keep them white.

Cauliflower planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
CheyenneApr 30–May 14
CasperApr 26–May 10
GilletteMay 1–May 15
LaramieMay 24–Jun 7
Rock SpringsMay 10–May 24
SheridanMay 7–May 21

Questions

When should I plant cauliflower in Wyoming?

In Cheyenne, plant out from April 30 to May 14. Across Wyoming the window opens between April 26 and May 24, depending on the local last frost.

How is this date worked out?

Start seeds indoors 8–10 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 10–12 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Wyoming

Cauliflower in other states

Frost dates for every city in Wyoming