When to plant leeks in Wyoming

Leeks
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
Feb 19–Mar 5
Plant out, Cheyenne
Apr 30–May 14
Last frost, Cheyenne
May 14

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Plant leeks deep in a trench and fill it in as they grow to get long white stems.

Leeks 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 leeks 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 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Wyoming

Leeks in other states

Frost dates for every city in Wyoming