When to plant cucumbers in Wyoming

Cucumbers
Plant out in Cheyenne
May 28–Jun 4

Across Wyoming the window opens between May 24 and June 21. Find your city below; the dates follow each town's own average last frost.

Start indoors, Cheyenne
Apr 16–Apr 23
Plant out, Cheyenne
May 28–Jun 4
Sow outdoors, Cheyenne
May 21–Jun 4
Last sowing for a harvest
Jul 9
Last frost, Cheyenne
May 14

Start seeds indoors 3–4 weeks before the last frost; plant out 2–3 weeks after the last frost; sow outdoors 1–3 weeks after the last frost. Cucumbers rot in cold soil. Sow when the soil is at least 65°F.

Cucumbers planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
CheyenneMay 28–Jun 4
CasperMay 24–May 31
GilletteMay 29–Jun 5
LaramieJun 21–Jun 28
Rock SpringsJun 7–Jun 14
SheridanJun 4–Jun 11

Questions

When should I plant cucumbers in Wyoming?

In Cheyenne, plant out from May 28 to June 4. Across Wyoming the window opens between May 24 and June 21, depending on the local last frost.

How is this date worked out?

Start seeds indoors 3–4 weeks before the last frost; plant out 2–3 weeks after the last frost; sow outdoors 1–3 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Wyoming

Cucumbers in other states

Frost dates for every city in Wyoming