Utah · zones 6a–8b
When to plant potatoes in Utah.
Sow between Mar 24 to Apr 26 in a typical year, keyed to Utah's median last frost around May 1. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Potatoes dates for a typical Utah season.
Direct sow
Mar 24 to Apr 26
Keyed to the ~May 1 last frost. Sow 4" deep, 12" apart.
Harvest
~90 days later
~3 lb per plant over ~1 weeks.
Utah spans more than one climate: Zone 6 is the most common zone, but the state runs 6a to 8b. That's why the planner works from your ZIP code's frost dates, not your zone — mountain and coastal gardens in the same state can be three weeks apart.