Oklahoma · zones 6b–7b
When to plant carrots in Oklahoma.
Sow between Feb 20 to Mar 25 in a typical year, keyed to Oklahoma's median last frost around Mar 30. A second, fall sowing fits Aug 9 to Sep 4. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Carrots dates for a typical Oklahoma season.
Direct sow
Feb 20 to Mar 25
Keyed to the ~Mar 30 last frost. Sow 0.25" deep, 2" apart.
Fall round
Aug 9 to Sep 4
Counted back from the ~Nov 4 first frost.
Harvest
~68 days later
~0.2 lb per plant over ~2 weeks.
Oklahoma spans more than one climate: Zone 7 is the most common zone, but the state runs 6b to 7b. 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.