In Oklahoma, the spinach season typically runs mid-March to mid-May, and again early October to mid-December, with peak availability early April through late April. Exact weeks shift a little with each year's weather.
Can I pick my own spinach in Oklahoma?
Rarely offered u-pick; buy same-day cut bunches at spring and fall market stalls. The best market weeks are early April through late April.
How long does spinach season last in Oklahoma?
about 19 weeks end to end — mid-March to mid-May, and again early October to mid-December. The early and late shoulders are real but lighter; the solid stretch of chalk on the band is the sure bet.