In South Carolina, the onion season typically runs mid-April to mid-June, with peak availability early May through late May. Exact weeks shift a little with each year's weather.
Can I pick my own onions in South Carolina?
U-pick onion fields are basically unheard of — buy braids and bags straight off the farm stand. The best market weeks are early May through late May.
How long does onion season last in South Carolina?
about 9 weeks end to end — mid-April to mid-June. The early and late shoulders are real but lighter; the solid stretch of chalk on the band is the sure bet.