In California, the brussels sprout season typically runs mid-June to late January, with peak availability early September through late December. Exact weeks shift a little with each year's weather.
Can I pick my own brussels sprouts in California?
Rarely u-pick — look for whole stalks at fall farmers markets and farm stands instead. The best market weeks are early September through late December.
How long does brussels sprout season last in California?
about 32 weeks end to end — mid-June to late January. The early and late shoulders are real but lighter; the solid stretch of chalk on the band is the sure bet.