Use Johnny's Brussels Sprouts Planting–Harvesting Program to expand your Brussels sprouts harvesting window, with varieties that mature from earliest to mid to latest possible seasonal yield.
Plant several varieties of Brussels sprouts with different maturity dates at the same time, and harvest in succession. The less cold-hardy Brussels sprouts varieties are faster-growing, and the more cold-hardy Brussels sprouts varieties are slower-growing. Each variety will mature in its appropriate season from a spring planting.