100 days. Sprouts keep very well on the stalk. Medium to large sprouts on tall plants. Hybrid.
A video about taking the top off of brussels sprout plants to get a better harvest.
About Brussels Sprouts
A fall crop, sprouts can be harvested in Minnesota until temperatures fall below 20°F. Pick from the bottom of the stalk up. Frost actually improves the flavor. The leaves are edible, too. Cutting the top off the plant in late August encourages better sprout production. Rotate crop yearly.