Calabrese Green Sprouting Broccoli
(Brassica oleracea) Italian heirloom variety brought to the United States by immigrants in the 1880's and commercialized by the seed trade in the first part of the twentieth century. Plants produce a 5-6" central head followed by numerous side shoots. If harvested regularly, plants will produce for several weeks, longer in cold climates. 50-70 days to harvest. 100 seeds per packet.
CULTURE: Sow seeds indoors approximately 3-4 weeks before desired transplant date. Once germination has occurred it is best to keep air temperatures around 60 degrees to prevent bolting. Transplant outdoors 12-18" apart in rows 18-36" apart. Broccoli plants prefer temperatures between 55-75 degrees, but will tolerate much cooler temperatures and even some light frosts. For this reason, spring and fall plantings produce the longest, most flavorful harvests.