Leave some space in your garden for this early purple sprouting broccoli. These extremely cold-hardy biennial plants grow over the winter months ready for early spring harvest. Purple sprouting broccoli provide very small, sweet purple flowering shoots in the spring. The tall plants from Red Spear broccoli seeds are very generous with small side-shoots for many weeks. Sow in late summer for February to March harvest. Steam or enjoy the stems and flower heads raw. They are also very nice in stir-fried dishes and soups. Purple sprouting broccoli has been hugely popular with UK gardeners, and is now seeing a rise of interest in North America.