Romanesco is a variety of green cauliflower with pointed, lime-green curds. It is more delicate than the standard cauliflower, and cooks more quickly. You may also find orange or purple cauliflowers in farmers’ markets and farm shops.
Choose cauliflowers with firm, compact, creamy-white heads, stout fresh leaves, and clean white stalks. Avoid any with limp, yellowing leaves, slimy stalks or spotted brown curds.
Cauliflower is in season from February to May and again from August to December.