It is grown in warm climates and is a seasonal plant, biennial and triennial, abundant in winter but the best harvest is in autumn and spring in Mediterranean regions. It is an important food in the Mediterranean diet. There are many varieties, but the most notable ones are: Blanca de Tudela, Camus from Great Britain, Espinosa Sardo from Genoa, Small Violet from the French Provence, Madrileña, Romanesca, Californiana, Verde de Laón from Italy, Blanca de los Pirineos. In Spain, the production of Benicarló (Castellón), De la Vega Baja, del Segura (Alicante), from the huerta de Múrcia and from the campo de Cartagena stands out. It is a low-calorie food so it is recommended in weight loss diets. It contains vitamins A, B6, calcium, phosphorus, iron, carbohydrates, proteins, potassium and sodium, beneficial for avoiding digestive and metabolic problems. It has purifying properties, regulates intestinal transit and strengthens the immune system. It is also recommended to combat headaches and cholesterol, it is diuretic and restorative and purifies the blood. When buying them, the most closed ones should be chosen because they are the most tender.