Heirloom Vegetable. Broccoli has been cultivated for over 2000 years. This garden favourite is native to the Mediterranean but migrated throughout the world to become a major vegetable of choice for home gardeners. Broccoli are high in vitamins A and C, folic acid and iron. Interestingly, broccoli contains high levels of the reputed cancer fighting compound, sulforaphane. Green Sprouting is an old Italian variety that matures early and is surprisingly easy to grow. Large vigorous plants grow to 50 cm (20″) tall. Produces heavy crops of large, solid, central heads with numerous medium size lateral heads produced later in the season. Open pollinated.