Green asparagus develops its colour as the spear emerges from the soil into direct sunlight. Long, thick, dark green, glossy spears with tightly closed heads are the best quality, and correct cooking results in vibrant green spears with a tender, crisp texture.
It is packed with nutrition, including B-group vitamins, vitamin C and potassium, and is believed to have bio-active compounds, like antioxidants, that help protect the body against disease.