what is kale

Kale is a leafy green vegetable that belongs to a group of cabbage cultivars grown for their edible leaves, although some are used as ornamentals. It is a cruciferous vegetable from the mustard family, which includes vegetables like broccoli and Brussels sprouts. Kale is rich in nutrients, including fiber, antioxidants, calcium, vitamins C and K, iron, and a wide range of other nutrients that can help prevent various health problems. Some of the health benefits of kale include supporting eye health, weight management, heart health, and more. Kale is usually an annual plant grown from seed with a wide range of germination temperatures. It is hardy and thrives in wintertime, and can survive in temperatures as low as −15 °C (5 °F) . Kale can be eaten raw or lightly cooked, and is available in a variety of colors, including purple.