Swiss Chard Red (Beta Vulgaris ssp. Cicla Red) -You will want to grow this highly nutritious plant in your herb garden! Swiss Chard is considered to be a biennial, and it is full of nutritious value. It contains 13 different polyphenol antioxidants including the cardio-protective flavonoid, kaempferol. It also contains an additionalflavonoid called syringic acid which has had quite a large amount of current research done due to its properties that help regulate blood sugar. In addition to the antioxidants, Swiss Chard has vitamins E and K, along with magnesium, manganese and potassium.