Genus Santolina is commonly known by its other names, which include lavender cotton, holy flax, and gray santolina. This plant belongs to the Asteraceae family, and it has a beautiful silver foliage that is commonly used for garden borders. Santolina is a Mediterranean plant, which means it loves to grow in dry and hot environments. It is also known for its insect-repelling properties, hence its common name "holy flax." In herbal medicine, Santolina is used as an antiseptic and as a digestive aid. Regardless of the name, this genus of plants adds a unique touch to any garden, and it's sure to catch the eyes of anyone who sees it.