Salvia plants are some of the most preferred home garden plants, valued for their culinary, medicinal and aesthetic uses. You can grow and maintain healthy salvias with little effort in your garden. Salvia is also referred to as sage and is a perennial herb that grows as different-sized flowering shrubs. Salvia comes in more than 800 different varieties. The plants differ in mature size, color of flowers and growing condition requirements. Some salvias are native to tropical regions, while others are more cold hardy. Salvia has been used for medicinal properties for centuries in many cultures around the world. Salvia home garden plants have tall stems with leaves and tall stalks of flower buds.