Snapdragons are mostly short-lived perennial plants, though some species are annuals. The flowers are tubular, bilaterally symmetrical. It has long, slender stalks that blossom from bottom to top in a variety of colors. They should be planted in well-drained soil as their roots are prone to rotting. A single stem averages 10-15 of these unique blooms, which are grouped closely together giving the impression of a single lengthy flower.