What is salvia? Salvia, or sage, which is a member of the mint family, appears as a colorful spike of densely packed flowers, with tubular flowers atop square stems and velvety leaves. Salvia species include herbaceous plants that are annual, biennial, or perennial, as well as woody subspecies. Like other Lamiaceae members, salvia stems are usually angled. Salvia leaves are usually entire, but...