This is the garden sage that is used in cooking. It is used in poultry and meat seasonings. It is a medicinal perennial too. (Salvia Officialis) A perennial herb native to the Mediterranean, sage, is traditionally used in stuffing for turkeys during the holidays. The plant grows about 3 ft. tall and wide with grey/green leaves and blue flower spikes. Medicinally, it is used as a gargle for sore throats and for menopause problems. This plant is easy to grow.