Salvia sagittata

Arrowleaf sage is a blue-flowered, herbaceous perennial in the mint family (Lamiaceae) native to the high elevations (above 9000 feet) in the Andes Mountains of Colombia, Ecuador and Peru. It is one of the larger sages, growing 3 to 5 feet tall and 3 to 4 feet wide. The specific epithet is Latin and refers to the arrowhead shape of the leaves. 

Plant in well-drained, highly organic soils where this sage will get at least half a day of full sun, and you will enjoy the flowers from early summer until frost. Water regularly, especially during dry spells, and mulch around the roots. It is winter hardy to 20 degrees F with protection. In colder areas, stem cuttings can be taken, rooted on a sunny windowsill and planted out in spring. It is resistant to browsing by deer and is attractive to pollinators. Being native to the Andes, it prefers cooler summers and may have problems with heat and humidity. 

Arrowleaf sage is especially attractive because of its large (for a sage) leaves that are whitish on the undersides and its intensely blue flowers. This species is not widely available in the trade, but it is worth seeking out. The flower color is outstanding. 

Its tall stature makes it an excellent choice for the back of a border or bed in a butterfly or pollinator garden. It is suitable for container culture.

Insects, Diseases, and Other Plant Problems: Whitefly, aphids, mealybugs, and spider mites are insect problems. Rust, powdery mildew, stem rot, and fungal leaf spot are disease problems.

VIDEO Created by Elisabeth Meyer for "Annuals, Perennials, Vines, and Groundcovers," a plant identification course developed in partnership with Longwood Gardens. 

More information on Salvia.