Pycnanthemum incanum (Silverleaf Mountain Mint)

Prized for its silvery foliage, Pycnanthemum incanum (Silverleaf Mountain Mint) is a stiff, erect, clump-forming, aromatic perennial adorned with opposite, ovate, toothed leaves to 3 in. long (7 cm). The leaves are hoary beneath and borne on sturdy square stems. In mid to late summer, dense, rounded clusters of tiny, silvery-white, two-lipped flowers appear atop the stems. They bloom for about 6 weeks and continue into early fall. The blossoms are often spotted with purple. The silvery coloring extends to the stems and leaves subtending the flower clusters. All parts of the plant exude a pleasant minty fragrance when crushed. The flowers are a favorite of butterflies, moths and beneficial pollinators. The leaves have been used to flavor teas. Pycnanthemum incanum is a good choice for meadows, wildlife gardens, woodland edges where it can roam freely. Great for water-wise landscapes or for erosion control.

• Grows up to 2-3 ft. tall (60-90 cm) and 3-4 ft. wide (90-120 cm). Can spread aggressively (by creeping rhizomes) but is easily controlled by division every 3-5 years.
• Thrives in full sun to part shade in average, dry to medium, well-drained soils. Best flower production is obtained in full sun. Drought and dry soil tolerant.
• Best for prairies and meadows, native plant gardens and naturalized areas.
• No serious pest or disease issues.
• Propagate by cuttings in early summer or division in late fall or early spring.
• Native to the eastern United States.