Narrowleaf Mountain Mint (Pycnanthemum tenuifolium)
Image: North Creek Nurseries
Pycnanthem tenuifolium or the Short-leaved Mountain Mint features narrow and fine foliage with small white flower clusters in late summer. It can grow up to 3' tall and tolerate drier conditions as compared to other Mountain Mints in the genus. But like many of its kind, its foliage releases a minty aroma even in the winter. The aromatic oil in the foliage makes it tolerant to rabbit, deer, and can also act as a natural insect repeller. Dried seedheads are also attractive throughout the winter. The Mountain Mint has strong root systems, making them great stabilizers for streambanks and slopes.
Plant in average to moist soils in full sun to partial shade. This species is more tolerant to drier conditions and rocky soils. It also spreads quickly by rhizomes, so it is best to grow in clumps or cleave runners in early spring to maintain its aggressiveness.
Ordering Instructions: https://www.landhealthinstitute.org/how-to-order