Pycnanthemum tenuifolium
$11.95
Silver mountain-mint is wonderful for massing in habitat plantings and butterfly borders and the like, where its shimmering flower bracts on 3-foot stems create a melting misty effect in late summer. The bracts clasp a cluster of small pinkish flowers, which are bee and butterfly magnets. The foliage is pleasingly mint-scented. All mountain mints spread steadily by rhizomes, so combine them with other outwardly mobile plants. Zone 5. Propagated from Rhode Island seed. 3.5-inch pots. Photo: Gardenology.org