Eupatorium purpureum. The North American native was growing in 18th century flower borders. It is a tall, clump forming perennial, reaching 5-7' in height and spreading 2-4' wide. Large domed, compound inflorescences of pinkish-purple flowers are produced atop dark green leaves from July to September. Butterflies love the flowers!
Best grown in full sun to part shade in moist soil. The plants provide great height in the garden and tolerate deer and clay soil. These attributes make them a wonderful addition to cottage gardens, meadows, native plantings or the water's edge.
Sow seeds directly into the soil in the fall and cover with 1/4" of soil. The seed requires cold stratification and will germinate in the spring when the soil warms.
USDA Zones 4-9.
Heirloom seeds are collected, cleaned and packaged by hand at Mount Vernon.