Eutrochium

Eutrochium is a genus of herbaceous perennial plants in the family Asteraceae, commonly known as Joe-Pye weeds. These plants are native to North America and are characterized by their tall, upright growth habit, large, often showy flower clusters, and rough, hollow stems. They are typically found in moist to wet habitats, such as meadows, marshes, and stream banks.

The genus Eutrochium was formerly included within the genus Eupatorium. However, molecular phylogenetic studies led to the reclassification of these plants into their own distinct genus. This genus includes several species, such as Eutrochium purpureum (Sweet Joe-Pye Weed), Eutrochium maculatum (Spotted Joe-Pye Weed), and Eutrochium dubium (Little Joe-Pye Weed).

Eutrochium species are valued in landscaping for their dramatic height and late-season floral displays. The flowers, which typically bloom from mid-summer to early fall, are usually shades of pink, purple, or cream and are highly attractive to butterflies and other pollinators. The seed heads that follow the blooms can provide winter interest and food for birds. Despite their common name, Joe-Pye weeds are generally considered desirable garden plants rather than invasive weeds. They are relatively low-maintenance and can tolerate a range of soil conditions, though they perform best in consistently moist soil.