Eupatorium purpureum, Sweet Joe Pye Weed

Sweetscented joe-pye weed
Eupatorium purpureum

Hardiness: Zones 4 to 8
Plant type: Herbaceous perennial
Height: 3- 4'
Spread: 2- 3'
Sun: Full sun to part shade
Water: Medium
Bloom time: July to September
Bloom color: Pink-purple
Soil: Clay-based, moist, organically rich soils, loamy, average well-draining soils, neutral (≈7)

Other notes: Flowers and crushed leaves are vanilla-scented.

More information on this plant here.