Known by many common names such as western snakeroot, western joepiweed, western eupatorium, and western boneset, this species is related to eastern joepiweed that is a common horticultural plant. Western joepiweed grows in rocky places at low, mid, and high elevations. At low elevations it tends to grow on rock cobble along streams. A rhizomatous plant in the aster family, western joepiweed has white to pink flowers that are favored by pollinators. Rarely grows taller than 2′- 2 1/2′.
Western joepiweed (Ageratina occidentalis) seed packets contain approximately 120 seeds per packet.
Seed Germination Instructions
No pretreatment required. Sow outside in fall to early spring. Germination may be improved with 30 days cold stratification.