White snakeroot (Ageratina altissima (syn. Eupatorium rugosum))
Also known as:
White snakeroot is an open, smooth-stemmed perennial wildflower reaching 2 to 4 feet high with slightly branched clusters of bright white flowers in late summer and fall. Commonly found in shaded woodlands and naturalized landscapes.
- Large plant (more than 24 inches)
- Partial sun/shade (4-6 hrs light daily),
- Full shade (4 hrs or less of light daily)
- Chicago area,
- North America