White Snakeroot (Ageratina altissima)

from $4.00

Ageratina altissima, commonly known as White Snakeroot, is a native perennial plant found in woodlands, forest edges, and along streambanks throughout Illinois. It thrives in rich, moist soils and prefers partial to full shade.

This plant features clusters of small, white flowers that bloom in late summer to early fall, attracting pollinators such as bees and butterflies. The leaves are rough-textured, dark green, and heart-shaped. The plant can grow to a height of 1.5 to 3 feet and often forms dense colonies in shaded environments.

For Illinois native plant enthusiasts, Ageratina altissima is a great addition to woodland gardens or naturalized areas. While it is toxic to livestock (causing tremors if ingested), it is valuable for pollinators and provides late-season interest in shaded habitats. White snakeroot can also help with soil stabilization in moist, shaded areas.

Size:

Ageratina altissima, commonly known as White Snakeroot, is a native perennial plant found in woodlands, forest edges, and along streambanks throughout Illinois. It thrives in rich, moist soils and prefers partial to full shade.

This plant features clusters of small, white flowers that bloom in late summer to early fall, attracting pollinators such as bees and butterflies. The leaves are rough-textured, dark green, and heart-shaped. The plant can grow to a height of 1.5 to 3 feet and often forms dense colonies in shaded environments.

For Illinois native plant enthusiasts, Ageratina altissima is a great addition to woodland gardens or naturalized areas. While it is toxic to livestock (causing tremors if ingested), it is valuable for pollinators and provides late-season interest in shaded habitats. White snakeroot can also help with soil stabilization in moist, shaded areas.

Bloom: late summer through the fall

Habitats: bluffs; fence rows with woody vegetation; overgrown vacant lots; moist to slightly dry deciduous woodlands; partially shaded to shaded seeps; powerline clearances in woodlands; shady corners of pastures and yards; woodland borders; wooded meadows along rivers

Lifespan: perennial

Moisture: moist to slightly dry

Plant type (height): forb (1.5 to 3 feet)

Requirements: partial sun to full shade

Soil: clay-loam; loam