White snakeroot
By Lise Fracalossi
Ageratina altissima
Native to: All New England
Life cycle: Short-Lived Perennial
Light: Partial/Full Shade
Soil Moisture: Medium-Wet to Medium-Dry
Height: 2-3’
Spread: 2-3’
Spacing: 1-3’
Blooms: July to October
Bloom Color: White
Natural Habitat: Deciduous woodland understories, shady roadside edges, and disturbed areas
Pairs Well With: Blue lobelia and blue wood-aster
Benefits: Deer/Rabbit Resistant, Attracts Bees, Attracts Butterflies, Low Maintenance, Fragrant
Note: White snakeroot is poisonous to humans, pets, and horses/cattle.
“Ageratina is a striking summer bloomer, with fuzzy white flowers clustering towards the tips of the racemes. This species naturalizes readily and can be aggressive in sunny, moist spots, so make sure to site it accordingly. Particularly great for native bees!”
–Native Plant Trust
Ageratina altissima at Ausable Chasm, Keeseville, NY, August 2019
Read more: Native Plant Showcase: Ageratina altissima