PatternBaseWhite Snakeroot
Ageratina altissima, Asteraceae
Zones
3–8
Layer
Herbaceous
Lifespan
Perennial
Growth
Fast
Guild Roles
Pollinator AttractorBeneficial Insect Habitat
Growing Conditions
Sun
Partial Shade (preferred)Full Shade (tolerated)
Water
Moderate (established)High (seedling)
Soil pH
5.5 – 7.5
Tolerances
Drought
Frost
Heat
Pest Resistance
Disease Resist.
Companion Plants
Antagonistic Plants
Pointed-leaved Tick-trefoilDesmodium glutinosum
White snakeroot's toxic compounds can negatively impact legume growth and nitrogen fixation
Appalachian Mountain MintPycnanthemum flexuosumMountain mint's strong aromatics may help suppress aggressive white snakeroot growth
Calico AsterSymphyotrichum lateriflorumWhite snakeroot contains tremetol and other toxic compounds that can inhibit growth of nearby plants including asters
Hollow Joe Pye WeedEutrochium fistulosumWhite snakeroot's toxic compounds may affect related eupatorium tribe plants like Joe Pye weed
Giant Sea HollyEryngium giganteumGiant sea holly may compete with white snakeroot for light and space in temperate gardens
Uses
Functions
Late Season Pollinator SupportSmall Beneficial Fly HabitatParasitic Wasp NectarUnderstory Pollinator PlantShade-Tolerant Pollinator Support
Common Questions
What zones does White Snakeroot grow in?
White Snakeroot grows in USDA hardiness zones 3 through 8.
What are good companion plants for White Snakeroot?
Good companions for White Snakeroot include Mukheit.
Design guilds with White Snakeroot and see companion relationships visually.
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