White Snakeroot


White Snakeroot is incredibly poisonous to livestock with the toxins possibly be transfer to humans.  It is believe that this plant killed Abe Lincolns mother.  However it’s hard to not appreciate the dark foliage similar to stinging nettle and Ageratum like flower heads.  Just beware in whose proximity it is planted, presidential relatives and animals included.

White Snakeroot

Ageratina altissima

  • Light Exposure: Sun
  • Soil Type: Moist, fertile, well draining
  • Height: 3-6′
  • Width: 3-6′
  • Bloom Time: Late Summer
  • Bloom Colour: White, brownish
  • Foliage Colour: Gray/purple
  • Pests and Disease: Rust, powdery mildew, leaf spot, snails, slugs
  • Landscape Uses: Beds, borders
  • Special Features: Attractive foliage, attracts butterflies
  • Zone: 4-6

Example Varieties:

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