General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Water Preferences: Mesic
Minimum cold hardiness: Zone 4b -31.7 °C (-25 °F) to -28.9 °C (-20 °F)
Maximum recommended zone: Zone 9b
Plant Height: 12 - 48 inches
Plant Spread: 12 - 36 inches
Leaves: Unusual foliage color
Flowers: Showy
Flower Color: White
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Fall
Uses: Medicinal Herb
Cut Flower
Will Naturalize
Wildlife Attractant: Bees
Butterflies
Propagation: Seeds: Provide light
Self fertile
Stratify seeds: 8 weeks if you sow indoors
Suitable for wintersowing
Sow in situ
Start indoors
Can handle transplanting
Propagation: Other methods: Cuttings: Tip
Pollinators: Various insects
Miscellaneous: Endangered

Image
Common names
  • Small White Snakeroot
  • Lesser Snakeroot
  • Aromatic Thoroughwort
Botanical names
  • Accepted: Ageratina aromatica
  • Synonym: Eupatorium aromaticum
  • Synonym: Eupatorium latidens
  • Synonym: Ageratina aromatica var. aromatica

Photo Gallery
Location: Aberdeen, NC Pages Lake park
Date: October 18, 2023
Lesser snakeroot # 549; RAB page 1061, 179-34-22;  AG page 241, 5
Location: Aberdeen, NC Pages Lake park
Date: October 18, 2023
Lesser snakeroot # 549; RAB page 1061, 179-34-22;  AG page 241, 5
Location: Aberdeen, NC Pages Lake park
Date: October 18, 2023
Lesser snakeroot # 549; RAB page 1061, 179-34-22;  AG page 241, 5

Date: June
photo by H. Zell

Date: July
photo by H. Zell

Date: July
photo by H. Zell
Location: My garden in Belgium
Date: 2010-10-29
Location: My garden in Belgium
Date: 2010-10-29
Comments:
  • Posted by Bluespiral (Maryland - Zone 7b) on Jan 12, 2023 4:11 AM concerning plant:
    Although, as Mindy says below, bees get nectar from this plant from which they produce honey, this plant also "...contains tremetol, a complex alcohol, and glycosides. These toxins cause a fatal disease known as 'staggers' in cattle. The toxin can be passed through the milk and has caused fatalities in humans who have drunk affected cow's milk[274]".

    (quoted from Plants for a Future with respect to this plant's synonym, Ageratina altissima)

    Ageratina aromatica, is one of those poisonous plants that has great beauty with its cream/green variegated leaves and goes by other names such as Boneset, Thoroughwort, Eupatorium aromaticum 'Joicus Variegated' and Joe Pye Weed.

    It also is tolerant of a wide range of soil, light and water conditions, as I discovered in my erstwhile garden. A single volunteer appeared one year, followed by several volunteers the next year. Aesthetically I would have loved to have kept this one, but ultimately yanked them all out due to its toxic risks. (Although I don't keep cows, other mammals are said to be affected by this toxin, and I still wonder to what extent this toxin might affect other life forms. As an aside, let me say here that it was milking cows that helped Dad get through college, albeit Pearl Harbor was quite an interruption. Anyhoo, I never heard about anything like this toxin from Dad's generation.)

    ps - There is another gorgeous variegated plant said to be in genus Eupatorium: 'Bartered Bride' and has at least two scientific names:

    ----- Eupatorium purpureum 'Bartered Bride' (Joe Pye Weed) and

    ----- Eupatorium fistulosum f. albidum 'Bartered Bride' (from the Royal Horticultural Society (RHS)

    It's not every day some of us find surpassingly beautiful plants that will grow in places inhospitable to most other plants. Any corrections or comments on this post will be welcome.
  • Posted by Mindy03 (Delta KY) on May 16, 2012 5:12 PM concerning plant:
    Honey bees get nectar from this plant which produces a light colored honey.
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