Ageratina altissima (Native)

Common Name
White snakeroot
Plant Form
Herbs
Duration
Perennial
Max Height (ft)
5.0
Width (ft)
2.0 - 4.0
Growth Rate
Medium
Region
Coastal
Piedmont
Mountain
Hardiness Zone
5, 6, 7, 8, 9

Photographer: beachmike
Licensed under: CC BY-NC 4.0
Original photo: Original photo

Photographer: imasongster
Licensed under: CC BY-NC 4.0
Original photo: Original photo

Photographer: imasongster
Licensed under: CC BY-NC 4.0
Original photo: Original photo

Habitat

Shaded woodlands, moist forests, and thickets. Common in the Virginia mountains; frequent in the Piedmont; infrequent in the inner Coastal Plain; rare in the outer Coastal Plain

Wildlife value

Flowers are attractive to butterflies, especially smaller species, and other pollinators, including leaf-cutting bees. Songbirds eat the seeds

High Value Generalist
Earth Sangha lists this plant as a "High Value Generalist" because it is easy to grow, occurs across a wide range of habitats and is known to be of high value to wildlife

Poisonous to Humans:
Poison Severity:
High
Poison Symptoms:

The plant is highly toxic and may be fatal if eaten. Toxicity is characterized by weakness, nausea, abdominal pain, vomiting, delirium, cardiac damage, prostration and eventually, coma. Even drinking milk from cows that have eaten the plant will cause "milk sickness" and vomiting

Causes Contact Dermatitis:
No
Poison Part:
Flowers, Fruits, Leaves, Roots, Sap Juice, Seeds, Stems
Also a Problem For:
Horses
Flower Color
Cream/White
Flower Prominence
Conspicuous
Bloom Time
Late Summer
Fall
Light Requirements
Full sun
Partial sun
Shade
Moisture Requirements
Moist
Average
Soil Texture
Clay
Loamy
Low Maintenance
Yes
Deer Resitant
Yes
Seed or Fruit eaten by wildlife?
Yes
Pollinators
Bees
Butterfiles
Commercially available
Yes
Carries Seeds (may not be available)

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