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White Snakeroot

Ageratina Altissima

Design with this plant

Overview

White Snakeroot (Ageratina altissima) is a perennial herb that thrives in partial shade, reaching 3-5 feet in height. Renowned for its late-summer bloom of fluffy white flower clusters, this North American native is excellent for adding texture to shaded garden areas. Preferring moist, well-drained soil, it's a hardy choice that attracts pollinators while being wary around pets due to toxicity. Space plants approximately 18-24 inches apart for a lush display.

Sun HalfWater MediumZones 3–8Type Perennial
White Snakeroot (Ageratina Altissima) — this North American native is excellent for adding texture to shaded garden areas; renowned for its late-summer bloom
White Snakeroot (Ageratina Altissima) — Also, being a native species, it aids in fostering local biodiversity; white flowers in the garden, image 63White Snakeroot (Ageratina Altissima) — growing to a height of about 3 to 5 feet with a similar spread; white Snakeroot (Ageratina altissima) is a, image 54White Snakeroot (Ageratina Altissima) — growing to a height of about 3 to 5 feet with a similar spread; white Snakeroot (Ageratina altissima) is a perennialWhite Snakeroot (Ageratina Altissima) — Space plants approximately 18-24 inches apart for a lush display; informing the client of the potential, image 50White Snakeroot (Ageratina Altissima) — perennial for half; also, being a native species, it aids in fostering local biodiversity, image 88White Snakeroot (Ageratina Altissima) — well-draining soils but demonstrates adaptability to a range of soil types; as all parts of Ageratina, image 56+119

Culture

Sun
Half
Water
Medium
USDA zones
3–8

Shape & size

Mature height
3–5 Ft.
Mature width
2–4 Ft.

Classification

Type
Perennial
Family
Asteraceae

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Photos (126)

White Snakeroot (Ageratina Altissima) — this North American native is excellent for adding texture to shaded garden areas; renowned for its late-summer bloom
White Snakeroot (Ageratina Altissima) — Also, being a native species, it aids in fostering local biodiversity; white flowers in the garden, image 63
White Snakeroot (Ageratina Altissima) — growing to a height of about 3 to 5 feet with a similar spread; white Snakeroot (Ageratina altissima) is a, image 54
White Snakeroot (Ageratina Altissima) — growing to a height of about 3 to 5 feet with a similar spread; white Snakeroot (Ageratina altissima) is a perennial
White Snakeroot (Ageratina Altissima) — Space plants approximately 18-24 inches apart for a lush display; informing the client of the potential, image 50
White Snakeroot (Ageratina Altissima) — perennial for half; also, being a native species, it aids in fostering local biodiversity, image 88
White Snakeroot (Ageratina Altissima) — well-draining soils but demonstrates adaptability to a range of soil types; as all parts of Ageratina, image 56
White Snakeroot (Ageratina Altissima) — it's a hardy choice that attracts pollinators while being wary around pets due to toxicity; growing to a, image 71
White Snakeroot (Ageratina Altissima) — well-draining soils but demonstrates adaptability to a range of soil types; as all parts of Ageratina, image 100
White Snakeroot (Ageratina Altissima) — this North American native is excellent for adding texture to shaded garden areas
White Snakeroot (Ageratina Altissima) — Renowned for its late-summer bloom of fluffy white flower clusters; the plant can spread vigorously, so, image 69
White Snakeroot (Ageratina Altissima) — Each flower head is relatively tiny
White Snakeroot (Ageratina Altissima) — it's a hardy choice that attracts pollinators while being wary around pets due to toxicity; growing to a height of
White Snakeroot (Ageratina Altissima) — commonly referred to as White Snakeroot; reaching 3-5 feet in height
White Snakeroot (Ageratina Altissima) — This North American native plant typically flourishes in hardiness zones 4 through 8
White Snakeroot (Ageratina Altissima) — reaching 3-5 feet in height; making it an excellent understorey component or a component for areas with, image 46
White Snakeroot (Ageratina Altissima) — perennial with white blooms; well-draining soils but demonstrates adaptability to a range of soil types
White Snakeroot (Ageratina Altissima) — commonly referred to as White Snakeroot
White Snakeroot (Ageratina Altissima) — Despite its beauty, it is hazardous to livestock and can indirectly affect humans through dairy products, image 82
White Snakeroot (Ageratina Altissima) — as all parts of Ageratina altissima contain tremetol; they create a dramatic effect.<br><br>Care should be, image 81
White Snakeroot (Ageratina Altissima) — as all parts of Ageratina altissima contain tremetol; they create a dramatic effect.<br><br>Care should be, image 103
White Snakeroot (Ageratina Altissima) — making it an excellent understorey component or a component for areas with dappled sunlight; is a perennial, image 99
White Snakeroot (Ageratina Altissima) — Despite its beauty, it is hazardous to livestock and can indirectly affect humans through dairy products
White Snakeroot (Ageratina Altissima) — Renowned for its late-summer bloom of fluffy white flower clusters; the plant can spread vigorously, so periodic
Photographs by 13 contributors

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