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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

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) — as all parts of Ageratina altissima contain tremetol; they create a dramatic effect.<br><br>Care should be taken
White Snakeroot (Ageratina Altissima) — Also, being a native species, it aids in fostering local biodiversity; white flowers in the garden, image 85
White Snakeroot (Ageratina Altissima) — The plant can spread vigorously, so periodic division may be necessary to control its growth; each flower, image 106
White Snakeroot (Ageratina Altissima) — as all parts of Ageratina altissima contain tremetol
White Snakeroot (Ageratina Altissima) — This North American native plant typically flourishes in hardiness zones 4 through 8; despite its beauty, it is
White Snakeroot (Ageratina Altissima) — Informing the client of the potential toxicity is crucial; space plants approximately 18-24 inches apart, image 61
White Snakeroot (Ageratina Altissima) — this North American native is excellent for adding texture to shaded garden areas; renowned for its, image 48
White Snakeroot (Ageratina Altissima) — Each flower head is relatively tiny; perennial for half, image 101
White Snakeroot (Ageratina Altissima) — making it an excellent understorey component or a component for areas with dappled sunlight
White Snakeroot (Ageratina Altissima) — commonly referred to as White Snakeroot; reaching 3-5 feet in height, image 73
White Snakeroot (Ageratina Altissima) — Informing the client of the potential toxicity is crucial; space plants approximately 18-24 inches apart, image 83
White Snakeroot (Ageratina Altissima) — White Snakeroot (Ageratina altissima) is a perennial herb that thrives in partial shade
White Snakeroot (Ageratina Altissima) — is a perennial herb that adds a touch of delicate charm to any tempered landscape; this North American, image 74
White Snakeroot (Ageratina Altissima) — is a perennial herb that adds a touch of delicate charm to any tempered landscape; this North American native plant
White Snakeroot (Ageratina Altissima) — Despite its beauty, it is hazardous to livestock and can indirectly affect humans through dairy products, image 60
White Snakeroot (Ageratina Altissima) — perennial with white blooms
White Snakeroot (Ageratina Altissima) — This North American native plant typically flourishes in hardiness zones 4 through 8; despite its beauty, image 53
White Snakeroot (Ageratina Altissima) — as all parts of Ageratina altissima contain tremetol; they create a dramatic effect.<br><br>Care should be, image 59
White Snakeroot (Ageratina Altissima) — Also, being a native species, it aids in fostering local biodiversity; white flowers in the garden
White Snakeroot (Ageratina Altissima) — they create a dramatic effect.<br><br>Care should be taken; commonly referred to as White Snakeroot
White Snakeroot (Ageratina Altissima) — commonly referred to as White Snakeroot; reaching 3-5 feet in height, image 51
White Snakeroot (Ageratina Altissima) — White Snakeroot (Ageratina altissima) is a perennial herb that thrives in partial shade; this North American native is
White Snakeroot (Ageratina Altissima) — The plant can spread vigorously, so periodic division may be necessary to control its growth
White Snakeroot (Ageratina Altissima) — Informing the client of the potential toxicity is crucial; space plants approximately 18-24 inches apart for a lush
Photographs by 8 contributors

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