Ageratina altissima
TAXONOMY
FamilyAsteraceae
GenusAgeratina
Zone4
LEARN MORE
Plants of the World OnlineABOUT
Ageratina altissima, commonly known as White Snakeroot, is a perennial herb in the Asteraceae family. It is native to North America and typically found in woodlands and shaded areas. The plant is known for its clusters of small, white flowers and its toxic properties, particularly to livestock. It undergoes a dormancy period during the winter months.
ALSO KNOWN AS
Ageratum Altissimum
Batschia Nivea
Kyrstenia Aboriginum
Kyrstenia Borealis
White Snakeroot
Ageratina ageratoides
Ageratina altissima var. altissima
Eupatorium aboriginum
Eupatorium ageratoides var. angustatum
Eupatorium altissimum
Eupatorium boreale
Eupatorium eurybiaefolium
Eupatorium frasieri
Eupatorium odoratum
Eupatorium rugosum
Eupatorium rugosum f. rugosum
Eupatorium rugosum var. chlorolepis
Eupatorium rugosum var. rugosum
Eupatorium rugosum var. tomentellum
Eupatorium rugosum var. villicaule
Eupatorium urticifolium
Eupatorium urticifolium f. urticifolium
Eupatorium urticifolium f. verticillatum
Eupatorium urticifolium var. angustatum
Eupatorium urticifolium var. tomentellum
Eupatorium urticifolium var. trifolium
Eupatorium urticifolium var. urticifolium
Eupatorium urticifolium var. villicaule
Kyrstenia altissima
OVERVIEW
WaterMoist
SoilLoamy
LightIndirect Bright (6 Hours)
Temperature20° C
Humidity60%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
WANT MORE TIPS?
DETAILS
Care Instructions
White Snakeroot prefers bright, indirect light and moderate temperatures. It thrives in environments with moderate humidity. Regular watering is necessary, but the soil should be allowed to dry out partially between waterings. It is best suited for outdoor growth in shaded or partially shaded areas.Soil
Ageratina altissima prefers well-draining loamy soil. The soil should be kept moderately moist but not waterlogged. It can tolerate a range of soil pH levels but prefers slightly acidic to neutral conditions.Fertilizer
This plant does not have high fertilizer requirements. If needed, a balanced, all-purpose fertilizer can be applied sparingly during the growing season.Repotting
Repotting is generally not necessary for White Snakeroot as it is typically grown outdoors. However, if grown in a container, repotting can be done in the spring when the plant outgrows its pot.Propagation
White Snakeroot can be propagated by seed or division. Seeds can be sown in the spring, while division is best done in the early spring or fall. Ensure that each division has a portion of the root system.Pruning
Pruning is beneficial for maintaining the shape and health of the plant. It is best done in the late winter or early spring before new growth begins. Remove any dead or damaged stems to encourage healthy growth.Toxicity
Ageratina altissima is highly toxic, particularly to livestock such as cattle, horses, and goats. The plant contains tremetol, which can cause tremors, weakness, and even death if ingested. It is also toxic to humans if consumed.Additional
White Snakeroot is a hardy plant that can tolerate a range of growing conditions. However, due to its toxicity, it should be planted with caution, especially in areas accessible to livestock or pets.REVOLUTIONIZE YOUR PLANT CARE
Make Every Plant Smart
Plant Monitor
STAYS IN YOUR PLANT
Accurately measures the core metrics of your plant – soil moisture, light, temperature and humidity - as well as compound metrics such as Vapor Pressure Deficit (VPD) and Growing Degree Days (GDD).
Shop Now
