
trefle.io · Taken Jan 22, 2022 by DTR (cc-by-sa)
Asteraceae
White snakeroot
Ageratina altissima
Also known as Tall boneset, White sanicle, Richweed, Eupatorium altissimum
Native Plants · Native Perennial · Woodland · Shade Tolerant · Pollinator · White Flowers · Late Bloomer · Toxic · Wildflower · North American Native · Ageratina
White snakeroot is a tough, adaptable native perennial that excels in shaded woodland gardens, thriving in average to moist, well-drained soils with partial shade. It produces fluffy white flowers in late summer and autumn that are excellent for pollinators, requiring very little attention once established. Note that all parts of this plant are toxic if ingested, so keep it away from children and animals.
Growing conditions
The details behind the basics
- Daily light
- 3 hours
- Watering
- Water moderately to keep soil evenly moist; tolerates brief dry spells once established · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- -20°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Arkansas, Austria, Belgium, Connecticut, Delaware, District Of Columbia, Florida, Georgia, Germany, Hungary, Illinois, Indiana, Iowa, Kansas, Kentucky, Korea, Louisiana, Maine, Maryland
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda, aspca
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