Ageratina Species, Havana Snakeroot, Shrubby Boneset, Thoroughwort, White Mistflower
Ageratinahavanensis

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Ageratina (ad-jur-uh-TY-nuh)
Species: havanensis (hav-an-EN-sis)

Synonym:Eupatorium ageratifolium

Synonym:Eupatorium havanense

Category
Perennials
Shrubs

Water Requirements
Drought-tolerant; suitable for xeriscaping

Sun Exposure
Sun to Partial Shade
Light Shade

Foliage
Deciduous

Foliage Color

Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Hardiness
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)

Where to Grow

Danger
N/A

Bloom Color
Pale Pink
White/Near White

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant

Bloom Size

Bloom Time
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods
From softwood cuttings
From seed; direct sow after last frost

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds