Butterfly Bush, Summer Lilac, Orange-eye Butterfly Bush
Buddleja davidii

Family: Buddlejaceae
Genus: Buddleja (BUD-lee-uh)
Species: davidii (duh-VID-ee-eye)

Synonym:Buddleia davidii

Synonym:Buddleia variabilis

Synonym:Buddleja variabilis

Category
Shrubs

Height
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)

Spacing
6-8 ft. (1.8-2.4 m)

Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
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)

Sun Exposure
Full Sun

Danger
Pollen may cause allergic reaction

Bloom Color
Pink
Fuchsia (Red-Purple)
Light Blue
Violet/Lavender
White/Near White

Bloom Time
Late Spring/Early Summer

Foliage
Herbaceous

Other details
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater

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 semi-hardwood cuttings

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