Scientific Name: Buddleja davidii
Common Name: butterfly bush
Family Name: Scrophulariaceae
Origin: S.E. Asia / Japan / China
Hardiness Zone: Zone 5: (-29 to -23 °C)
Plant Type: Invasive plant, Shrub - deciduous
Mature Size: 2 - 3m x 3 - 4m (height x width)
Habit: Arching, Upright
Form: Vase
Texture: Medium
Landscape Uses: Attract butterflies, Erosion control, Fragrance, Summer interest
Exposure: Full sun, Part sun/part shade
Soil or Media: Well-drained
Leaves: Simple, Opposite, Soft flexible, Pinnate venation, Tomentose, Lanceolate, Serrulate
Flowers: Thyrse, White, Blue, Purple, Pink, Jun-Jul-Aug-Sep
Fruit: Capsule, Brown, Sep-Oct-Nov, (Persistent)
Key ID Features:
Tall perennial with pubescent and angular (4-8 sided) new growth; leaves opposite, lanceolate, most blades 8-25cm long x 2-7cm wide, green/grey-green on top, white below and pubescent; raceme large, dense, purple, persistent. Winter ID: persistent opened capsules, buds opposite, ovoid, 1-2mm long, grey, pubescent, open in Feb.