Buddleja, Butterfly Bush, Orange-eye Butterfly Bush, Summer Lilac
Buddlejadavidii 'Cornwall Blue'

Family: Scrophulariaceae (skrof-yoo-larr-ee-AY-see-ee)
Genus: Buddleja (BUD-lee-uh)
Species: davidii (duh-VID-ee-eye)
Cultivar: Cornwall Blue

Category

Perennials
Shrubs

Water Requirements

Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Sun Exposure

Full Sun
Sun to Partial Shade

Foliage

Deciduous

Foliage Color

Unknown

Height

6-8 ft. (1.8-2.4 m)

Spacing

4-6 ft. (1.2-1.8 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)

Where to Grow

Grow outdoors year-round in hardiness zone

Danger

N/A

Bloom Color

Blue-Violet
Lavender

Bloom Characteristics

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

Bloom Size

Unknown

Bloom Time

Mid Summer
Late Summer/Early Fall
Mid Fall

Other details

May be a noxious weed or invasive

Soil pH requirements

5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Unknown

Propagation Methods

From woody stem cuttings
From softwood cuttings
From semi-hardwood cuttings

Seed Collecting

Allow pods to dry on plant; break open to collect seeds