Lupinus Species, Tree Lupine, Yellow Bush Lupine
Lupinusarboreus

Family: Fabaceae (fab-AY-see-ee)
Genus: Lupinus (loo-PIE-nus)
Species: arboreus (ar-BOR-ee-us)

Category
Perennials
Shrubs

Water Requirements
Drought-tolerant; suitable for xeriscaping

Sun Exposure
Full Sun

Foliage

Foliage Color

Height
36-48 in. (90-120 cm)

Spacing

Hardiness
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)

Where to Grow

Danger

Bloom Color
Bright Yellow

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

Bloom Size

Bloom Time
Late Spring/Early Summer

Other details
May be a noxious weed or invasive

Soil pH requirements

Patent Information
Non-patented

Propagation Methods
Self-sows freely; deadhead if you do not want volunteer seedlings next season

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