Lupinus arboreus
A coastal evergreen leguminous shrub with gray-green palmately compound leaves and spires of bright yellow flowers that fixes nitrogen to stabilize dunes and support pollinators, native to dunes and bluffs but invasive outside its native range.
Common Names
Coastal Bush Lupine, Yellow Bush Lupine, Tree Lupine, Bush Lupine, Lupine
Summary
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Lifecycle
Perennial
Height
4-8 feet
Spread
4-8 feet
Hardiness Zones
Zones 7-10
Sunlight Requirements
Ideally full sun. Tolerates partial sun
Soil Type
Well-drained sandy soil
Soil Drainage
Well-drained, fast-draining soil; not waterlogged
Soil pH
6.0-6.5, slightly acidic
Bloom Color
Yellow
Bloom Time
Spring to Summer
Foliage Color
Green to gray-green
Fall Foliage Color
No fall color
Leaf Lifecycle
Evergreen broadleaf
Growth Rate
Fast
Seasons of Interest
Spring and Summer
Propagation Methods
Seeds, Cuttings, Division
Attracts Wildlife
Attracts bees, butterflies, hummingbirds, other pollinators, birds
Taxonomy
- Taxonomic Rank
- Species
- Author
- Sims
- Publication
- Bot. Mag. 18: t. 682 (1803)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Fabales
- Family
- Fabaceae
- Subfamily
- Papilionoideae
- Genus
- Lupinus
Synonyms
Lupinus arboreus var. eximius Lupinus propinquus Lupinus arborescens Lupinus macrocarpus Lupinus fruticosus Lupinus barilochensis Lupinus eximius Lupinus arboreus f. albus Lupinus arboreus f. aureus Lupinus rivularis Lupinus sericeus