Lupinus arboreus

Tree lupin

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Key information

Plant type

Evergreen shrub

Flower colour





Half hardy

Skill level


photo by Fiona Lea, copyright GAP Photos (104633)

Plant details

Bushy tree lupins from California have wonderfully sweet-scented, pale yellow flowers at the end of spring. They are fast-growing and sprawling, and make good gap fillers among slower-growing shrubs. The lupins don't live that long, about three years, but are quickly replaced by self-sown seed, which reach a good size the following year. They look very effective when combined with azaleas. It has been given the Award of Garden Merit by the RHS.

Family: Papilionaceae

Genus: Lupinus

Species: arboreus

Plant type: Evergreen shrub

Flower colour: Yellow

Foliage colour: Light green

Feature: Flowers

Sun exposure: Full sun

Soil: Well-drained/light, Acidic, Sandy

Hardiness: Half hardy

Skill level: Beginner

Height: 150cm

Spread: 150cm

Time to plant seeds: April to April

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