A more majestic form than your typical lupine, the tree lupine is a West Coast native that actually forms a woody trunk and branches as opposed to the typical lupine that dies back in winter. Leaves are a beautifully soft grey-green and are mostly evergreen except in the coldest temperatures. A great nitrogen fixing shrub for spaces where you want something larger than just a regular lupine.
*We are currently growing a purple flowering form of Tree Lupine*
Latin Name: Lupinus arboreus
Site and Soil: Well draining, unamended soils in full sun
Hardiness: Hardy to about 10 F.
Size at Maturity: 5-7′ tall by 3-5′ wide
Bloom Time: late spring-early summer
Pests & Diseases: None that we have observed
USDA Zone: 7b