Lupinus polyphyllus ssp. polyphyllus

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USDA Hardiness zone: Zn5a -15º to -20ºF

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Lupinus polyphyllus ssp. polyphyllus

Large leaf lupine. This is the form that is native to the western part of the state. There are 5 other subspecies, this is the Willamette Valley form. A large bushy perennial famous for the most showy flowers in the genus. This is the direct descendent that forms the colorful clumps along our freeways. A great large garden plant and not a long lived plant. Generally 3-5 years is antiquity for this species. The large palmate divided deep green leaves are coated in fine fur. This makes raindrops turn to pure mercury as they balance on the leaves. The most commonly seen flower color forms in the Willamette Valley are generally blue and purple and solid colors. The multi-color vastly larger selections are just as adaptable as the species. Large rocket like flower trusses rise to 3′ tall in late spring to early summer. Loved by insects the foliage is often fodder for native fauna. Excellent pollinator perennial or cut flower. Large peapods stick out horizontally from the spent flower stems. Reliably self sows if you contain the competition from foreign exotics and turf grasses. Potted plants should be watered regularly through their first summer. In subsequent years it can rely on natural rainfall. Very deer and rabbit resistant. To 3′ wide when happy.  Protect from slugs/snails. Oregon native plant.

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