Lupinus polyphyllus Lindl.
Bigleaf Lupine, Blue-pod Lupine, Meadow Lupine, Bog Lupine
Fabaceae (Pea Family)
USDA Symbol: lupo2
Blue-pod lupine or meadow lupine is a 3-5 ft., robust perennial with bold, rich-green, palmate leaves and stately spires of large, deep-blue, purple or reddish flowers. 1 or several mostly unbranched, stout, hollow stems with violet or blue-violet pea flowers in long dense racemes.
From the Image Gallery
Bloom InformationBloom Color: Pink , Blue , Purple
Bloom Time: May
DistributionUSA: AK , CA , CT , MA , ME , MI , MN , MT , NH , NV , OR , VT , WA , WI
Canada: BC , ON , PE
Native Distribution: Coast Ranges from Santa Cruz Co. to B.C.; e., primarily in the mts., to Alt. & CO
Native Habitat: Streambanks, meadows & other moist or wet places
Growing ConditionsLight Requirement: Sun , Part Shade
Soil Moisture: Dry , Moist
Soil pH: Acidic (pH<6.8)
Soil Description: Moist, cool soils.
BenefitUse Wildlife: Hummingbirds, Butterflies
Warning: POISONOUS PARTS: Seeds. Toxic only if eaten in large quantities. Symptoms include respiratory depression and slow heartbeat, sleepiness, convulsions. Toxic Principle: Alkaloids such as lupinine, anagyrine, sparteine, and hydroxylupanine. (Poisonous Plants of N.C.)
Conspicuous Flowers: yes
Value to Beneficial InsectsSpecial Value to Native Bees
Special Value to Bumble Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationDescription: Sow seeds in fall or divide mature plants in spring or late summer. Seeds may be slow to germinate.
Seed Collection: The wooly, 1-2 in. pod fruit contains 5-9 mottled seeds which turn dark brown at maturity.
Seed Treatment: Fresh seeds need no pretreatment, but dry seeds need scarification. The latter can be steeped for twelve hours in water brought just to a boil.
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Native Seed Network - Corvallis, OR
Additional resourcesUSDA: Find Lupinus polyphyllus in USDA Plants
FNA: Find Lupinus polyphyllus in the Flora of North America (if available)
Google: Search Google for Lupinus polyphyllus
MetadataRecord Modified: 2009-11-23
Research By: TWC Staff