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Bransford, W.D. and Dolphia
Lupinus polyphyllus Lindl.
Bigleaf lupine, Blue-pod lupine, Meadow lupine, Bog lupine
USDA Symbol: lupo2
USDA Native Status: Native to U.S.
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.
This somewhat succulent lupine is one of the tallest and lushest western species. It has been crossed with other lupines, particularly Tree Lupine (L. arboreus), for beautiful horticultural hybrids.
Plant CharacteristicsDuration: Perennial Habit: Herb Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Pink , Blue , Purple
Bloom Time: May
AK , CA , CT , MA , ME , MI , MN , MT , NH , NV , OR , VT , WA , WI Canada: BC
, 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 USDA Native Status: L48(N),
AK (I?), CAN(N)
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
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:
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Native Seed Network
- Corvallis, OR
Recommended Species Lists
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Record Modified: 2009-11-23
Research By: TWC Staff