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Lupinus polyphyllus (Bigleaf lupine)
Bransford, W.D. and Dolphia

Lupinus polyphyllus Lindl.

Bigleaf lupine, Blue-pod lupine, Meadow lupine, Bog lupine

Fabaceae (Pea Family)

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.

 

From the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Flower:
Fruit:
Size Class: 3-6 ft.

Bloom Information

Bloom Color: Pink , Blue , Purple
Bloom Time: May

Distribution

USA: 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
USDA Native Status: L48(N), AK (I?), CAN(N)

Growing Conditions

Light Requirement: Sun , Part Shade
Soil Moisture: Dry , Moist
Soil pH: Acidic (pH<6.8)
Soil Description: Moist, cool soils.

Benefit

Use 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
Attracts: Hummingbirds

Value to Beneficial Insects

Special Value to Native Bees
Special Value to Bumble Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Propagation

Description: 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.

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

Find native plant species by state. Each list contains commercially available species suitable for gardens and planned landscapes. Once you have selected a collection, you can browse the collection or search within it using the combination search.

View Recommended Species page

Additional resources

USDA: Find Lupinus polyphyllus in USDA Plants
FNA: Find Lupinus polyphyllus in the Flora of North America (if available)
Google: Search Google for Lupinus polyphyllus

Metadata

Record Modified: 2009-11-23
Research By: TWC Staff

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