Lupinus polyphyllus
Large-Leaved Lupine
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Large-Leaved Lupine (Lupinus polyphyllus) - Description
L. polyphyllus is native to moist places from California to the British Columbia. It blooms in the summer, bearing blue, purple, or reddish flowers in clusters 6 to 24 inches long.
Large-Leaved Lupine (Lupinus polyphyllus) - Blooming
Showy clusters of pea like flowers borne in spike like panicles or whorls. Consist of an upright petal, two side petals, and two lower petals that are joined at base.
Large-Leaved Lupine (Lupinus polyphyllus) - Growth
Annuals, perennials, subshrubs, and shrubs with palmate leaves. Grows best in full sun or partial shade, and sites where summers are cool.
Large-Leaved Lupine (Lupinus polyphyllus) - Planting
Propagate by seeds sown in individual pots and transplant with care. Soak seeds 24 hours before sowing. Can also propagate with cuttings from shoots at the base of plants in spring. Species self-seed.
Large-Leaved Lupine (Lupinus polyphyllus) - Pest
Common problems include Southern blight, fungal and bacterial spots, powdery mildew, downy mildew, stem rot, rust, and damping off.
Large-Leaved Lupine (Lupinus polyphyllus) - Interesting facts
Seeds can cause harsh stomach upset if ingested.
Large-Leaved Lupine (Lupinus polyphyllus) - Soil and irrigation
Does best in sandy, slightly acidic, well-draining soil.
