LUPINUS argenteus (Mountain Lupine) is a perennial plant native to western North America. Mountain Lupine is a herbaceous perennial, meaning it lives for multiple years. It belongs to the Fabaceae family, which includes legumes or pea family plants.
Mountain Lupine forms an upright plant with palmate leaves divided into several leaflets. The leaflets are typically green and may have a silvery or grayish tint, giving the plant its specific epithet "argenteus," meaning "silvery." The overall foliage has a soft and fuzzy texture. The plant produces tall flower spikes with densely packed, pea-like flowers. The flowers can vary in color, including shades of blue, purple, pink, and white. The individual flowers are arranged in dense clusters along the spike.
Mountain Lupine typically blooms in the late spring to early summer, generally between May and July. The blooming period may vary depending on the local climate and growing conditions. It provides habitat and food for various wildlife species, including bees, butterflies, and other pollinators.
Mountain Lupine thrives in full sun to partial shade. It prefers well-draining soil and can tolerate various soil types, including sandy or rocky soils. It is adapted to mountainous regions and is commonly found in meadows, open woodlands, and alpine habitats.
Mountain Lupine is usually grown from seeds. The seeds can be sown directly in the garden in the fall or early spring. Lightly scratch the soil surface before sowing the seeds, as this helps with germination. Once established, Mountain Lupine is relatively low-maintenance and does not require frequent watering. Deadheading the faded flowers can encourage prolonged blooming and prevent self-seeding.
Mountain Lupine is highly valued for its attractive flowers and silvery foliage, making it a popular choice for native plant gardens, wildflower meadows, and alpine landscapes. It adds vertical interest and vibrant colors to the landscape. Mountain Lupine is also attractive to pollinators, such as bees and butterflies, as it provides nectar and serves as a food source.
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Scientific Name: Lupinus Argenteus
Common Name: Mountain Lupine
Plant Type: Perennial
Native Range: Western North America
Habitat: Grassland, Forests
Height: 18-24 "
Spread: up to 12 "
Zone: 5 to 10
Exposure: Full Sun/ part sun
Blooming Season: Summer/Fall
Attracts: Birds, Humming birds, butterflies
Flower Shape: Pea like shape
Flower Color: Blue, Purple, Whitish
Water Requirement: Low
Soil Type: Sand, Loam, Clay
Soil pH: Acid, Alkaline, Neutral
Uses: Ground cover, Borders, Prairies and Meadows