Silvery lupine (Lupinus argenteus)

Silvery lupine

Also known as: Mount rose lupine, Silver lupine, Tailcup lupine, Bluebonnet lupine

Silvery lupine is a flowering perennial with silvery-green, palmate leaves and tall, spire-like clusters of purple to blue flowers, which emerge in late spring to summer. Thriving in well-drained soils, silvery lupine often occupies open, sunny habitats and is adept at enriching the soil with nitrogen, making it a valuable member of its ecosystem.

Scientific classification

Species

Silvery lupine (Lupinus argenteus)

Legumes, milkworts and allies

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Perennial

Lifespan

Herb

Plant Type

10 cm to 1.5 m

Plant Height

30 cm

Spread

20 - 38 ℃

Ideal Temperature

Spring, Summer

Growth Season

Images of Silvery lupine

Attributes of Silvery lupine

Growth Rate

Silvery lupine's rapid growth rate is evident in its active growth seasons of spring and summer, as it dynamically increases in height and generates multiple compound leaves. This fast-paced development encourages the proliferation of its flower spikes, a spectacular sight that is highly anticipated, underpinning its importance in horticulture. Despite a comparatively slower growth pace in other seasons, it's the active growth periods that hallmark silvery lupine's development.

Care Guide for Silvery lupine

Every week

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Silvery lupine thrives in arid habitats, exhibiting excellent drought tolerance. It prefers a balance of moisture and dryness, requiring weekly watering. An evergreen, silvery lupine flourishes in well-drained soil, indicating a need for less waterlogged conditions.

Fertilize: Silvery lupine effectively fixes nitrogen and addresses nitrogen deficiency. Iron shortage can cause chlorosis, mitigated by a micronutrient mix compost, but avoid overuse to prevent toxicity. Phosphorus deficiency hinders growth; applying phosphorus-rich fertilizer can promote better development.

Pruning: Silvery lupine thrives with early spring pruning, focusing on dead stems, spent flowers, and shaping for robust growth. This timing promotes healthy blooms and enhances air circulation, reducing disease risks. Regular maintenance ensures a vibrant, healthy silvery lupine that adds beauty to your garden.

Propagation: Silvery lupine thrives in home propagation. Use basal cuttings in spring, rooting them in a 50/50 mix of sand and compost. Spring is ideal for dividing, though care is needed to preserve the long taproot during the process.

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