Lupine Seeds - Lupinus argenteus ,SILVERLEAF LUPINE- perennial Wildflower Seeds
Lupinus argenteus is a species of lupine known by the common name silvery lupine. It is native to much of western North America from the southwestern Canadian provinces to the southwestern and mid-western ...
Scientific name: Lupinus argenteus
Higher classification: Lupinus
The silver bush lupine (Lupinus albifrons), a perennial herb that grows 3 to 5 feet tall, bears spikes of violet, pea-like flowers and pale, feathery foliage. The silver bush lupine works well in wildflower gardens, and its high pollution tolerance means it flourishes in urban areas. Parts of the plant are toxic to animals and humans. Silver bush lupine grows naturally in the mountains and along the coasts of California and Oregon. The heat-loving lupine thrives in U.S. Department of Agriculture plant hardiness zones 9 and 10.
Silver bush lupine is a drought-tolerant plant that grows well in hot, sunny areas with little rain. Give the plant about 1 inch of water per week during the seedling stage. When mature, silver bush lupines seldom need watering, as they receive much of their required water from occasional rainfall. In a prolonged drought, water the plant every four to six weeks.
Sun and Soil Requirements
The silver bush lupine thrives when grown in full sun, but it tolerates some shade. Plant it in the sunniest spot of your garden for robust growth. It also does well when planted beneath trees where it receives dappled sun for part of the day. The plant requires good drainage, and it will grow in sandy, clay or loamy soil. Water that sits on the soil's surface for days indicates poor drainage. If the soil has poor drainage, improve it by mixing in organic matter, such as compost. The silver bush lupine does not have specific pH requirements, so you don't need to adjust your soil's pH.
Fertilizers give plants the nutrients they need to develop lush foliage and large, colorful blooms. Many plants benefit from an application of fertilizer. The silver bush lupine, however, is an exception. The plant does not need fertilizer to thrive; in fact, fertilizer can actually kill it. Nodules form on the roots of the lupine, and these nodules have a symbiotic relationship with rhizobia, a bacteria in the soil. The bacteria turns nitrogen in the soil into a form the plant can use. A fertilizer application gives the plant more nitrogen than it needs.
USDA Zones: 4 - 8
Height: 40 inches
Bloom Season: Spring through summer
Environment: Full sun to partial shade
Soil Type: Well-drained, pH 5.6 - 7.5
Deer Resistant: Yes
Average Germ Time: 7 - 14 days
Light Required: Yes
Depth: Seeds must be covered thinly
Sowing Rate: 2 - 3 seeds per plant
Moisture: Keep seed moist until germination
Plant Spacing: 18 - 24 inches
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