Broadleaf lupine grows in moist, open meadows and forests, or along streams and in other wet locations in western North America. This erect, multi-stemmed perennial wildflower has broad, palmate leaves. Broadleaf lupine is highly variable, but in the Klamath-Siskiyou Mountains mature plants generally grow 2′-4′ in height. The pale purple to dark purple keeled flowers grow in tiered whorls up the stem. Broadleaf lupine is a fast-growing species that may bloom the first year of growth under ideal growing conditions. Broadleaf lupine is tolerant of a wide variety of soil types, including coarse, rocky soils, but does best in rich, yet well-drained loamy soil with regular irrigation or access to water. It will flower best in full sun; however, at low elevations it may prefer some partial shade in hot, sun-baked locations. Broadleaf lupine will bloom in late spring to early summer and will continue blooming throughout the summer with deadheading or cutting back of the flowering stalks. This species is used by a wide variety of pollinators, especially bumble bees.
Broadleaf lupine (Lupinus latifolius) seed packets contain approximately 75 seeds.
Seed Germination Instructions
No pretreatment required. Sow outside in fall to early spring.