Lupinus truncatus - Collared Annual Lupine
Lupinus truncatus is a small Lupine easily grown in the garden. The Collared Annual Lupine grows to a foot when conditions are good. Lupinus truncatus is noted for the truncated leaves. The flowers of Lupinus truncatus fade from blue to purple after they are pollinated. Lupinus truncatus grows through the coast ranges south of the Bay area into Baja. Fragrant flowers of Lupinus truncatus are produced from Winter into Spring. Wildflowers that require no supplimental water are a great way to expand the reach of the Drought Tolerant Garden. It is best to spread seed with the first significant rains in the Fall. Lupinus truncatus is a nectar source for the Orange Sulphur Butterfly and deserves a place in the butterfly garden.
Plant pages from the genus Lupinus featured on this site:
Lupinus albifrons * Silver Lupine
Lupinus arizonicus * Arizone Lupine
Lupinus bicolor * Miniature Lupine
Lupinus chamissonis * Dune Bush Lupine
Lupinus exubitus * Grape Soda Lupine
Lupinus grayi * Sierra Lupine
Lupinus hirsutissimus * Stinging Lupine
Lupinus microcarpus densiflorus * Chick Lupine
Lupinus stiversii * Harlequin Lupine
Lupinus succulentus * Succulent Lupine, Arroyo Lupine
Lupinus truncatus * Collared Annual Lupine