Lupinus densiflorus, commonly known as Whitewhorl Lupine, is an annual herb native to California’s chaparral and coastal sage scrub habitats. It typically grows to about 80 centimeters (31 inches) tall and features palmately compound leaves with 5-11 leaflets, each 1-5 centimeters (0.39-2.0 inches) long and up to 1 centimeter (0.39 inches) broad. The flowers of Whitewhorl Lupine are showy and range in color from pink to purple, with variations that can include white and yellow. They are produced in open whorls on an erect spike, creating a striking display during the flowering season.

Whitewhorl Lupine is valued for its vibrant flowers which can enhance wildflower meadows, borders, and naturalistic gardens. It is a nitrogen-fixer, enriching the soil where it grows, which can benefit other plants in the garden. This lupine is best suited for sunny locations with well-drained soils and requires only moderate watering once established. While it is relatively easy to maintain, it can be susceptible to fungal diseases if conditions are too damp. It is also important to note that many lupine species can be toxic to livestock and pets if ingested.CC BY-SA 4.0