Alphabetical Plant Listing

Lupinus nanus (Sky Lupine)

Ocean-blue Lupine, Sky Lupine, Valley Sky Lupine, Field Lupine, Douglas' Annual Lupine, Dwarf Lupine


Prized for its delicate appearance that enhances any garden, Lupinus nanus (Sky Lupine) is a low-growing annual wildflower with spikes of wonderfully fragrant, sky blue to deep royal blue, pea-shaped flowers with a white spot. Blooming in early to late spring, the blossoms are borne on short erect stems above the foliage of small, palmately compound leaves. Attractive to bees, hummingbirds, and butterflies, the flowers are followed by small pods which contain tiny brown seeds. When the pod has dried out, and it is ready, the seeds are released and expelled. This reproductive cycle leads to the rise of large colonies. Native to California, Nevada, and eastern Oregon, Sky Lupine grows abundantly in chaparral clearings and along slopes. It is frequently found with the California Poppy (Eschscholzia californica), creating striking combinations in the landscape.

  • Grows up to 6-24 in. tall (15-60 cm) and 12 in. wide (30 cm). Will self-sow.
  • Thrives in full sun in dry, well-drained soils. Provide summer water twice a month when established. Tolerates a variety of soils, including sandy and clay soils.
  • An excellent choice for informal gardens, prairies and meadows, or wildlife gardens.
  • No serious pest or disease issues.
  • Plant seeds in late fall or winter in the desired location.
  • Propagate by seed. Fresh seeds do not require pretreatment. Stored seeds may benefit from scarification or hot water.
  • All parts, particularly the seeds, may cause severe discomfort if ingested. Toxic only if eaten in large quantities. Wear gloves and wash your hands after handling.
  • Toxic to dogs, toxic to cats, toxic to horses, toxic to humans.
  • Native to California, Nevada.

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Requirements

Hardiness 4 – 10
Climate Zones 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Annuals
Plant Family Lupinus - Lupines
Exposure Full Sun
Season of Interest Spring (Early,Mid,Late)
Height 6" – 2' (15cm – 60cm)
Spread 10" – 1' (25cm – 30cm)
Spacing 12" (30cm)
Water Needs Low
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Showy
Native Plants United States, California, Pacific Northwest, Oregon, Southwest, Nevada
Attracts Birds, Butterflies, Hummingbirds
Garden Uses Beds and Borders, Ground Covers
Garden Styles Coastal Garden, Informal and Cottage, Prairie and Meadow

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Sundry Photography, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 10
Climate Zones 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Annuals
Plant Family Lupinus - Lupines
Exposure Full Sun
Season of Interest Spring (Early,Mid,Late)
Height 6" – 2' (15cm – 60cm)
Spread 10" – 1' (25cm – 30cm)
Spacing 12" (30cm)
Water Needs Low
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Showy
Native Plants United States, California, Pacific Northwest, Oregon, Southwest, Nevada
Attracts Birds, Butterflies, Hummingbirds
Garden Uses Beds and Borders, Ground Covers
Garden Styles Coastal Garden, Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Lupinus - Lupines

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