Alphabetical Plant Listing

Phacelia californica (California Phacelia)

California Phacelia, Rock Phacelia, California Scorpionweed


Phacelia californica (California Phacelia) is a decumbent to erect perennial boasting dense, tightly coiled clusters of pale blue to lavender flowers with long, conspicuous stamens. Resembling the tail of a scorpion, they provide pollen and nectar for native bees and other beneficial insects during an extended blooming period. The flowers provide an important nectar source for the endangered Mission blue butterfly. Blooming from early spring to late summer, they emerge from a lush rosette of ovate, generally compound leaves, 8 in. long (20 cm), adorned with prominent veins. The attractive blossoms, long blooming period, and drought tolerance of California Phacelia make it an excellent wildflower species to use in water-wise gardens, low maintenance, and naturalistic landscapes. A great plant for a dry rockery.

  • Grow up to 6-18 in. tall (15-45 cm) and 12-24 in. wide (30-60 cm).
  • Thrives in full sun to part shade in dry, well-drained soils. Do not irrigate once established. Drought tolerant once established.
  • No serious pest or disease issues.
  • An excellent choice for rock gardens, wildlife gardens or prairie gardens.
  • Native to coastal northern California and Oregon.

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Requirements

Hardiness 9 – 10
Climate Zones 7, 14, 15, 16, 17
Plant Type Perennials
Plant Family Phacelia
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Height 6" – 2' (15cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 24" (30cm – 60cm)
Water Needs Low
Maintenance Low
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, California, Pacific Northwest, Oregon
Tolerance Drought
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

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Az3, Chuck B, Flickr, 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 9 – 10
Climate Zones 7, 14, 15, 16, 17
Plant Type Perennials
Plant Family Phacelia
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Height 6" – 2' (15cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 24" (30cm – 60cm)
Water Needs Low
Maintenance Low
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, California, Pacific Northwest, Oregon
Tolerance Drought
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Phacelia

Guides with Phacelia

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