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Anderson's Larkspur
Delphinium andersonii

About Anderson's Larkspur (Delphinium andersonii) Known as Anderson's larkspur, this wildflower is native to western North America where it can be found in the Great Basin and the Sierra Nevada. This is an erect perennial usually reaching about half a meter in height. It has small leaves on long petioles with the leaf blades divided into long finger-like lobes. The top of the slender stem is occupied by a cylindrical flower cluster of flowers, each flower two to four centimeters wide with a spur measuring nearly two centimeters in length. The flowers usually have sepals of a brilliant dark blue, with the lower two petals the same color and the upper two petals white. Some individuals have sepals and petals of very light purple or blue to almost white. The anthers are often yellow.
Plant Description
Plant Type
Perennial herb

Max. Height
1.6 - 3 ft (0.49 - 0.9 m)


Growth Rate

Flower Color
Purple, Blue, White

Flowering Season

Native Status

Natural Setting
Site Type
Talus, dry areas

Part Shade

Elevation ?
1232' - 9012'

Annual Precip. ?
6.5" - 107.2"

Summer Precip. ?
0.55" - 3.63"

Coldest Month ?
26.6° F - 46.3° F

Hottest Month ?
50.8° F - 66.8° F

Humidity ?
0.67 vpd - 20.55 vpd

Soil Description
Prefers sandy soils

Landscaping Information
Common uses
Hummingbird Gardens, Bee Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Anderson Larkspur

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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