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Royal Larkspur
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Delphinium variegatum
  

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About Royal Larkspur (Delphinium variegatum) Delphinium variegatum is a species of larkspur known by the common name royal larkspur. It is endemic to California, where it grows in mountains, valley and coast in woodlands and grasslands. On the forest floor of California oak woodlands typical plant associates are Calochortus luteus, Cynoglossum grande and Calochortus amabilis. This erect wildflower may reach half a meter in maximum height. Its leaves have deep lobes which may overlap. The long petioles are hairy. The branching flower cluster holds up to 25 widely spaced flowers, which are usually bright deep blue, and occasionally lighter blue or white, depending on subspecies. The spur is between one and two centimeters long. There are three generally accepted subspecies. Two of them, ssp. kinkiense and ssp. thornei, are endemic to San Clemente Island, one of the Channel Islands of California. The former, which is sometimes called Delphinium kinkiense ssp. kinkiense, is treated as a federally listed endangered species. Although it is in fact rarer than ssp. kinkiensis, ssp. thornei does not have a federal or state listing.
Plant Description
Plant Type
Perennial herb

Max. Height
2.8 ft (0.9 m)

Flower Color
Purple

Flowering Season
Spring
Spring
Summer
Fall
Winter


Native Status
Native

Natural Setting
Site Type
Open, grassy places

Sun
Sun, Part Shade

Elevation ?
-281' - 6569'

Annual Precip. ?
8.5" - 69.9"

Summer Precip. ?
0.16" - 1.83"

Coldest Month ?
37.2° F - 57.4° F

Hottest Month ?
57.2° F - 78.2° F

Humidity ?
0.42 vpd - 26.30 vpd

Landscaping Information
Water Requirement ?
Low
Extremely Low
Very Low
Low
Moderate - High


Propagation ?
For propagating by seed: No treatment.

Common uses
Hummingbird Gardens, Bee Gardens

Nursery Availability
Rarely Available

Nurseries

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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