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California Coneflower
Rudbeckia californica
  
11 Nurseries Carry This Plant

About California Coneflower (Rudbeckia californica) 11 Nurseries Carry This Plant California Coneflower, with the botanical name Rudbeckia californica, is a deciduous perennial species in the Sunflower or Aster Family (Asteraceae). It is a large showy flowering plant, that grows in seeps, meadows and wetlands, at elevations of 400-7,800 feet, in Red Fir Forest and Mountain Meadow habitats from the central Sierra Nevada and in the Klamath Mountains into into southwestern Oregon
The Klamath Coneflower, a former variety of this species named Rudbeckia californica var. intermedia and endemic to northwestern California in the Klamath Mountains, has been reclassified as the species Rudbeckia klamathensis.

California Coneflower grows from a thick rhizome, reaching 3 to 6 feet (1-2 m) tall. It has large leaves that can be up to 1 foot (30 cm) long, and are lance-shaped to oval, smooth-edged or lobed. Most of these large leaves are basal, with a few alternately arranged along the bloom stems.

The yellow flower has an inflorescence that is a usually solitary sunflower-like flower head with a base up to 2.5 inches (6 cm) wide lined with several ray florets, each of which are 0.75 to 2.5 inches (2-6 cm) long. The yellow ray florets extend outwards and then become reflexed, pointing back down along the stem. It blooms in July and August. The disc florets filling the button-shaped to conical to cylindrical center of the head are greenish yellow. The fruits are achenes tipped with a pappus of scales.
California Coneflower prefers partially shaded, cool, and seasonally to always moist garden conditions.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
6 ft tall
1 ft wide

Form
Form
Upright

Dormancy
Dormancy
Winter Deciduous

Fragrance
Fragrance
Fragrant - Pleasant

Flower Color
Flower Color
Green, Yellow

Flowering Season
Flowering Season
Summer

Wildlife Supported
 
Bees, butterflies

 
Butterflies & moths hosted ( 2 likely * ) SHOW ALL
*
Synchlora aerata Image
Wavy-Lined Emerald Synchlora aerataSynchlora aerata
*
Eupithecia miserulata Image
Common Eupithacia Eupithecia miserulataEupithecia miserulata

Landscaping Information
Sun
Sun
Part Shade

Moisture
Moisture
Low, Moderate - High,

Nurseries
Nurseries
Carried by 11

Ease of Care
Ease of Care
Very Easy

Soil Drainage
Soil Drainage
Fast

Soil Description
Soil Description
Prefers moist, but can tolerate seasonally dry. Soil PH: 6 - 7.5

Common uses
Common uses
Butterfly Gardens

Companion Plants
Companion Plants
Other wet loving plants such as Lilium pardalinum, Rhododendron occidentale, Alnus viridis

Maintenance
Maintenance
Susceptible to leaf spots (remove infected leaves) and aster yellow (remove and destroy infected plants).. Cut back after first killing frost. Remove dead heads.

Propagation
Propagation?
Propagate by seed or by cuttings in the spring.

Sunset Zones
Sunset Zones?
1, 2, 3, 4, 5, 6*, 7, 8, 9, 10, 14*, 15*, 16*, 17*, 18*, 19

Natural Setting
Site Type
Site Type
Meadows and seeps

Climate
Climate
Annual Precipitation: 13.1" - 118.7", Summer Precipitation: 0.25" - 3.34", Coldest Month: 23.6" - 52.0", Hottest Month: 47.3" - 79.3", Humidity: 1.29" - 20.17", Elevation: 15" - 9996"

Alternative Names
Botanical Names: Rudbeckia californica var. californica
Common Names: California Cone-flower California Cone Flower


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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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