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Hairy Yerba Santa
Eriodictyon trichocalyx
  
4 Nurseries Carry This Plant

About Hairy Yerba Santa (Eriodictyon trichocalyx) 4 Nurseries Carry This Plant Eriodictyon trichocalyx is a species of flowering plant in the Boraginaceae (Forget-me-not) family known by the common name I is native to southern California and Baja California where it grows in several habitat types, including chaparral and grassland There are two recognized varieties with different ranges - var. lanatum is restricted to the Peninsular Range of San Diego County. Var. trichocalyx is restricted to the Transverse Range. It is a shrub growing erect up to about 2 meters tall, with lance-shaped to oval leaves up to 14 centimeters long. They are hairless and resinous to densely woolly. The inflorescence is a cluster of white to light purple bell-shaped flowers. A closely related species is Thick-leaf Yerba Santa (E. crassifolium) which is somewhat more common in chaparral. All members of this genus are valuable nectar plants for butterflies.yerba san. It is native to southern California and Baja California, where it grows in several habitat types, including chaparral and grassland. It is a shrub growing erect up to about 2 meters tall, with lance-shaped to oval leaves up to 14 centimeters long. The flowers of E. t. var. lanatum are white to light purple.
Plant Description
Plant Type
Plant Type
Shrub

Size
Size
3 - 7 ft tall
2 - 6 ft wide

Form
Form
Upright

Growth Rate
Growth Rate
Fast

Dormancy
Dormancy
Evergreen

Flower Color
Flower Color
White, Purple

Flowering Season
Flowering Season
Spring

Wildlife Supported
 
Insects, especially butterflies

 
Butterflies & moths hosted ( 1 confirmed , 2 likely * ) SHOW ALL
Ethmia arctostaphylella Image
Ethmia arctostaphylellaEthmia arctostaphylella
*
Archips argyrospila Image
Fruit-Tree Leafroller Moth Archips argyrospilaArchips argyrospila
*
Argyrotaenia franciscana Image
Orange Tortrix Moth Argyrotaenia franciscanaArgyrotaenia franciscana

Landscaping Information
Sun
Sun
Part Shade, Full Sun

Moisture
Moisture
Extremely Low, Very Low

Summer Irrigation
Summer Irrigation
Max 2x / month once established

Nurseries
Nurseries
Carried by 4

Cold Tolerance
Cold Tolerance
Tolerates cold to 0° F

Soil Drainage
Soil Drainage
Fast

Soil Description
Soil Description
Typically sandy or decomposed granite. Soil PH: 6.0 - 7.2

Common uses
Common uses
Bank Stabilization, Hedges, Butterfly Gardens, Bee Gardens

Companion Plants
Companion Plants
This plant is best used in arid mountain or high Desert gardens.

Trees: Joshua Tree (Yucca brevifolia), California Fan Palm (Washingtonia filifera), Blue Paloverde (Parkinsonia florida), Pinyon Pine (Pinus edulis or monophylla), California Juniper (Juniperus californica), and Yellow Pine (Pinus ponderosa)

Other Plants: Desert Willow (Chilopsis linearis),, Creosote Bush (Larrea tridentata), Ocotillo (Fouquieria splendens), Jojoba (Simmondsia chinensis), WhIte Bursage (Ambrosia dumosa), Chuparosa (Justicia californica), Barrel Cactus (Ferocactus cylindraceus), Desert Agave (Agave deserti), BrIttlebush (Encelia farinosa), Apricot Mallow (Sphaeralcea ambigua), Desert Lavendar (Condea emoryi), and various cactus species, or wIth any chaparral plantsand various cactus species, or wIth any chaparral plants

Propagation
Propagation?
For propagating by seed: Oven heat of 194°F for 5 ruins. (Went et al. 1952). Alternative treatment for Eriodictvon species: soak seeds 24 hrs. in 1000 ppm potassium gibberellate ("Gibrel" growth substance; Merck & Co., Chem. Div. Rahway, n.J.J, then sow or dry and store in refrigerator for up to 6 mos. before spring (Francis Ching, personal communication 1962).

Natural Setting
Site Type
Site Type
Slopes, mesas, ravines, grassy places in dry mountain and desert transition zone

Climate
Climate
Annual Precipitation: 3.3" - 52.5", Summer Precipitation: 0.15" - 2.94", Coldest Month: 28.0" - 59.1", Hottest Month: 49.8" - 88.4", Humidity: 1.23" - 39.10", Elevation: 52" - 11501"


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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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