Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selected by Howard Brown. One parent is believed to be C. cyaneus. Introduced in 1958.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and sun or part shade in inland sites. Selected for the garden; introduced by TpF.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. A selection from Yerba Buena Nursery. Named by Eleanor Williams and introduced in 1989.

Ceanothus dentatus is a species of shrub in the Buckthorn family (Rhamnaceae) known by the common name Sandscrub Ceanothus. It is endemic to California, where it is known only from the Central Coast and its Coast Ranges, primarily in Monterey and Santa Cruz Counties. It grows in coastal hills, bluffs, and canyons. This shrub produces a highly branched, spreading stem up to about 1.5 meters tall. The evergreen leaves are alternately arranged and often borne in clusters. Each is under 2 centimeters long, toothed along the edges, wavy and turned under along the margins to appear somewhat ruffled. They are hairy and covered in tiny hairy bumps, the upper surfaces dark shiny green and the undersides paler. The flower cluster is a small cluster of many bright blue flowers. The fruit is a lobed, crested capsule about 4 millimeters wide.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun or part shade in coastal sites, and part shade or shade in inland sites. Introduced by suncrest Nurseries.

Ceanothus divergens, commonly known as Calistoga ceanothus, is a rare evergreen shrub in the Rhamnaceae family. It is found in just a few locations in the Northern California Coast Ranges of California at altitudes of less than 500 meters. This plant has a growth habit described as ascending to erect and may attain a height of 3 ft. The plant's preferred habitat is on shrub-covered, rocky, volcanic slopes. The hermaphrodite blue or purple flowers bloom in April and May. The sub-globose fruits are five to six millimeters in diameter. This plant is rarely seen in cultivation and not often available for sale.

Ceanothus fresnensis is a species of shrub in the buckthorn family Rhamnaceae known by the common name Fresno mat. It is endemic to California, where it grows in central sections of the Sierra Nevada and its foothills. Its habitat includes dry woodland and coniferous forest. This is a flat, spreading shrub forming mats approaching 6 meters in maximum width. The stems are reddish brown and send down roots at nodes. The evergreen leaves are oppositely arranged and generally under 2 centimeters long. They are oval and have smooth edges but sometimes have a few teeth or notches at the tips. The inflorescence is a small cluster of pale to bright blue flowers. The fruit is a horned capsule about half a centimeter long. This is a flat, spreading shrub forming mats approaching 6 meters in maximum width. The stems are reddish brown and send down roots at nodes. The evergreen leaves are oppositely arranged and generally under 2 centimeters long. They are oval and have smooth edges but sometimes have a few teeth or notches at the tips. The inflorescence is a small cluster of pale to bright blue flowers. The fruit is a horned capsule about half a centimeter long.

Mt. Vision Ceanothus is one of three recognized varieties of Ceanothus gloriosus. All three varieties are rare, but var. porrectus is the most rare and has the most limited distribution, being restricted to a handful of sites in the vicinity of Pt. Reyes and Tomales Bay. This is an area that receives significant moisture from summer fog. Mt. Vision Ceanothus tends to grow in sandy places, at elevations from sea level to 1,000 feet. It is low growing, forming a mat or low mound. The evergreen leaves are oppositely arranged and up to 5 centimeters long, rounded to oval in shape. The edges are toothed, the teeth sometimes spine-tipped. The flower cluster is bright blue to purple. The fruit is a horned capsule about 4 millimeters wide. Although this plant is native to the north coast, it has been used in other coastal parts of the state if conditions similar to its native habitat can be maintained.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selected for the garden.

Ceanothus hearstiorum is a species of flowering shrub known by the common names Hearst Ranch Buckbrush and Hearst's Ceanothus. This Ceanothus is endemic to California, where it grows wild only on the hilly coastline of San Luis Obispo County. This shrub is generally wider than it is tall and often lies prostrate in a mat on the ground. The younger branches are hairy and somewhat feltlike in texture. The distinctive evergreen leaves are oval to almost rectangular and have a cupped, rippled surface. The edges are toothed with tiny hairy knobs and the shiny surface may be dotted with more knobs. The underside of the leaf is fuzzy to hairy. The flower clusters are borne on short, stout stalks and the tiny flowers are lavender to blue with prominent yellow-anthered blue stamens.

This plant prefers to be near the coast where it would have cooler temperatures and some fog. If planted inland, give afternoon shade and an occasional rinse in the summer. It is a rare plant in the wild due to its extremely limited distribution. However, it is a popular garden plant and is readily available at nurseries.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun or part shade in coastal sites, and part shade or shade in inland sites. Selected for the garden.

Ceanothus impressus var. nipomoensis is a variety of flowering shrub in the Rhamnaceae (buckthorn) family known by the common name Nipomo Mesa Ceanothus. It is one of two recognized varieties of the species C. impressus. This variety is endemic to the coast of Santa Barbara and San Luis Obispo counties where it can be found on coastal slopes and mesas. It is thickly branched with dark brown twigs and stem. The evergreen leaves are about 2 centimeters long and oval shaped, highly ridged and wrinkled and curling under along the edges. They may be gland-dotted and have grayish hairy undersides. The shrub flowers abundantly in clusters of small blue flowers. The fruit is a crested spherical capsule about 4 millimeters wide.

This is a great Ceanothus to grow in its natural range. Significant amounts of summer water will kill this plant. It needs the cool coastal climate and strong marine influence to make it through the hot season, so don't try to grow it south of Ventura County or inland areas. Prefers sun or part shade and sandy soils. Makes a great hedge.

Ceanothus incanus is a species of shrub in the buckthorn family Rhamnaceae known by the common name coast whitethorn. It is endemic to California, where it is known from the San Francisco Bay Area through the North Coast Ranges into the Klamath Mountains. This thorny shrub grows erect to approach a maximum height of 4 meters. The woody parts are gray in color and waxy and somewhat hairy in texture. The evergreen leaves are alternately arranged. They are generally oval in shape and usually smooth along the edges, but sometimes minutely toothed. The inflorescence is a panicle-like cluster of white flowers up to about 7 centimeters long. The fruit is a rough, lobed capsule about half a centimeter long containing three seeds. This thorny shrub grows erect to approach a maximum height of 4 meters. The woody parts are gray in color and waxy and somewhat hairy in texture. The evergreen leaves are alternately arranged. They are generally oval in shape and usually smooth along the edges, but sometimes minutely toothed. The inflorescence is a panicle-like cluster of white flowers up to about 7 centimeters long. The fruit is a rough, lobed capsule about half a centimeter long containing three seeds.

Deer brush (Ceanothus integerrimus) is a woody shrub in the Rhamnaceae (Buckthorn) family native to the western United States, including Arizona, New Mexico, California, Oregon, and Washington. It grows in a wide range of habitats, from chaparral mountain shrub regions to hardwood forests and fir, spruce, and Ponderosa Pine communities, with the most abundance in California's chaparral. The species shows significant variability in form across its range. In some areas, it is a deciduous shrub 1-4 meters tall with an open, ascending to erect branching habit. In others, it is evergreen or semi-deciduous and decumbent. There are two recognized varieties, with overlapping ranges reflecting the species' adaptability.

Deer brush is a drought-adapted shrub that fixes nitrogen through root nodules formed by actinomycete bacteria. It produces fragrant flowers, typically white, though they may occasionally be shades of blue. While it can be tricky to grow in the garden, especially without providing the right conditions, it thrives best in mountain gardens and is particularly suited to growing in the shade of conifers or oaks. The shrub is browsed by wildlife, especially deer.

Ceanothus integerrimus (Deer Brush) is a woody shrub in the family Rhamnaceae, native to the western United States, in Arizona, New Mexico, California, Oregon, and Washington. It grows in chaparral mountain shrub regions, in hardwood forests of the west, and in fir, spruce, and Ponderosa Pine communities, being most abundant in chaparral in California , . It is a deciduous shrub from 1-4 meter tall with an open ascending to erect branch habit . It is a drought-tolerant phanerophyte. Nitrogen fixing actinomycete bacteria form root nodules on Ceanothus roots , .

Deer brush (Ceanothus integerrimus var. macrothyrsus) is a woody shrub in the Rhamnaceae or Buckthorn family. It is one of two varieties of deer brush, an unusual ceanothus that may be deciduous in winter.  The color of the flowers varies from white to blue or even pink. Its natural habitat is mixed conifer forest at 2,000 feet elevation,  primarily in California, including the Klamath Ranges, North Coast Ranges, Cascade Range, Sierra Nevada, Transverse Ranges, Peninsular Ranges, South Coast Ranges, San Francisco Bay and Modoc Plateau.

Deer brush performs best at high elevations and is particularly suited to growing in the shade of conifers or oaks. It is drought-adapted and prefers fast draining soil.  

Deer brush is browsed by wildlife, especially deer, and attracts butterflies, moths and other pollinators.

Ceanothus jepsonii is a species of shrub in the buckthorn family Rhamnaceae known by the common names musk brush and Jepson ceanothus. It is endemic to California, where it grows in dry, shrubby habitat in the San Francisco Bay Area and the Coast Ranges to the north, often on serpentine soils. This species of shrub is variable, particularly across its two Varieties: Ceanothus jepsonii var. jepsonii is a spreading plant growing up to about half a meter tall. It bears flower clusters of blue or purple flowers and spherical fruits. var. albiflorus is a white-flowered variety approaching a meter in maximum height. Its fruits are more oblong. Both varieties have firm, toothed evergreen leaves oppositely arranged, curved, and with their edges turned under. The flowers tend to have a musky odor.

Ceanothus lemmonii is a species of shrub in the buckthorn family Rhamnaceae known by the common name Lemmon's ceanothus. It is endemic to California, where it grows on the wooded slopes of the Inner North Coast Ranges and the Sierra Nevada foothills to the west and east, respectively, of the Sacramento Valley. This is a spreading shrub approaching a meter in height and slightly more in width. The woody parts are gray when aged and new twigs are green, hairy, and sometimes hairy. The evergreen leaves are alternately arranged. Each is oval in shape and dull green, densely hairy on the underside and more thinly hairy on the upper surface, and the edge is lined with tiny hairy teeth. The abundant flower clusters are clusters of pale to bright blue or purple flowers. The fruit is a smooth capsule a few millimeters long.

Ceanothus maritimus is a rare, narrow endemic species of shrub in the Buckthorn family (Rhamnaceae) known by the common name Maritime Ceanothus. It is endemic to San Luis Obispo County, California, where it is known from only a few occurrences in the vicinity of Hearst Ranch. It shares the same range as the similarly rare Ceanothus hearstiorum, growing on the coastal bluffs.

This species looks unlike other Ceanothus and is said to resemble the non-native Cotoneaster. This is a spreading or ascending shrub under a meter in height with reddish gray bark aging to gray. The firm evergreen leaves are oppositely arranged, each oval or oblong in shape with a pointed, flat, or notched tip. Its short leaves are shiny green on top and woolly underneath, with their edges curled under and sometimes toothed.

The flower cluster is a small cluster of deep blue to off-white flowers. The fruit is a capsule, generally rounded with tiny horns on top. This is an attractive, adaptable, long-lived plant that is great for central coastal gardens.

Tolerates almost any soil type. Prefers sun in coastal sites, and part shade in inland sites. Selected for the garden.

Horticultural selection from Ceanothus maritimus. Frosty Dawn California Lilac, also known as Maritime ceanothus, is a small, evergreen groundcover 2'-3' x 5'-6'. Its low, compact and creeping habit make this an excellent choice for coastal gardens. Like it's parent, Frosty Dawn is slow growing but long lived, try planting Frosty Dawn Ceanothus on hills, mixed in with boulders, or in a border that has plants that also prefer low water. Leaves are greyish green above, nearly white with wool beneath. It produces dense clusters of lavender-blue flowers in spring, even as early as December. Provide additional water and protection from afternoon sun inland.

Horticultural selection C. maritimus; intro David Fross, Native sons Nursery Tolerates almost any soil type. Prefers sun in coastal sites, and part shade in inland sites. Selected from cuttings collected by Austin Griffiths and David Fross south of Arroyo de la Cruz in 1985.

Horticultural selection from Ceanothus maritimus. Point sierra California Lilac is a selection of maritime Ceanothus from just north of Arroyo de la Cruz. It is a small scale groundcover evergreen shrub, growing 1-3'high x 4-6'wide. We love Ceanothus maritimus and chose to grow this Point sierra selection due to it's increased tolerance of inland heat. Nonetheless, we recommend some light shade for hot interior gardens. Lavender blue flowers appear in early spring. This plant will grow in heavy soils and is great wildlife plant for butterflies, pollinators and birds.

Plant as a small-scale groundcover, as an accent in a dry border, or as a highlight in a rock garden. Trails over walls or rocks wonderfully. Maritime ceanothus adapts to many soil types, it will even grow in heavy soils as long as they are well drained. This groundcover ceanothus is slow-growing but long-lived. Tolerates almost any soil type. Prefers sun in coastal sites, and part shade in inland sites. Selected from cuttings collected south of Arroyo de la Cruz by Austin Griffiths and David Fross in 1985.

Horticultural selection from Ceanothus maritimus. Tolerates almost any soil type. Prefers sun in coastal sites, and part shade in inland sites. A selection for the garden. Introduced by UC Davis.

Tolerates almost any soil type. Prefers sun in coastal sites, and part shade in inland sites. Selected for the garden.

Horticultural selection from Ceanothus maritimus. Tolerates almost any soil type. Prefers sun in coastal sites, and sun or part shade in inland sites. Selected for the garden.

Ceanothus megacarpus is a species of flowering shrub known by the common name bigpod ceanothus. This Ceanothus is endemic to California, where its distribution extends along the Central Coast and includes the Channel Islands. This shrub may exceed 3 meters in height and is covered in thick oval to nearly rectangular evergreen leaves. The flower clusters are small and sparse and are filled with small white to pale lavender flowers with dark centers. The fruit is a bumpy spherical red-green capsule about a centimeter wide. The inside of the capsule is divided into 3 valves, each valve holding a seed. The capsule dehisces neatly in two at the central band to release the seeds.

Ceanothus otayensis, the Otay Mountain Buckbrush or Otay Mountain lilac, is a plant species known only from the Otay and San Miguel Mountains of San Diego County, California, and in nearby Baja California, Mexico. It occurs on dry slopes and brushlands at elevations of 600-1100 m. Ceanothus otayensis is a shrub up to 120 cm tall, erect, not rooting at the nodes. Leaves are opposite, evergreen, broadly ovate, up to 15 mm long. Flowers are white to pale blue, borne in a spike of umbels. Fruits are spherical, about 5 mm across.

Ceanothus parryi is a species of shrub in the buckthorn family Rhamnaceae known by the common name Parry ceanothus. It is native to Oregon and northern California, where it grows in the canyons of coastal mountain ranges. It is an erect shrub approaching 5 meters in maximum height. The woody parts are reddish brown and woolly when new, darkening with age and shedding most of the hairs. The evergreen leaves are alternately arranged, oval in shape and edged with hairy teeth. They are dark green and hairless on the upper surfaces, paler and woolly on the undersides. The flower cluster is a long cluster of deep blue flowers, up to about 15 centimeters long. The fruit is a smooth, 3-lobed capsule a few millimeters long.

Ceanothus parvifolius is a species of shrub in the buckthorn family Rhamnaceae known by the common name littleleaf ceanothus. It is endemic to the High Sierra Nevada of California, where it grows in moist areas in the forest. This is a spreading shrub, growing to a maximum height of just over a meter, forming a wide bush. The woody parts are reddish in color and hairless. The leaves are alternately arranged and deciduous. They are less than 2 centimeters long, mainly oval in shape and smooth-edged, sometimes with a few tiny teeth near the tip. The plentiful flower clusters are clusters several centimeters long of flowers in shades of very pale to deep blue. The fruit is a 3-lobed smooth capsule a few millimeters long.

Ceanothus prostratus is a species of shrub in the Buckthorn family (Rhamnaceae) known by the common names prostrate ceanothus and mahala mat. It is native to the Pacific Northwest of the United States, into northern California and Nevada, where it grows in coniferous forest and open plateau. This is a flat, mat-forming shrub growing 6 inches tall up to about 8 ft. wide. The evergreen leaves are oppositely arranged, oval in shape with several large, sharp teeth along the edges. The upper surface is green and hairless, and the underside is paler in color and feltlike in texture. The flower cluster is a small cluster of deep blue or purple flowers. The fruit is a wrinkled capsule one half to one centimeter long.

Ceanothus prostratus grows in the understory of mixed conifer forests, from foothills to subalpine areas. It also inhabits open flats and ridges in areas of low chaparral as well as dry interior forest ecosystems. It can be found from elevations ranging between 1,000 and 9,000 ft. It is notoriously difficult to grow due to unknown factors.

Large Leaved Mahala Mat (Ceanothus prostratus var. laxus) is a native shrub that grows in central and northern California.

Ceanothus pumilus is a species of shrub in the buckthorn family Rhamnaceae known by the common names dwarf ceanothus and Siskiyou mat. It is native to the mountains of southern Oregon and northern California, where it grows in habitat such as coniferous forest and chaparral, often on serpentine soils. This is a low-lying to flat shrub taking the form of a mat or bramble up to about 2.5 meters wide. The tiny evergreen leaves are oppositely arranged, each just over a centimeter in maximum length. They are firm and ribbed, flat or cupped, hairless on top and generally hairy and paler in color on the undersides. The flower cluster is a small cluster of flowers in shades of blue, lavender, or white. The fruit is a horned capsule about half a centimeter long.

Ceanothus purpureus, with the common name Hollyleaf ceanothus, is a species of shrub in the buckthorn family Rhamnaceae. It is endemic to northern California, where it is known only from the Inner North Coast Ranges north of the Bay Area, mainly in Sonoma and Napa Counties. The largest remaining population of this shrub occurs on Mt. George near Napa, where it is protected in a botanical preserve. The Ceanothus purpureus plant grows in woodland and chaparral habitat. It is spreading or erect in form, approaching 2 meters in maximum height. The woody parts are gray to reddish brown in color. The evergreen leaves are oppositely arranged and up to about 2. 5 centimeters long. They are round to oval, wavy, and edged with spiny teeth, resembling the leaf of holly. The inflorescence is a small cluster of blue or purple flowers. The fruit is a horned capsule about half a centimeter long.

Ceanothus roderickii is a rare species of shrub in the buckthorn family Rhamnaceae known by the common name Pine Hill ceanothus. It is endemic to western El Dorado County, California, where it grows in the chaparral and woodlands of the Sierra Nevada foothills, such as the Pine Hill Ecological Reserve. It is named after 20th century California flora explorer, botanist, and arboretum director Wayne Roderick. This rare shrub is up to about 3 meters wide and flat, forming low brambles or mats. The grayish brown stems root at nodes as they grow horizontally along the ground. The tiny evergreen leaves are oppositely arranged. Each is only about a centimeter long, widely lance-shaped and smooth along the edges or sometimes toothed near the tip. The top surface is green and hairless and the underside is somewhat woolly. The inflorescence is a small cluster of white to pale blue flowers. The fruit is a capsule about half a centimeter long, sometimes bearing small horns on top. Habitat. Ceanothus roderickii is found almost exclusively on soils of gabbro origin in the Pine Hill Geological Formation. It is a federally listed endangered species. This endangered plant was first collected in 1956 near Shingle Springs. It is threatened by several factors, including suppression of the wildfire it requires for reproduction, off-road vehicles, road maintenance and construction, and development. There are ten to twenty remaining occurrences.

Ceanothus spinosus is a species in the Rhamnaceae (Buckthorn) family known by the common names greenbark ceanothus and redheart. It is native to the coastal strip of southern California south of San Luis Obispo County to northern Baja California, where it grows in the scrub and chaparral of the coastal mountain ranges. This is a large treelike shrub approaching six meters in maximum height. The stem is a rough-barked trunk near the base and has thorny, greenish-brown branches. The thick, firm evergreen leaves are up to 4 or 5 centimeters long and are hairless on the upper surface but sometimes lined with hairs underneath. The shrub blooms in flower clusters up to 15 centimeters long filled with clusters of white to pale blue flowers. The fruit is a smooth, round capsule about half a centimeter wide containing 3 seeds.

Carmel ceanothus (Ceanothus thyrsiflorus var. griseu) is a flowering shrub available in many named cultivars. In winter to spring its evergreen leaves are densely covered with small blue or purple flowers. This native plant is endemic to coastal California. It grows in the chaparral, coastal scrub, and closed-cone-pine forest plant communities.

The flowers become food sources for larvae of some butterfly and moth species, bees, and other beneficial insects. 

Carmel ceanothus is the most popular ceanothus for California garden. Gardeners find it easy to grow and fast-growing. It will take a wide range of soils and can tolerate summer water up to twice a week.

Take care with pruning and do not prune heavily. You should not cut back into old wood. Instead, promote new shoots by pruning the tip of stems where growth is active. Also, you can trim off dead branches on the interior of the shrub to improve its shape and attractiveness. 

Cultivars of Carmel ceanothus have variable leaf and flower colors and grow to different heights and widths.  Calscape features:

Diamond heights mountain lilac (Ceanothus thyrsiflorus var. griseus 'Diamond Heights') 

Kurt Zadnik Carmel ceanothus (Ceanothus thyrsiflorus var. griseus 'Kurt Zadnik') 

Louis Edmunds Carmel ceanothus (Ceanothus thyrsiflorus var. griseus 'Louis Edmunds') 

Point Sal Carmel creeper (Ceanothus thyrsiflorus var. griseus 'Point Sal') 

Santa Ana Carmel ceanothus (Ceanothus thyrsiflorus var. griseus 'Santa Ana') 

Yankee Point Carmel Ceanothus (Ceanothus thyrsiflorus var. griseus 'Yankee Point') 

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Garden selection. This species previously known as Ceanothus griseus var. horizontalis.

Horticultural selection from Ceanothus thyrsiflorus var. griseus. In the mainstream horticultural trade continues to use the older name for, which is Ceanothus griseus var. horizontalis This unusual low growing Ceanothus hybrid will definitely appeal to those who are attracted to variegated foliage. A bright low-growing shrub with chartreuse leaves splashed with dark green. Foliage is brightest in warm weather and full sun, and will be greener in winter or if heavily shaded. Remove any stems with solid green leaves that periodically develop.This ceanothus is fast growing to 1' tall and 4' to 6' wide, with light blue flowers appearing in spring. We recommend placing in full sun on the coast and shade or part shade inland. It is an excellent choice for containers, along a shady border or spilling over a wall. Diamond Heights Ceanothus is suitable for planting in the dry shade beneath native oaks and combines well with Blue-eyed grass and Coffeeberry. Frost hardy to 2 degrees F, and drought tolerant once established.

This was a sport selected by Barry Lehrman in 1985 from a planting of Carmel Creeper (Ceanothus griseus var. horizontalis), that was found in the Diamond Heights neighborhood on Mount Davidson, in the center of san Francisco Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selected by Barry Lehrman in 1985 from the Mount Davidson area of san Francisco and named for the housing development where it was found.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and sun or part shade in inland sites. Selected by Roger Raiche in 1986 from sonoma Co. coast; introduced in 1991.

Louis Edmunds Carmel Ceanothus is a mounding shrub ground cover, reaching 3-6 ft. tall by 12-25 ft. wide. It has dark green glossy textured foliage, and produces violet-blue flowers in the springtime. The plant can grow in full sun in coastal sites, and in some sun to part shade in inland sites. In cultivation it is tolerant of clay, alkalinity, sand, wind and heat, and depending on local climate and soil can be tolerant of some irrigation.
Ceanothus thyrsiflorus var. griseus 'Louis Edmunds' is planted as a large scale groundcover where it has room to spread, and for slope stabilization and erosion control.

This cultivar was selected in 1942 by nurseryman Louis L. Edmunds, who later operated the Louis Edmunds Native Plant Nursery in Danville, from a seedling he propagated and selected at Tilden Botanic Garden (Regional Parks Botanic Garden) in the Berkeley Hills. Ceanothus thyrsiflorus var. griseus 'Louis Edmunds' was given an Award of Merit in 1956 by the California Horticultural Society.

Tolerates almost any soil type. Prefers sun in coastal sites, and part shade in inland sites. Selected for the garden by Carol Bornstein.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selected by Louis Edmunds near point Arena in 1949.

Horticultural selection of cuttings of Ceanothus griseus horizontalis from Yankee Point on the central California coast just south of Carmel. This is one of the most commonly used California native plants. Yankee Point is a very garden tolerant spreading groundcover, with glossy green leaves and 1' blue flowers. On the coast, it will take wind and salt spray, and it will do equally well inland. It is often used as a large-scale groundcover and will stabilize slopes nicely. It reaches 2'-3' in height and spreads to 6'+. Horticultural selection E. griseus horizontalis: origin = cutting (1954) sHF, Yankee Pt., central coast, Monterey Co.; intro saratoga Hort. Foundation 1956 .Tolerates almost any soil type. Prefers sun in coastal sites, and sun or part shade in inland sites. Selection developed by Maunsell Van Rensselaer in 1954. Species previously known as C. griseus var. horizontalis.

Creeping Blueblossom (Ceanothus thyrsiflorus var. thyrsoflorus) is a the low growing form and variety of the native shrub and tree Ceanothus thyrsiflorus. It native range is coastal central and northern California, extending from northern Santa Barbara County to near the Oregon border, growing 1- 5 miles from the shore. The other variety of this species, Ceanothus thyrsiflorus var. griseus (Carmel Ceanothus) is much more variable in form and is native to habitats closer to the coast.
Creeping Blueblossom was previously classified as Ceanothus thyrsiflorus var. repens.

Creeping Blueblossom has profuse attractive sky blue flowers and makes an excellent ground cover plant. It prefers full sun to part shade in cooler coastal environments, and part shade to full shade in hotter and drier inland environments. It tolerates occasional light summer water, but is quite drought tolerant. It grows well in many different soil types, from clay to sand, and can tolerate poorly draining and fast draining conditions.

Cultivars in the nursery trade include:
Ceanothus thyrsiflorus var. thyrsiflorus 'Taylor's Blue' (Taylors Blue Ceanothus). This is a shrub ground cover growing 2-3 feet tall by 10-15 feet wide. It was introduced in the 1950s as Ceanothus thyrsiflorus 'Louis Edmunds' by the Saratoga Horticultural Foundation, from a plant in nurseryman Ken Taylor's natives garden in Aromas, originally from the garden of nurseryman Louis L. Edmunds. It was previously named and is sometimes still sold as C. t. var. repens 'Taylor's Blue'.
Ceanothus thyrsiflorus var. thyrsiflorus 'Louis Edmunds' (Louis Edmunds Blue Blossom). This is a prostrate ground cover growing 6 inches tall by 6 to 8 feet wide, and is the lowest cultivated form of C. t. var. thyrsiflorus. It introduced by Rancho Santa Ana Botanic Garden (California Botanic Garden) in 1958 as Ceanothus griseus 'Louis Edmunds' from a plant given them by Louis L. Edmunds, who operated the Louis Edmunds Native Plant Nursery in Danville.
This is not the same plant as the cultivar Ceanothus thyrsiflorus var. griseus 'Louis Edmunds' (Louis Edmunds Carmel Ceanothus) nor the formerly named Ceanothus thyrsiflorus 'Louis Edmunds' (currently C. t. var. thyrsiflorus 'Taylors Blue').

Cephalanthus occidentalis is a species of flowering plant in the coffee family, Rubiaceae, that is native to the Central Valley in California, and to eastern and southern North America. Common names include Buttonbush, Common Buttonbush, Button-willow and Honey-bells. C. occidentalis is a deciduous shrub or small tree that averages 1-3 meter (3.3-9.8 feet) in height, but can reach 6 meter (20 feet). The leaves are opposite or in whorls of three, elliptic to ovate, 7-18 centimeter (2.8-7.1 inches) long and 4-10 meter (13-33 feet) broad, with a smooth edge and a short petiole. The flowers are arranged in a dense spherical flower cluster 2-3.5 centimeter (0.79-1.4 inches) in diameter on a short peduncle. Each flower has a fused white to pale yellow four-lobed corolla forming a long slender tube connecting to the sepals. The stigma protrudes slightly from the corolla. The fruit is a spherical cluster of achenes (nutlets).

This plant is easy to grow as long as it's planted near a stream or water source. Often used in wetland revegation project in the Central Valley.

The Western Redbud (Cercis occidentalis) is a small deciduous tree or shrub found in the foothills and mountains of California. In the northern, rainier part of its range, it grows more often on dry slopes in mountain foothills. In the southern and drier part of its range, it grows most often near near higher-elevation creeks, canyon bottoms and other moister areas.

The thin, shiny brown branches bear shiny heart-shaped leaves which are light green early in the season and darken as they age. Leaves on plants at higher elevation may turn gold or red as the weather cools. The showy flowers develop in the spring and are bright pink or magenta, and grow in clusters all over the shrub, making the plant very colorful and noticeable in the landscape. The shrub bears 3-inch-long brown legume pods which are very thin and dry. The flowers that are popular with a variety of native bees, including leafcutter bees.

This plant is easy to grow just about anywhere in northern California that doesn't get below 15 degrees. In southern California, best to plant Western Redbuds near seasonal streams, springs, damp areas or irrigated areas. To thrive, this plant needs a four-season climate with a cool winter, so best not to plant near the immediate coast in Southern California. Redbud

Mountain Mahogany (Cercocarpus betuloides var. betuloides) is a native tree or shrub that grows in northern, southern and central California. It tends to grow at elevations from 0-8200 feet.

This Mountain Mahogany is similar to Cercocarpus betuloides, but the leaves are larger and it is more garden tolerant. A bush-tree that looks like a compact evergreen birch. Because of its narrow habit it is an excellent screen or large border shrub. These plants have survived hot and cold for nine years here with no water and no care.

Cercocarpus traskiae, known by the common names Santa Catalina Island mountain-mahogany and Catalina mahogany, is a rare species of plant in the rose family. It is endemic to Catalina Island, one of the southern Channel Islands in Los Angeles County, ]]California]]. It is known from just a single population. It was rare when it was first discovered in 1897 or 1898, when about 40 to 50 plants were counted. When it was federally listed as an endangered species in 1996 there were only six mature plants remaining. It has been called "one of the rarest shrubs in the continental United States" and "one of the rarest trees in North America. " in Wild Boar Gully, an arroyo covered in coastal sage scrub on Catalina. The steep sides of the arroyo contain soils of saussurite gabbro. Cercocarpus traskiae is a large shrub or tree that grows up to 8 meters in height. The leaves have thick, leathery oval blades with serrated edges and woolly-haired undersides. The leathery, woolly texture of the leaves distinguishes it from other Cercocarpus. The inflorescence is a cluster of up to 10 flowers which do not have petals. Plants do not always flower each year. While there are sometimes many seedlings noted, the seedling survival rate and rate of recruitment are quite low. As of 2007, there are only seven adult trees capable of reproduction, all located in Wild Boar Gully, and most of these are very old. The Catalina Island mountain mahogany is threatened by ungulates such as deer, and feral goats and pigs. The goats have been removed from the island, and fencing has been placed to prevent the remaining animals from touching the plants. This rare species hybridizes with its relative, Cercocarpus betuloides, a situation that may lead to genetic swamping of the rare plant. This hybridization may be made more likely by the animals' disturbance of the habitat. Many of the seedlings and saplings growing today may be hybrids. The population of pure Cercocarpus traskiae is not increasing and the species is entirely dependent on human intervention today.

Chaenactis artemisiifolia is a species in the Asteraceae (Sunflower) family known by the common name White Pincushion. It is native from the coast to the coastal mountain ranges of southern California and Baja California. This is a robust annual herb producing an erect stem occasionally as tall as two meters but usually under one meter in height. There is a basal rosette of leaves and sparse leaves along the stem. The leaves are up to about 15 centimeters or more in length and they are divided into many lobes which are further subdivided into smaller, lacy lobes. The leaves and stem are lightly woolly; older plants have thinner coats of hair. The stem branches about midway up and bears several flower heads in a wide open flower cluster. Each head is a hairy hemispheric cup of sharp-tipped phyllaries which can be up to a centimeter long. The flower heads are discoid, containing only disc florets, but some of them are flat enough to resemble ray florets or petals. The florets are white to pink. The anthers and curly styles protrude far from each floret, making the flower head look like a pincushion. The fruit is a compressed achene about half a centimeter long with no pappus. This species is not frequently seen in gardens but is useful for restoration projects.

The desert willow is a small, multi-trunk tree that's notable for its fragrant, trumpet-shaped flowers that bloom in shades of pink, lavender, and white. The flowers attract pollinators, including hummingbirds, bees, and butterflies. Narrow leaves give this plant its name, but it is a member of the bignonia family, not a willow. It produces long seed pods and is winter deciduous.

The desert willow is native to southern California's desert regions and is a good choice for inland gardens. Plant in full sun and sandy soil. The desert willow needs minimal supplemental water but can enjoy some summer irrigation. Prune when the branches are bare in winter.

Horticultural selection from Chilopsis linearis. This Desert Willow has gorgeous pink to deep red flowers that bloom in the summer. It is tolerant of most soils but does well in sandy soils. It is found naturally in desert like areas so it doesn't need a lot of water. The flowers are fragrant and it makes a great addition to a hummingbird garden especially because of the beauty of the flowers.

Horticultural selection from Chilopsis linearis.

Horticultural selection from Chilopsis linearis. Desert willows have long narrow leaves and produce an abundance of fragrant flowers from late spring and continue to early fall. The flowers from the tree are favorites with hummingbirds and other pollinators. This deciduous tree is easy and fast-growing. It is naturally a multi-trunk tree but can be pruned to a single trunk. Use it for summer shade in a dry garden where its dramatic blooms will draw plenty of attention. 'Maggie's Pink' Desert Willow has vibrant pink flowers that are a deeper shade of pink than the species and lighter than the variety known as 'Burgundy'. This tree is named in honor of Maggie Olsen, long-time assistant to Greg Rubin of California's Own Native Landscape Design. She is known for her dependability and cheerful demeanor, just like this attractive small tree! ' Maggie's Pink' is tolerant of most soils but does well in sandy soils. It is found naturally in desert areas near watercourses and takes moderate water. Height ranges from 15' to 25' with a width of about 1' to 15'. Horticultural selection Greg Rubin. Introduced by Moosa Creek Nursery 216 .

Long Flowered Rabbitbrush (Chrysothamnus depressus) is a native shrub that grows in Southern California, primarily in the Desert Mountains and Mojave Desert regions. It tends to grow in rocky crevices, at elevations from 3300-6900 feet.

Chrysothamnus greenei called Greene' rabbitbrush , is a North American species of flowering plants in the aster tribe within the sunflower family. It has been found in eastern California (Mono + Inyo Counties), Nevada, Arizona, New Mexico, Utah, Colorado, and southern Wyoming (Sweetwater County). Chrysothamnus greenei is a branching shrub up to 50 cm (20 inches) tall with gray bark. It has many small, yellow flower heads clumped into dense arrays. The species grows in sandy locations in desert regions.