Oemleria cerasiformis
A charming native shrub which grows in moist areas along the coast or when inland on forest edges. Blooms in early spring just as the new leaves are beginning to expand with drooping clusters of fragrant white flowers. Male and female plants are separate and you'll need both to get the small blue-black fruits that birds enjoy. A suckering shrub growing 5 - 6 ft. tall or more. Plant in part shade with regular to occasional water. Can grow in cool full sun such as you find along the coast.
Oenothera californica
California primrose forms low mats of gorgeous, grey foliage, up to 2 to 3 ft. across. The soft leaves, covered with dense hairs, becomes nearly hidden by large, white, sweetly fragrant flowers. The long succession of blooms pop open in early evening from drooping flower buds and last just one night, becoming pink with age. Native to sandy or gravely soils of southern California, southwestern U.S. and Baja, where it can be found in chaparral, high elevation deserts and open woodland habitats. Perfect for the dry garden with well draining soils in full sun to very light shade. The luscious flower display can last from late spring into early summer. Goes completely dormant by mid-summer, returning the next winter. Pollinated by a number of interesting moth species including the Sphinx moth.
Oxalis oregana
A natural companion of coast redwoods where it forms low carpets of clover-like foliage. Useful ground cover for the woodland garden where it competes well with tree roots and thrives in partial to deep shade. Low and spreading with spring flowers that can range from white through dark pink . Best with humus in the soil and some summer moisture, though it is drought tolerant in coastal zones. Deer resistant.
Oxalis oregana ‘Klamath Ruby’
Low spreading groundcover which thrives in the shady conditions of Douglas fir and redwood forests. The cultivar ‘Klamath Ruby’ offers dark green clover-like foliage with beautiful burgundy backed leaves. White flowers with pale pink veining on the petals bloom in the spring. A lovely groundcover for a shady garden with some summer water, though it is drought tolerant in coastal zones, once established. Deer resistant.
Oxalis oregana ‘Smith River White’
This Cal Flora selection carries white flowers with thin pink lines on the petals held up above the foliage, thus creating an effect somewhat reminiscent of our small native anemones. The foliage is handsome with dark olive green tops and purple-red undersides to the leaves. The perfect ground cover for deep to moderate shade with some summer moisture. Drought tolerant when grown in more coastal areas. Rampant when its needs are met, it competes well with tree roots and is the perfect companion to other redwood forest understory plants. Deer resistant.
Penstemon heterophyllus ‘GMR White’
An unusual, bright white form of our native foothill penstemon that dazzles with dense blooms from spring to fall. Spring sees the emergence of soft yellow buds on this evergreen perennial, which then open as snowy fresh, tubular flowers. The showy flower stalks reach 18 inches to 2 feet and look spectacular cascading out of a container. A natural selection, its name is an abbreviation of Glendora Mountain Road, the area just north of Los Angeles where it was found. As beloved by hummingbirds and pollinators as the more common blue-violet form of this species and even more shockingly floriferous. Plant in full sun to very light shade where it will have good drainage, and provide occasional to no water. Thrives in large pots. Drought tolerant.
Penstemon palmeri
Showy, grape-scented, pale pink flowers top blue-green, succulent-like foliage on vertical stalks reaching an astonishing 4 to 5 ft. in height. The bulbous flowers have given rise to the common name, ballon flower. Native to desert mountains of southern California and throughout the western United States. This penstemon is attractive to a multitude of pollinators, especially hummingbirds. Plant in full sun to light shade and provide good drainage. Drought tolerant once established. The tall but narrow flower stalks make this penstemon useful in narrow spaces where height is desired.
Perideridia gairdneri
An interesting and rarely cultivated native perennial that grows in grasslands and meadows in central to northern California and the Sierra Nevada foothills. Narrow leaves emerge in the spring giving way to lovely 4 ft. tall flowering stems topped with umbels of delicate white flowers in the summer. Looks particularly nice in mass and livens up a meadow or grassland planting that may be waning in summer. Entice the anise swallowtail butterfly with a NATIVE larval food source. Plant in full sun to light shade with a little water. Allow to go dry after flowering.
Perideridia kelloggii
An interesting and rarely cultivated native perennial that grows in grasslands and meadows in central to northern California and the Sierra Nevada foothills. Narrow leaves emerge in the spring giving way to lovely 4 ft. tall flowering stems topped with umbels of delicate white flowers in the summer. Looks particularly nice in mass and livens up a meadow or grassland planting that may be waning in summer. Entice the anise swallowtail butterfly with a NATIVE larval food source. Plant in full sun to light shade with a little water. Allow to go dry after flowering.
Petasites frigidus var. palmatus
A bold, beautiful and AGGRESSIVE creekside native, found in coastal and montane regions in California, north to Alaska, where it grows along shady creek banks. The large, almost tropical, palmate leaves spread from thick creeping rootstocks to form large colonies. Flowers before the foliage fully emerges in the spring with flat topped clusters of white to pink flowers on 1-2 ft. tall stems. Requires shade and plenty of water and is useful as a soil stabilizer. To control its spreading nature, use in containers or in contained areas. It won't spread into areas which are dry. Dies back to the ground in the winter. Flowers attractive to a wide range of beneficial insects.
Phacelia imbricata
Native to dry slopes and open woodland throughout much of California, this rarely-offered perennial phacelia thrives in heat. Creamy-white flowers form curly clusters atop stalks ranging from 1 to 3 feet. Bees and butterflies find them irresistible. The soft, dense foliage hugs the ground in an up-to-2-ft-wide mound. Plant in full sun to light shade in areas with good drainage and minimal irrigation once established. Drought tolerant.
Philadelphus lewisii ‘Covelo’
Sweetly fragrant, pure white blossoms with yellow stamens cover this desirable, deciduous native shrub in late spring, attracting bees and butterflies. Reaches to 8 ft. tall and wide with a vaguely umbrella shape. This selection is somewhat denser than 'Marjorie Schmidt', in both foliage and flower, with leaves that are less serrated. Enjoys full sun to light shade and moderate to occasional summer water. Tolerant of clay soil. Works well in a conatainer.
Philadelphus lewisii ‘Goose Creek’
This unusual selection of our native mock orange offers fully double flowers! We aren't usually fans of extra petals on our flowers, but this selection is quite appealing, with blossoms looking like fluffy snowballs held along the stems in late spring. This form was discovered near the Smith River in Del Norte County. Mock orange is a large deciduous shrub up to 8 ft tall and wide with sweetly fragrant, white flowers in late spring and early summer. Useful as a specimen or in mixed plantings. Sun to light shade, moderate to little water when established. A good container plant and clay tolerant.
Philadelphus lewisii ‘Marjorie Schmidt’
This native mock orange was selected by Roger Raiche and Ron Lutsko in Shasta County. It caught their eye while driving along Route 36 west of Red Bluff, as being larger-flowered and more floriferous than surrounding shrubs. Large deciduous shrub up to 8 ft tall and wide with fragrant white flowers in early summer. Sun to light shade, most soils, moderate to little water once established. Flowers attractive to bees and butterflies.
Phyla nodiflora
Vigorous, spreading ground cover native to California, North America and other parts of the world. It's a tough one, able to survive a wide range of conditions and soil types. Tolerates both drought and flooding, but best with occasional deep watering in full sun to very light shade. Flowers heavily over a long period with charming little heads of mauve-pink, lavender and white blossoms, delighting an assortment of bees and butterflies. This dense, carpeting plant makes a serviceable ground cover or lawn-like replacement, tolerating moderate foot traffic and occasional mowing. May look rough in the winter, but quickly recovers in spring. Free flowering and pollinator friendly.
Physocarpus capitatus
Handsome, deciduous shrub favoring wooded streamsides in California. Grows vigorously 4 - 8 ft. tall and wide. After leafing out in the spring, the shrub looks spiraea-like, covered with small clusters of white flowers followed by red capsular fruits. Best with light shade and some summer water, but will accept full sun in cooler areas. Keep bushy and in bounds with pruning.
Physocarpus capitatus ‘Tilden Park’
A rare and delightful prostrate form of the native ninebark from San Bruno Mountain. Makes a sturdy groundcover about 3 ft. tall and spreading to at least 6 ft. wide, featuring lush, bright green, maple-like leaves with white flower clusters in the spring. The blossoms give way to bright red seed pods in the summer. Sun to light shade with moderate water, but will tolerate dryish conditions in part shade once established. Clay tolerant.
Plantago maritima
From coastal bluffs up and down the California coast comes this charming little plantain. Starting in late spring and continuing through summer, small, greenish-yellow flowers flank the top of slender stems up to 6 inches tall. The dense rosettes of narrow, succulent leaves provide a striking accent in a rock garden or nestled in crevices between pavers or stones. A good container specimen. Recognized for its edible and medicinal uses. Plant in full sun to light shade. Tolerates low to regular moisture. May spread vigorously by seed.
Prunus ilicifolia ssp. ilicifolia
Hollyleaf cherry is a large, evergreen shrub that can grow more than 15 feet tall and wide, but is easily pruned to be more compact. This adaptable foothill native can be clipped into a formal hedge, pruned to be treelike, or left to its own natural gumdrop-shaped habit. Often it is used for background or screen plantings. Glossy, holly-like leaves are accompanied by showy displays of creamy-white flowers in narrow spikes from late spring to early summer. Plant in full sun to very light shade. Looks best with occasional deep waterings, but can tolerate very dry conditions once established. Although it requires good drainage, it is tolerant of heat, drought, wind and oak root fungus. An excellent habitat plant, offering food and cover for wildlife. Birds enjoy the small reddish-purple cherries. Generally deer resistant.
Prunus ilicifolia ssp. lyonii
This subspecies of our native cherry comes from Southern California and can be grown as a large shrub or trained into a small tree. The Catalina cherry is evergreen, with soft, glossy leaves and without the toothed leaf margin of our more local hollyleaf cherry. Gorgeous, creamy-white flower clusters make a showy display in spring. The purple-red fruits are edible, but are mostly preferred by wildlife. At 20-40 feet in height and slightly narrower in width, it is also larger than the hollyleaf cherry, but is prunable to 8-10 feet. Its dense foliage makes an excellent hedge. Does best in well-drained soil with occasional deep watering once established. The flowers are adored by pollinators. Robins, finches, towhees, Cedar waxwings and mockingbirds eat the cherries.
Prunus virginiana v. demissa
Large, deciduous shrub or small tree with red-purple bark and dark green foliage. Growing 8 foot or more tall and spreading slowly to form a thicket. Striking racemes of fragrant white flowers in the spring followed by dark red fruits which can be sweet but astringent. Foliage can take on nice fall color before dropping its leaves. Fabulous habitat plant drawing bees, butterflies and other pollinators to its flowers. Birds, especially bluebirds, adore the fruits and are known to swoop in and finish them off quickly. Where summers are hot, light or part shade is best, with regular to occasional water once established. They often grow where there is seasonal moisture in the spring, but somewhat dry as the season progresses.
Ptelea crenulata
This interesting California endemic deserves wider use in California gardens. Hoptree is a deciduous, large shrub/small tree, growing 6 - 15 ft. tall, in the citrus family. Native to hot, interior coast ranges and the Sierra Nevada foothills, often growing in canyons where residual moisture can be found. Glossy, green, fragrant, trifoliate leaves with panicles of small creamy-white flowers decorate the branch tips in spring. Handsome, circular, flattened, fruits which look like hop seeds, start out green and age to tan and may hold on after the leaves have fallen in the autumn. Plant in full sun to light shade with occasional, deep summer watering. The fragrant flowers are attractive to a variety of pollinators including butterflies. A larval host for the two-tailed swallowtail butterfly.
Rhododendron occidentale
A much sought after and admired native deciduous shrub found in moist places and stream banks in many plant communities throughout California. Leafs out in the spring with bright green foliage on a shrubby framework 3-6 ft. or more tall and wide. Glorious displays of fragrant azalea flowers in dense terminal clusters appear in late spring and can be pure white to pale pink often with yellow or orange markings. Needs decent light to bloom well but appreciates light shade, acid soils and regular water. Deer resistant
Rhododendron occidentale x ‘Irene Koster’
A beautiful hybrid Rhododendron involving our western azalea, introduced by a Dutch nursery in 1895. This is a deciduous shrub with massive displays of sweetly scented funnel-shaped blossoms in late spring. The large showy trusses have flower buds with dark-pink stripes that open to a light rose-pink with a splash of yellow-orange on its upper petals. Grows 6 -8 ft. tall by 4 - 6 ft. wide in part shade with regular to moderate watering. Prefers humus rich acidic soils with good drainage. The fragrant flowers attract an array of pollinators including butterflies. Deer resistant.