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.
Pinus ponderosa
Often associated with the Sierra Nevada mountains, this majestic pine can be found in Sonoma County as well. Long, gray-green needles form bushy clusters at the ends of branches with cantaloupe-sized cones that emerge at the very tips. The bark at maturity is a colorful patchwork of orange-tan plates separated by deep grooves of dark brown. It can grow a couple of feet a year, and averages from 60 to more than 100 feet in height in a garden setting. Provide full sun to light shade with occasional deep waterings when young. Needs decent drainage. Deer resistant.
Pinus sabiniana
A distinctive pine native to chaparral areas of California’s foothills. Sometimes called ghost pine due to its long gray needles set against dark, furrowed bark. While fairly slow growing, the gray pine can reach a height of 80 ft or more in well-draining sites with ample sunlight. Native Americans prized the big, prickly cones for their large, edible seeds. Prefers full sun and requires minimal water once established
Platanus racemosa
This most Californian of trees from the southern and central parts of our state features stunning bark mottled white and grey on a large, sculptured trunk. The maple-like leaves create an open canopy on this stately tree which can reach up to around 80 ft. tall at maturity. Seeds are produced in fuzzy pom-poms dangling on short stems and are a great food source for birds. In autumn, the leaves can turn orangey-yellow before they drop, adding rare fall color to the California landscape. Makes its home in sunny, low-lying areas and canyons with moderate to occasional irrigation. A great shade tree for the large garden and a larval host for the Western tiger swallowtail butterfly. Deer resistant.
Polypodium californicum ‘Sarah Lyman’
An interesting cultivar of the California polypody fern with finely divided leaves. A wonderful addition to the shade garden where it is perfectly adapted to our dry summers. With the first coolness of autumn the fiddleheads emerge and unfurl. Energetic bright green frilly foliage thrives all winter and into spring. Goes dormant late spring or early summer where it waits out the dry season returning dependably again in the autumn. Grows 12 to 15 inches tall and slowly spreads.
Populus fremontii
Fast growing riparian tree, native to watercourses throughout California. A tall and dramatic tree, 50 - 75 feet tall, with a spreading, open crown. The leaves are shiny, triangular to heart shaped, with coarsely serrated margins and flattened petioles. Turns beautiful shades of brilliant yellow in the autumn. The wind causes the leaves to flutter and rustle, making a whispering sound. Cottonwoods can be either male or female, with the female trees producing masses of cottony seeds. When young, the bark is smooth and silver gray, becoming thick and furrowed with age. They have wide spreading surface roots and sucker sprouts. An important wildlife plant, providing food and cover for a wide array of insects and birds. This major riparian species provides rich habitat value, soil stabilization, and expansive shade. Plant in full sun with plenty of space and regular to occasional irrigation.
Potentilla gracilis
Prolific displays of bright yellow flowers resembling buttercups make this little cinquefoil a hit from spring through autumn. Flowers are held on two foot stems above low mats of dissected,dark green leaves. Native to mountainous areas throughout California. Provide full sun to light shade and give occasional to regular moisture. Will spread slowly by seed if exposed soil is nearby. A favorite of bees and butterflies. Deer resistant.
Quercus agrifolia
A beautiful and stately evergreen oak, native to many plant communities from Mendocino County south to Baja. One of the fastest growing California oaks and a versatile landscape subject as long as space allows. Young trees have a dense rounded canopy covered with thick, dark green, oval and convex leaves with spiny margins. Smooth gray bark becomes furrowed with age. Flowers are produced on short yellow hanging catkins followed by long tapered acorns. In time, develops a magnificent architecture with broad spreading branches. Planting native oaks provides beauty, shade, food and cover to a dazzling array of wildlife. Plant in sun to light shade. No additional summer water required once established.
Quercus lobata
This majestic oak once covered the Santa Rosa Valley and many other fertile valleys throughout the state. Becomes large and picturesque with long drooping branches and beautiful thick, checked bark. Best in deep soils with room to develop. Wonderful planted for wildlife. Deciduous, long lived. Oaks are some of the greatest trees for birds. Oak titmice, acorn woodpeckers, and many other species utilize them for nest sites, cover, insects and acorns.
Ranunculus occidentalis
Native to open woodlands and meadows, this buttercup often occurs under deciduous oaks and buckeyes or on edges of forests. Perennial, with basal foliage, the flower stems rise 12 to 20 inches with bright yellow shiny petals. Has been surprisingly adaptable. Does fine with moderate summer irrigation, where it stays evergreen and long blooming. Once established can be allowed to go summer dry, where it will go dormant after setting seed, and returning with the winter rains.
Ribes sanguineum v. glutinosum ‘Cal Flora White’
A Cal Flora Nursery original, a chance seedling in our nursery landscape. We watched this seedling develop into an elegant, eight foot, vase shaped shrub. The five inch pendulous racemes dangle from the branch tips and are pure white. Give flowering currants light or part shade except along the immediate coast where they grow in full sun. Moderate to occasional water once established. Hummingbird and bumblebee favorite. Birds enjoy the fruits.
Ribes sanguineum v. glutinosum ‘Claremont’
Distinctive for its extra long, pendulous racemes of pink flowers with white centers. This Rancho Santa Ana Botanic Garden selection of the pink flowering currant is particularly vigorous, featuring abundant floral displays in early spring. Will attain a height and spread of 6 - 8 ft over time. Best with light shade and a little summer water. Important early nectar source for bumblebees and hummingbirds. Berries attract many birds including grosbeak and mockingbirds.
Ribes sanguineum v. glutinosum ‘Heart’s Delight’
A coastal Marin County selection of one of the West's choicest native shrubs. Deciduous, grows 6 ft. tall or more. In early spring it produces long drooping racemes of deep rosy-pink blossoms. Best with light shade inland, humusy soil and some summer water. Hummingbirds love the flowers and the berries attract many birds including robins, grosbeak and mockingbirds.
Ribes sanguineum v. glutinosum ‘Inverness White’
Selected by Roger Raiche on Inverness Ridge in Marin County. Distinguished from other white flowering cultivars in that the pure white blossoms develop a rosy cast as they fade. Deciduous shrub about 6 ft. tall by 6 ft. wide. Best with a little shade, woodsy soil and a little summer water. Berries attract many birds including grosbeak and mockingbirds.
Ribes sanguineum v. glutinosum ‘Monte Bello’
This Cal Flora introduction was discovered in the hills west of Cupertino in the Santa Cruz Mountains. Long clusters of deep pink flowers make this selection of the pink-flowering currant stand out from other forms. In late winter and spring the flowers emerge on bare stems followed by rounded, maple-like leaves. This deciduous shrub has a vase-like shape, reaching a height of up to 10 ft. over time and a width of at least 6 ft. Provide full sun near the coast and light shade inland. Needs moderate to occasional irrigation once established. A great plant for hummingbirds and a wide array of pollinators. Birds enjoy the fruits.
Ribes sanguineum v. glutinosum ‘Tranquillon Ridge’
A Native Sons Nursery selection from Tranquillon Ridge in Santa Barbara County, found growing under a canopy of Bishop pines. Super vigorous and very large, up to 10 ft. tall with extremely long racemes of dark pink flowers in the early spring. The racemes have an appealing shape, tapering to a point at the end of their long pendant flower clusters. Best with some shade even in coastal gardens where it’s drought tolerant. Occasional deep waterings are best in hot inland areas. Berries attract many birds including grosbeak and mockingbirds.
Ribes sanguineum v. sanguineum ‘Barrie Coate’
This selection of red flowering currant is a knock out in bloom. An early bloomer often starting in February with short racemes of nodding clusters of very deep rosy-pink, nearly red blossoms. Clusters of blue-black fruits follow and are enjoyed by birds. This deciduous shrub will grow 6 foot tall by 4 foot wide. Plant in sun to light shade with afternoon shade in hot regions and moderate to occasional summer water. An excellent early source of nectar for hummingbirds.
Ribes sanguineum v. sanguineum ‘Brocklebankii’
A distinctive shrub with gorgeous golden foliage on 5 ft. tall stems. Pendulous racemes of pink flowers in early spring just as the leaves are emerging are a favorite of hummingbirds. The leaves will scorch in the hot sun so part shade is best, especially during the hottest time of day. This cultivar prefers even moisture.
Ribes sanguineum v. sanguineum ‘Elk River Red’
This selection of the red flowering currant is from the Pacific Northwest. A deciduous shrub growing 6 ft. or more tall. Early spring brings eye catching bright rosy-red blossoms in drooping clusters. A wonderful early nectar source for hummingbirds. Plant in cool sun or light shade inland with occasional to moderate summer water. Berries attract many birds including grosbeak and mockingbirds.
Ribes speciosum
One of California’s showiest gooseberry, blooming in late winter - early spring with charming bright red, pendant, fuchsia-like flowers. The thorny branches are arching and grow 4 - 6 ft. tall and wide. Best with light shade and needs no irrigation once established. Occasional summer water keeps most of the leaves green through the summer, but will go summer dormant with dry conditions. An excellent choice for under native oaks. The flowers attract hummingbirds and the spiny fruits attract many birds including grosbeak and mockingbirds. Deer resistant.
Ribes viburnifolium
Native to Santa Catalina Island, this Ribes is unique for the genus, being evergreen and low growing. Leathery, dark green, glossy leaves with a spicy fragrance on red stems forms a spreading shrubby groundcover to 2- 3 ft. tall. Small clusters of interesting, star-shaped, salmon-pink flowers decorate the arching branches in late winter to early spring, followed by little, red fruits. Requires part shade and is drought tolerant once established. Adaptable to a variety of soil types including heavy clay. Tip pruning is recommended to encourage a dense growth habit. Deer resistant.
Romneya coulteri
A much admired, spectacular, shrub-like perennial, with a long history in cultivation. Can be both finicky to get going and extremely vigorous once established. The large flowers are made up of crinkly, crape paper-like, white petals with a shaft of yellow stamens in the center, at the top of long, gray-foliaged stems. Plant where its size and spreading won't be a problem and prune severely in winter. Height 4 -8 feet. Full sun. Drought and deer tolerant.
Rosa nutkana
Named for the Nootka Sound in Alaska where it was originally described, this shrub's range runs all the way south into California. Forms prickly thickets at least 6 feet tall with light green foliage. Super fragrant, 2-3 inch single pink flowers appear in summer followed by showy red hips.Favors moist sites in full sun to light shade. Rose thickets provide excellent habitat value, offering food and cover for birds and small mammals, pollen and nectar for many beneficial insects as well as a larval food source for a number of butterflies.