Helianthella californica
Native perennial sunflower growing in chaparral and woodland communities throughout much of California. Forms clumps of dark green, lance shaped leaves under a foot tall. Blooms April through June with small, golden-yellow sunflower heads which rise above foliage 18 inches to 2 ft. tall. Plant in full sun to light shade where it will be quite drought tolerant once established. The flowers attract a wide array of pollinators and beneficial insects.
Heracleum maximum
Big, bold, native perennial 3 - 8 ft. tall, is striking in mass or as a specimen. Forms a rosette of large lobed leaves followed by stout flower stems carrying large umbels of white flowers. Thrives in rich soils with some moisture. Full sun along coast, part shade inland. As a member of the carrot family (Apiaceae) the flowers are very effective at attracting beneficial insects. Larval food source for anise swallowtail butterfly. Formerly known as Heracleum lanatum.
Hesperoyucca whipplei
Bold and dramatic architectural accent plant native to southern California coast and mountains south to Baja. Forms a dense rosette of rigid silver-blue blades, 2 foot tall by 3 - 4 foot wide. Each blade has a VERY SHARP tip and careful thought should be given to its placement to avoid injury. Plants can take 3 to 15 years to bloom with impressive stalks rising 6 foot or more above the rosette with drooping, creamy white, bell shaped, fragrant flowers. The flowering rosette dies after blooming often being replaced by vegetative offsets. Best with good drainage in full sun to light shade. No water once established. Deer resistant
Heuchera ‘Canyon Duet’
A Santa Barbara Botanic Garden selection, part of their Quartet Series of hybrids. This charming, diminutive coral bells forms low, sturdy clumps of small rounded leaves slowly spreading to about 10-12 inches wide. Bi-colored flowers of dark pink and white rise 12 to 18 inches above the dense foliage in spring and early summer. Heuchera's require good light to bloom well but resent full sun, especially inland. Moderate to occasional water. Excellent small scale perennial for mixed border, edging or rock garden. Good container subject too.
Heuchera ‘Lillian’s Pink’
An exceptional hybrid forming tidy mounds of foliage 12 - 18 inches wide. Topped with slender stems of shell pink flowers for a long period in the spring. Best with shade from the hottest sun and moderate summer water. Lovely in drifts. This species attracts hummingbirds.
Heuchera ‘Old La Rochette’
Here is a wonderful, often hard to find Heuchera hybrid. Grows into robust clumps of rounded leaves to around 1 ft. tall and 1 - 2 ft. wide. 2 ft. tall flower stalks carry hundreds of soft pink blossoms in the spring, and often intermittently through the summer. Sturdy perennial for part shade and a little summer water. This species attracts hummingbirds.
Heuchera ‘Rosada’
Listed as one of U.C. Davis Arboretum’s “All Stars”, this heuchera hybrid is tough and dependable. Forms an attractive mound of evergreen foliage 10 - 12 inches tall. A long display of tall flower stems covered with creamy-pink dainty bells begin in the spring and often continue into the summer. Best with part shade and moderate to occasional summer water. Attracts hummingbirds.
Heuchera ‘Santa Ana Cardinal’
An outstanding hybrid that is vigorous and free flowering. Compact clumps of foliage topped with 2 ft. tall flowering stems with vibrant rose-red blossoms over a long period. Plant in cool full sun to light shade with moderate to occassional summer water once established. This species attracts hummingbirds.
Heuchera ‘Wendy’
One of the prettiest hybrids from Rancho Santa Ana Botanic Gardens. Large light green leaves, branched stems about 2’ tall carry hundreds of light pink, rather plump, blossoms in spring. Sun near the coast, part shade inland. Reasonably well drained soil and moderate to little water when established. This species attracts hummingbirds.
Heuchera cylindrica
Native to the northern mountains of California, the roundleaf alumroot is distinctive for its dense clusters of white to cream-yellow flowers held on vertical stems reaching 1 to 2 ft tall. Round leaves grow in tight mounds up to 8 inches high and 2 ft wide. Combine with pink Heucheras, Iris and small ferns for an attractive woodland display. Needs part shade and decent drainage. Attracts hummingbirds. Drought tolerant.
Heuchera hirsutissima
This miniature alumroot is the perfect addition to the lightly shaded rock garden or along the edge of a path. Pinkish-white, dainty flowers sit atop short stems only about 4 inches tall in spring and summer. The little 2 inch mounds of dark green leaves slowly spread to form tiny drifts. Provide good drainage and moderate irrigation. An excellent plant for a rock crevice or container where it can be combined with Idaho fescue, Erigeron 'Olga' or leather fern. This species comes from the San Jacinto and Santa Rosa mountains of southern California.
Heuchera maxima
Native to the Channel Islands, this is one of the most adaptable and vigorous of the alum roots, forming broad evergreen mounds of bright green folilage 1 - 1 1/2 ft. high. Maroon flower stems are 3 ft. high topped with pink blushed creamy flowers that have a slight green haze. Best with part shade and a little summer water, but will tolerate full sun close to the coast. Good for use under oaks. This species attracts hummingbirds.
Heuchera micrantha
This is our common alum root which is usually seen on shady cliffs and roadbanks adjacent to forests. Easy to grow in garden situations. Forms low mounds of foliage topped with dainty white flowers on long stems. Likes moisture, but tolerates considerable drought and takes deeper shade than most Heuchera species. This species attracts hummingbirds.
Heuchera micrantha ‘Martha Roderick’
Here’s a pink flowered form of the normally white flowered native alum root. Foliage forms handsome clumps topped with slender stalks 1 - 1 1/2 ft. tall of tiny pink flowers. Excellent in woodland setting for border, slope or rock garden. Drought tolerant but best with a little water. This species attracts hummingbirds.
Hierochloe (Anthoxanthum) occidentalis
Here is an interesting and elegant grass native to coniferous forests. Broad, bright green, sweetly scented blades grow a foot or more tall. Flowering culms rise another 6 inches or so above the foliage with tight panicles of spikelets. The leaves offer a sweet, vanilla fragrance when dried. Excellent for woodland gardens, compatible with many redwood forest plants. Best with some summer water, but is drought tolerant near the coast. A larval host for the Western branded skipper butterfly. Deer resistant.
Hordeum brachyantherum
Native to a wide range of vernally wet plant communities throughout California and beyond. Once abundant throughout the Santa Rosa Valley where it could be found in grasslands, seasonal flood plains, moist meadow and open riparian areas. Forms perennial clumps with blades 6-10 inches tall, flower stalks to 30 inches are topped with narrow spikes of purple tinged upward facing bristles, looking like a small version of a classic cereal grain seedhead. Tolerant of heavy clay, alkaline or saline soils. Doesn't make a big impact standing alone, best used in mass or in a blend of other native meadow grasses where its slender flower heads make a pleasing effect. Plant in full sun with vernally wet soils. Deer resistant.
Iris chrysophylla
Native to far northern California and into western Oregon, this uncommon iris grows in fast draining soils in open forests and woodlands. A small scale iris, usually under 12 inches tall in bloom, spreads slowly from slender rhizomes. The delicate blossoms flower in the spring and can vary in color from white to cream to yellow, with a central yellow splash and prominent dark venation. Grow in sun to light shade with occasional to little watering. Visited by bees and hummingbirds. Deer resistant.
Iris douglasiana
Native to the California coast from Santa Barbara to Oregon. Grows both on the edge of coastal forests and on bluffs and prairies along the ocean. Clumps of evergreen, sword-shaped leaves increase readily and are topped with violet-purple blossoms early to mid spring. Important nectar producer for native bees. An adaptable garden subject for cool full sun to light shade. Drought tolerant once established, but occasional summer water will help keep foliage fresher. Deer resistant.
Iris douglasiana – Robust Form
We discovered this incredibly striking form of the popular Douglas iris near Tannery Gulch, outside of Occidental. The dark, evergreen leaves reach up to an astounding three feet in height, and are exceptionally broad. Even though these are grown by seed, the flowers are a dependable lavender-blue, with sprays of white and yellow, held on tall stalks reaching up to a foot above the foliage! Grows well in dappled shade in hotter areas, but can take full sun where there is coastal influence. While drought tolerant, occasional deep soaks keep them looking verdant and vigorous. Deer and gopher resistant.
Iris douglasiana ‘Canyon Snow’
A dependable and floriferous selection of the native Douglas iris, with springtime flowers that are pure white with yellow markings on the falls. Broad shiny blades are mostly evergreen and grow a foot or more tall and form compact clumps. Plant in sun to part shade, particularly in hot inland areas, with moderate to little summer water. Prefers good drainage but will grow well on clay soils provided they are mounded up. Too much summer water on heavy soils will prove fatal. Deer resistant.
Iris douglasiana ‘Pt. Reyes’
This is the classic iris seen along our coastline. A vigorous form with compact dark green leaves and a profusion of dark purple flowers, spreading to form large clumps. Beautiful when grown in a meadow of native grasses and coastal wildflowers. Prefers light shade in warmer areas and occasional water for it to look its best. Pruning the leaves down to the ground in the Fall can help the plant maintain a fresh appearance. Deer tolerant.
Iris douglasiana v. major
This rare form of the Douglas iris occurs throughout Marin County, offering a rainbow of possible flower colors, including blue-purple, mauve, creamy yellow and white, with all sorts of gradations in between. Since these are seed grown, the color will be a surprise when they bloom. The spring blossoms often have striking venation, and are held on stalks 1’ – 2’ high. Foliage clumps generally reach about a foot tall and spread to form extensive colonies of evergreen, strap like leaves. Plant in full sun in cooler areas, but provide some shade in hotter zones. Plants require little water once established, and are perhaps a little more drought and heat tolerant than the straight species. Deer and gopher resistant.
Iris fernaldii
Rarely offered in nurseries, the creamy-white to soft, buttery-yellow flowers of Iris fernaldii brighten up any dry shade to part-sun, inland garden in April. The flowers rise a foot above the evergreen, narrow, strap-like, deep-green foliage. This patch-forming Iris can be found in the more inland canyons of Northwestern California, from the Santa Cruz mountains, throughout inland Sonoma County, to Lake, Colusa, and Glenn counties. Fernald’s iris is well adapted to both extreme heat and cold, but can also perform well in full sun on the coast. Native bees and butterflies are attracted to the cheery flowers of this iris. This species prefers decent drainage and is drought tolerant and deer resistant once established.
Iris innominata
A choice iris with slender, glossy, dark-green leaves and dainty flowers in late spring. Flower color can be from brilliant yellows to shades of purple. Native to the Siskiyou Mountains in Del Norte County, California, into southern Oregon where it forms low, dense, evergreen clumps in openings of woodlands or coniferous forests. This species does better in hot, inland areas than the Douglas iris. Requires good drainage and some summer water. This Del Norte County iris has been used in hybridization programs to produce the popular Pacific Coast Hybrid Iris. Deer resistant.
Iris longipetala
Restricted to swales and moist areas in coastal grasslands from San Francisco to Monterey, this uncommon native is well worth growing. Bluish-green evergreen blades form erect clumps one foot to 20 inches tall. Early spring brings beautiful lavender-blue flowers with dark purple venation. Full sun in coastal areas, a little shade inland with regular water through the bloom period. Can go dryer once flowering is finished. Deer resistant.
Iris macrosiphon
A widespread and variable species growing throughout Northern California’s coast ranges and Sierra Nevada foothills. Our crop is grown from seed collected in western Sonoma County which has lovely lavender-blue blossoms April through May. Forms small clumps of narrow and slightly arching blades under 18 inches tall. Often found on wooded slopes, in openings or edges of forests where it will form small patches. Prefers good drainage, drought tolerant, or just a little summer moisture. Deer resistant.
Iris macrosiphon ‘Mount Madonna’
A charming little Iris discovered by Wintergreen Nursery on Mt. Madonna on our central coast. In spring, lavender flowers with deep purple veination and a splash of yellow sit atop dense, fan-like clusters of narrow, blue-green leaves. Reaches a height of about 10 inches and spreads slowly to form little clumps. Provide bright, filtered shade and low to no water once established. Will tolerate full sun in cooler areas. An excellent Iris for a rock garden which attracts bees and butterflies. Deer resistant.
Iris Pacific Coast hybrid
A diverse group bred from the native irises with wonderful coloration, patterning, flower form variation....ranging from soft pastels to mahogany, maroon and midnight purple. Evergreen foliage, about 1 to 2 ft. high. Can eventually form sizable clumps. Full sun to light shade. Often do well as an understory for oaks that needs no summer water. Drought tolerant, moderate to little water when established. Deer don’t seem to eat flowers or foliage.