Rudbeckia nitida is a tall, luminous coneflower that trades the coarse hairiness of the common black-eyed Susans for smooth, glossy, dark green leaves and hairless stems, the shining foliage that gives the species a name. From a leafy base rise slender stems three to five feet tall, each carrying a large yellow daisy whose soft rays droop back from a raised, greenish-brown central cone, blooming through the heat of mid to late summer.
Ruellia caroliniensis, the Carolina wild petunia, is a modest, long-blooming native that carries far more ecological weight than the quiet flowers suggest. From early summer into fall, a steady succession of lavender to violet-purple trumpets, each an inch or two across and lasting only a single day, opens along upright stems a foot or two high, replaced faithfully the next morning so that the plant is seldom out of bloom for months on end.
Ruellia coccinea belongs to the acanthus family and comes from the Caribbean, native to Puerto Rico and the Virgin Islands, where the plant grows as a scarlet-flowered subshrub in warm, humid woodland. The Spanish common name, Yerba Maravilla, reads roughly as marvel herb, a fitting nod to the near-constant show. Through the whole of summer R. coccinea produces slender tubular flowers about an inch long, each opening into five spreading scarlet lobes, borne in clusters from the upper leaf axils and unfurling in succession from early summer until the first frost.
Sabal mexicana, the Texas Palmetto, is a large, robust fan palm once known as Sabal texana. In the United States the palm is native to the lower Rio Grande Valley of Texas, and formerly ranged northward along the south Texas Gulf coast, while the wider distribution reaches through eastern Mexico into Central America. The species resembles the cabbage palmetto of the Southeast but reads as heavier and more massive, and the much larger seed is the surest way to tell the two apart.
Sabal palmetto, the Cabbage Palmetto, is the classic palm of the Southeastern coast and the State Tree of both South Carolina and Florida. Blue-green, costapalmate (fan) leaves crown a straight trunk that thickens to about a foot and a half across, and the whole reads as the very image of the coastal South. The palm grows commonly to around thirty feet and climbs considerably taller in Florida.
Sabal rosei, the Llano Palm, is a handsome fan palm from the Pacific side of Mexico, ranging through the states of Sinaloa and Jalisco, where the palm covers the coastal plains, the llanos, by the hundred thousand. Thick, blue-green, leathery fan leaves give the plant a bold, sculptural quality, and the slim, straight trunk is either patterned with a neat spiral of old leaf bases or swept clean to reveal the ring-like scars beneath.
Sageretia theezans, the Chinese sweet plum, is a graceful evergreen shrub of the buckthorn family, native to southern China, where the plant grows to some three to eight feet with fine, zigzagging branches, small glossy leaves, and a handsome flaking, multicolored trunk. New growth often emerges bronze before settling to deep green, and in the mild-winter gardens that suit the species the foliage holds the year round, giving a dense, fine-textured presence rare in so tough a plant.
Salix eriocephala, the heart-leaved or Missouri River willow, is a graceful native shrub, sometimes a modest multi-stemmed tree, of riverbanks and wet meadows across northern and eastern North America. The plant rises on several trunks clad in coarse gray bark, reaching roughly eight to a dozen feet in the garden and more in wild thickets, and the epithet eriocephala, meaning woolly-headed, points to the soft, silky catkins that give the willow much of its charm.
Salvia 'Phyllis Fancy' is a vigorous, large hybrid sage with a good pedigree, found as a chance seedling at the University of California, Santa Cruz Arboretum and named for a longtime volunteer there. The parentage is thought to involve Salvia leucantha, the Mexican bush sage, and possibly Salvia chiapensis, though the cross has never been confirmed.
Salvia darcyi, the Galeana sage, is a bold Mexican sage grown for one of the purest scarlets in the whole tribe of salvias, a color that reads across a garden and pulls hummingbirds from a distance. Through the heat of summer and well into fall, upright spikes of large, bright orange-red flowers rise above a mound of soft, gray-green, heart-shaped leaves that release a clean minty scent when brushed. Few tender salvias give so long or so vivid a show.
'Cherry Queen' is a North Carolina-bred salvia from one of the most important salvia hybridizers America has produced. The cross is a deliberate one, between Salvia greggii, the autumn sage of the Texas and Mexican borderlands, prized for drought tolerance and a six-month bloom, and Salvia blepharophylla, a Mexican species whose name, eyelash-leaved sage, comes from the tiny fringe of hairs at the edge of each leaf (Greek blepharon, eyelash, and phylla, leaves). Blepharophylla carries the most saturated, signal-bright red flower in the whole genus, but the plant spreads by stolons in ways most gardeners do not want and resents cold winters, while greggii brings the bones and the durability. The breeder who put the two together was Dr. Richard "Rich" Dufresne of Candor, North Carolina, an organic chemist who became, more or less by accident, the leading American breeder of woody salvias for the eastern climate. Dufresne died in December 2018, leaving a body of work that includes 'Cherry Chief', 'Maraschino', and this selection, which Plant Delights Nursery called the most brilliant red they had ever seen on any hardy salvia.
Here is a salvia that wants what salvias are not supposed to want. Most of the genus comes from sunbaked Mediterranean hillsides, dry Mexican mountains, and dusty California chaparral, so that the very word Salvia is shorthand for full sun, gravelly soil, and a watering regime closer to neglect than care. Salvia koyamae, endemic to the cool wooded slopes of Honshu in Japan, breaks every rule, asking instead for shade, moist humus-rich woodland duff, and the cool morning light that filters through a deciduous canopy. This is, in short, the salvia to grow where hostas would otherwise go.
Salvia leucantha 'Midnight' is the all-purple form of the Mexican bush sage, and the difference is worth seeing. Where the common kind carries small white corollas against purple calyces, 'Midnight' drops the white altogether, so the long arching spikes read as pure, saturated purple from calyx to flower, a deeper and more solid color that carries even further across an autumn garden.
Salvia 'Anthony Parker' is a big, late-blooming hybrid sage with a charming South Carolina origin. The plant arose as a chance seedling in the Beaufort garden of the plantswoman Frances Parker, a cross between Salvia leucantha 'Midnight' and the pineapple sage Salvia elegans, and Frances rescued the young seedling from the path of the mower and named it for her grandson Anthony, then a year old, in 1994. From that lucky reprieve came one of the best late-season salvias for the South.
Salvia madrensis, the forsythia sage, is a big, robust perennial from the mountains of Mexico, grown for a late-season show of soft yellow. Broad, quilted, triangular leaves clothe stout, square, mint-family stems, and in fall the plant lifts terminal clusters of clear yellow flowers that recall a forsythia in bloom and give the sage its common name, an unusual color and a welcome one so late in the year.
Salvia mexicana, the big blue Mexican sage, is a tall, dramatic perennial grown for deep, saturated blue-violet flowers that arrive when the gardening year is winding down. The tubular blooms, set in contrasting calyces, are carried in long spikes above bold, heart-shaped leaves, and few plants bring so pure and deep a blue to the autumn garden.
Salvia microphylla 'Deltoid' is a shrubby form of the littleleaf or baby sage grown for warm salmon-coral flowers and neat, triangular, deltoid leaves. The small tubular blooms open over a long season and read as a soft coral against the fine, glossy foliage, a gentler tone than the hot scarlet of many littleleaf sages.
Salvia microphylla 'Hot Lips' is the famous temperature-shifting bicolor of the littleleaf sages, and the trick is worth the fame. In the cool of spring the flowers may open pure white or pure red, but as summer heat builds they turn strikingly two-tone, white below with a bold red lip, so that a single plant can carry white, red, and red-and-white flowers all at once. The show runs from late spring until frost.
Salvia uliginosa, the bog sage, is an airy, sky-blue perennial grown for clouds of clear, cool blue flowers held on tall, slender, branching stems from midsummer into fall. The species name uliginosa means of marshes, and the plant lives up to it, thriving in the moist ground most sages refuse, so the bog sage fills a niche few others in the genus can.
Salvia urticifolia, the nettleleaf sage, is an uncommon herbaceous perennial native to the Appalachians and the wider Southeast, grown for cool blue-to-violet flowers set off by a pair of white marks in the throat. The bloom comes in the freshness of mid to late spring, the flowers hovering above serrated, nettle-like leaves, and in a generous year a lighter second flush may follow in late summer.
