The 'Katie' Ruellia is the well-mannered dwarf of the Mexican petunia, a low, spreading mound barely a foot high that blooms without pause from summer until frost. Above narrow, strap-like, dark green leaves open a steady succession of bluish-purple, trumpet-shaped flowers, each an inch and a half across and lasting but a single day, replaced the next morning by a fresh crop. In Charleston, South Carolina, gardeners know the tribe by the charming old name Breakfast Flower, for the way the blooms greet the day and are gone by evening.
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.
Ruscus aculeatus, Butcher's Broom, is a low evergreen shrub of the asparagus family, native to the woodlands of southern Europe, the Mediterranean, and the Middle East, and reaching north into the milder parts of the British Isles. What look like glossy, spine-tipped leaves are not leaves at all but flattened stems called cladodes, which take over the work of photosynthesis while the true leaves are reduced to tiny scales. The generic name comes from the Latin ruscum, the old word for a butcher's broom, and the epithet aculeatus means prickled, for the sharp point that tips each cladode.
Ruscus aculeatus 'Wheeler's Variety' is a low, self-fruiting selection of Butcher's Broom, and the whole point of the plant is written into that phrase. The wild species is dioecious, needing a male and a female to set fruit, but 'Wheeler's Variety' is a hermaphroditic clone that carries perfect flowers and so ripens a heavy crop of scarlet berries entirely alone, with no partner required. For a gardener who wants the winter show from a single plant, this is the form to grow.
Sabal 'Birmingham' is one of the hardiest fan palms an American gardener can grow, and the palm owes its survival to Woodlanders. Well-established specimens come through USDA Zone 7, deep into country where an ordinary cabbage palm needs coddling and near-perfect siting just to limp along. Broad, costapalmate, deep green fronds rise on a stout, slowly building trunk, giving the unmistakable palm silhouette hundreds of miles north of where the family usually stops.
Sabal etonia, the scrub palmetto, is a small fan palm found nowhere in the world but Florida, where the palm is a signature of the sand pine scrub, most abundantly along the ancient dunes of the Lake Wales Ridge. The specific epithet etonia comes from the Etonia scrub of Putnam County, the country where the species was first collected, so the botanical name carries a Florida place with it.
Sabal louisiana, the Louisiana Palmetto, is best pictured as a dwarf palmetto grown large. Where the familiar Sabal minor stays stemless, this palm builds a stout trunk in time and carries broad, blue-green, fan-shaped leaves on a far more robust frame, which is why the plant has been passed back and forth in the books, treated sometimes as a form of Sabal minor and sometimes as a hybrid with Sabal texana.
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 minor, the Dwarf Palmetto, is the hardiest of the native fan palms and the one most gardeners can grow. The palm stays essentially stemless, holding a low fountain of stiff, blue-green, fan-shaped leaves straight from the ground, with the growing point set safely at or below the surface. Erect fruiting stalks rise well above the foliage and carry small black fruit about a quarter inch across.
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.
Sabal tamaulipensis is a solitary fan palm from the dry limestone hills of northeastern Mexico, where the species climbs the San Carlos Mountains of Tamaulipas and neighboring Nuevo Leon. Stiff, rounded, blue-green fans are held on arching stalks above a trunk that stays short for many years, so young plants read as a fountain of palmate leaves close to the ground. In habitat the palm can eventually reach fifteen to twenty feet, though cultivated plants are slow and often stay compact, and older specimens sometimes recline on a horizontal trunk rather than standing straight. Small, fragrant, creamy flowers give way to round black fruit in the wild.
Sabatia dodecandra var. kennedyana, the Plymouth rose-gentian, is a globally rare perennial wildflower of the gentian family, treasured for large, starry, rose-pink flowers carried on slender stalks above a low basal rosette. Each bloom opens flat to nine, ten, or eleven clear pink petals around a yellow eye ringed in red, a jewel-like design more often expected of a cultivated exotic than a native pondshore plant. The genus name honors Liberato Sabbati, an eighteenth-century Italian botanist, while the epithet kennedyana remembers the botanist George Golding Kennedy, whose name the older common name, Kennedy's marsh pink, carries still.
Sageretia minutiflora, the shellmound buckthorn, is a rare and little-known native shrub of the Southeastern coast, with scandent, half-climbing, somewhat spiny branches and small, glossy, faintly triangular leaves. The habit falls between shrub and vine, so the plant can be left to mound and tangle or trained up a fence or arbor, and the fine, dark, semi-evergreen foliage gives a handsome year-round texture in the mild coastal gardens where the species thrives.
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 chaenomeloides, the Japanese pussy willow, is a fast-growing shrub or small tree native to Japan, Korea, and parts of China, long valued in East Asian gardens for the show the plant makes in the depths of winter. Well before the leaves break, the bare branches set fat, silvery-white catkins with a soft, velvety nap, the largest and most striking of any pussy willow, and the branches are cut by the armful for early-spring arrangements.
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.
Salix integra 'Hakuro Nishiki', the dappled willow, is an elegant small willow grown above all for the show its new growth makes in spring. As the shoots unfold, the glossy leaves emerge splashed and mottled in pink and creamy white, so freely that the whole plant reads as a soft cloud of blossom-pink from a distance, before the variegation settles to green and white through summer. The Japanese cultivar name, roughly white-dappled brocade, catches the effect exactly.
The willows gave the world its first painkiller. Willow bark, steeped by Greek and Native American healers alike for fever and ache, carries salicin, the compound nineteenth-century chemists refined into salicylic acid and, in time, aspirin, which still wears the genus name buried in the chemistry. This particular willow comes by a quieter trade. Salix koriyanagi is the Korean basket willow, the name meaning just that, long grown across Korea, Japan, and China for slender rods woven into baskets and furniture by hands that wanted something straight, supple, and strong.
