Carya ovata, the shagbark hickory, is one of the great native trees of the eastern woods, as easy to know by the bark as by the nuts. Mature trunks shed long, gray plates that curl away at the ends and hang loose, giving the tree a genuinely shaggy silhouette against a winter sky. Beneath that ragged coat stands a tall, straight, long-lived hardwood that can shade a landscape for two centuries and more.
Native to Central and South America but naturalized across the tropics, this fast-growing shrub flowers not in spring or summer like a well-behaved plant but in autumn and into early winter, hanging great loose clusters of clear, saturated yellow at the ends of arching branches, each bloom built around curved stamens that give a vaguely butterfly-like silhouette. Cloudless Sulphur and Sleepy Orange butterflies find the shrub irresistible as both nectar source and larval host, and tend to arrive in numbers when the flowers open, a fact that either delights or mildly alarms a gardener, depending on how attached one is to the foliage. The caterpillars, for the record, are a vivid chartreuse and genuinely handsome. That is the bargain on offer.
'Buttercream' is a pale yellow-flowered form of Cassia bicapsularis, a softer, more refined take on that shrub's late-season show. Where the species blazes a saturated gold, 'Buttercream' carries clusters of cool, buttery cream-yellow flowers through autumn and into early winter, the same butterfly-like blooms at the ends of fast, arching branches, and the same draw for Cloudless Sulphur and Sleepy Orange butterflies that feed and breed on the plant.
September is a difficult month to write for. The garden is still technically in summer, but the light has shifted, lower and more golden, arriving at an angle that changes everything it touches. Cassia corymbosa reads that shift and answers it. While most summer shrubs are winding down, this one is only beginning, throwing dense corymbs of deep golden-yellow flowers at the branch tips with an enthusiasm that seems almost contrarian for the season.
Few trees carry as much historical weight as the chestnuts, and Castanea mollissima carries it gracefully. This handsome, wide-spreading Chinese native stepped into the void left by one of the great ecological tragedies of the twentieth century, the near-total collapse of the American chestnut, and has been feeding people, wildlife, and the soil ever since. Come fall, the spiny husks crack open to reveal some of the largest, sweetest chestnuts a gardener can grow.
Castanea pumila, the American chinquapin or Allegheny chinkapin, is a deciduous large shrub or small tree native to the eastern and southeastern United States. Long admired by rural foragers and old-time orchardists, this relatively rare native once flourished across the South, where children filled their pockets with the spiny burrs and the sweet, nutty treasure inside.
Cedrus deodara, the deodar cedar, is a true cedar, not to be confused with the many junipers and other conifers that borrow the name. A splendid, broad-spreading large conifer, the deodar carries blue-green needles that are the longest of any true cedar, held in soft tufts along gracefully drooping branchlets and a nodding leader that give the tree a distinctive weeping elegance even at a young age.
Buttonbush is a rounded, deciduous native shrub, easily trained as a small multi-stemmed tree, grown for the curious globe-shaped flowers that give the plant its name. From early summer into fall, creamy-white pincushion balls about an inch across stud the branches, each a sphere of tiny tubular flowers with projecting styles that lend a fireworks effect, intensely fragrant and alive with bees, butterflies, and other pollinators.
Hardiness
Zones 5–10
Light
Full Sun / Part Shade
Height
6–12 ft.
Spread
6–8 ft.
Bloom
White
Plant type
Shrub
Traditional use
pain relief, general wellness, detoxification & cleansing, topical applications
Cephalotaxus harringtonia 'Fastigiata' is the columnar Japanese plum yew, a needle-leaf evergreen of distinctive upright form, the dark green, glossy needles arranged in dense whorls around stiffly erect branches like a green bottlebrush held vertical. An ancient Japanese and Korean clone, the plant occasionally throws a shoot of the flat, two-ranked foliage typical of the wild species, a quiet reminder of the parent.
Cephalotaxus harringtonia 'Prostrata' is the spreading Japanese plum yew, a low, wide-growing evergreen prized for lush, dark green, needle-like foliage and an easy way with shade. Where the species and its columnar forms stand upright, 'Prostrata' lays out horizontally, three or four feet high and twice as wide, layering into a handsome evergreen groundcover or low border.
Ceratostigma willmottianum, the Chinese plumbago, is a small deciduous subshrub grown for one of the truest blues in the garden. From midsummer into autumn the wiry, bristly-leaved stems carry clusters of intense cobalt-blue flowers, each a slim reddish-purple tube opening to five pale-blue lobes, and as the season cools the foliage turns a rich red and bronze, so that blue flower and crimson leaf often share the plant at once.
Few native trees announce spring like Cercis canadensis, the eastern redbud, whose bare branches flush rosy pink and magenta weeks before the dogwoods open. The small pea-like flowers cluster not just along the twigs but straight from the older branches and even the trunk, a charming trick called cauliflory, and give way to broad, heart-shaped leaves. A small, graceful understory tree of eastern and central North America, redbud belongs in the legume family, kin to peas and beans.
Cercis yunnanensis, the Yunnan redbud, is an upright, vase-shaped deciduous tree that opens the spring with an abundance of magenta-pink, pea-like flowers, borne in the redbud fashion straight along the bare branches and older wood before the leaves appear. The heart-shaped leaves that follow are the tree's quieter distinction: glossier and more refined than those of most redbuds, giving a polished, clean-textured canopy through summer.
Cestrum elegans is an erect to arching shrub carrying dense terminal clusters of narrow tubular flowers in a deep crimson that reads as reddish purple in some lights. Bloom arrives late in the growing season and continues until frost, which is precisely when a border needs something, and the shape of those flowers tells you who they are for: hummingbirds work them relentlessly. In the tropics the plants build into a woody shrub of seven feet and more. In zone eight the top freezes off each winter and returns from the root the following spring, reaching three to six feet in a season, which makes this behave less like a shrub and more like a very large perennial.
Cestrum elegans var. smithii is the soft, blush-rose form of the elegant cestrum, a fast, arching shrub that carries dense terminal clusters of slender tubular flowers in a warm pink, mildly fragrant in the evening and a steady draw for hummingbirds. Where the species runs to hot red-purple, this variety keeps things gentler, blooming from late spring well into fall, and year-round under glass.
Few plants announce themselves the way Cestrum nocturnum does, and never by daylight. Through the afternoon the shrub keeps to a quiet, almost ordinary green, the slender branches arching and half-climbing, the small tubular flowers furled and unremarkable. Then dusk arrives, the cream-green trumpets open, and the night-blooming jasmine releases a perfume so far-reaching that it carries across a whole garden on still, warm air.
Chamaecyparis obtusa 'Filicoides', the fernspray hinoki cypress, is grown for one quality above all: foliage held in flattened, fern-like sprays that gather along the branches in dense, layered clusters and cascade in soft, pendulous fans. The effect is unmistakably oriental, deep green the year round, and unlike anything else in the conifer border.
A silvery, soft-textured juvenile-foliage form with an unusual and well-documented history. 'Shiva' was originally presumed to be Chamaecyparis thyoides, the Atlantic white cedar, but now appears to be a form of Chamaecyparis pisifera, the sawara cypress of Japan. The plant was found as a seedling on Cape Cod by Rekha Morris of Pendleton, South Carolina, and introduced by Clarence Towe of Walhalla, South Carolina. By all signs this curious form will never become a large tree.
Leatherleaf is the quiet constant of the northern bog. Chamaedaphne calyculata, the only species in the genus, is a low, thicket-forming evergreen of the heath family that ranges right around the cold northern world, from the peatlands of North America east to the bogs of Finland and Japan, and southward in this country to the pocosins and acid bogs of the coastal plain, as far as South Carolina. Across that vast range, leatherleaf forms the dense, spreading colonies that hold a bog together and shelter the wildlife within.
Among ornamental grasses, Chasmanthium latifolium is the rare one that thrives in shade. River oats, also called northern sea oats and inland sea oats, is a clumping, rhizomatous perennial grass of the eastern and central United States, found in the wild along wooded creek banks, river bottoms, and shaded slopes from Pennsylvania south to Florida and west toward the prairies. The broad, bamboo-like blades are wider than most grasses can claim, and the plant carries them in a loose, arching mound that takes deep shade without sulking.
