The garden's backbone: flowering trees, native and rare shrubs, and evergreens that hold their shape through every season. Many are Southeastern natives; others are quiet collector's plants you won't find at a big-box nursery, chosen for resilience and lasting, year-round interest.
Buddleja salviifolia, the sage-leaf butterfly bush, is a medium to large evergreen shrub from the sun-soaked hillsides of South Africa, and despite the exotic origin the plant has proven remarkably hardy in southeastern gardens, coming through winters at the University of Georgia's Athens trials with quiet resilience.
Hardiness
Zones 7–9
Light
Full Sun / Part Shade
Height
10–12 ft.
Spread
8–10 ft.
Bloom
Purple
Plant type
Shrub
Traditional use
respiratory support, digestive health, topical applications, general wellness
Few hardy shrubs put on a show like Caesalpinia gilliesii, the desert bird of paradise, whose summer flowers open clear yellow and send out a spray of long scarlet stamens like fireworks caught mid-burst. A legume from the dry country of Argentina and Uruguay, long naturalized across the American Southwest, the plant carries ferny, blue-green, mimosa-like foliage that sets off the flamboyant bloom. Botanists now place the species in the genus Erythrostemon, meaning red stamen, though gardeners still know the plant as Caesalpinia.
An evergreen bottlebrush with arching to pendulous branches and dark green, lance-shaped leaves, Callistemon paludosus carries terminal, pink bottlebrush spikes freely in midsummer, an unusual color in a genus mostly given to red. Relatively cold-hardy for a bottlebrush, this is a graceful, easy shrub for a hot, sunny spot.
Calycanthus floridus 'Athens', also circulated under the name 'Katherine', is a yellow-flowered selection of the Eastern sweetshrub, a deciduous native of the Southeastern woodlands long grown for fragrance, adaptability, and strange, many-tepaled flowers. Where the wild plant blooms a deep maroon, 'Athens' opens soft, buttery yellow, an unexpected and elegant turn on a familiar shrub.
Calycanthus floridus 'Michael Lindsey' is the sweetshrub gardeners reach for when fragrance is the whole point. The species, Carolina allspice, is a southeastern native beloved for reddish-brown flowers that smell of ripe fruit, but the scent varies wildly from seedling to seedling, and 'Michael Lindsey' was chosen precisely for a rich, dependable perfume. Add glossy dark green foliage and clear golden fall color, and this selection has become a benchmark, one the plantsman Michael Dirr called the standard by which other introductions will be measured.
Calycanthus 'Venus' is a white-flowered sweetshrub bred by Dr. Tom Ranney at North Carolina State University, drawing on three species at once: the Eastern Carolina allspice (Calycanthus floridus), the California sweetshrub (Calycanthus occidentalis), and the Chinese sweetshrub (Calycanthus chinensis, long known as Sinocalycanthus). The result is a deciduous shrub that carries the best of all three: hardiness, substance, and an unusual flower.
Camellia fraterna is a camellia stripped back to wild beginnings, a species from the hills of eastern China far removed from the big, blowsy blooms of the garden japonicas and sasanquas. Where those carry a few large flowers, this one covers slender, upright branches in a snowfall of small, single, white flowers, faintly pink outside and softly fragrant, that arch the stems with their sheer number. The small, pointed evergreen leaves and open, airy habit give the plant an easy, natural grace.
Most American gardeners know two camellias, the winter-blooming Camellia japonica and the autumn-blooming Camellia sasanqua, each in a hundred named forms. Camellia longicarpa belongs to a different and far less familiar company: the small-flowered wild camellias of section Theopsis, scarcely grown on this side of the Pacific. Woodlanders remains one of the few nurseries offering these lesser-known species to gardeners who want the wild plant rather than the show cultivar.
Fragrance is the rarest thing in a camellia, and Camellia lutchuensis is the great exception, a species grown less for the size of the flower than for the scent that rises from it. The blooms are small, single, and white around a center of yellow stamens, carried in profusion on a twiggy, airy shrub, and they release a sweet, sometimes spicy perfume unusual in a genus famous for having almost none.
Three things to know about this camellia. First, the tea-oil camellia is the most economically important non-tea member of the genus. China has cultivated Camellia oleifera for over two thousand three hundred years for the oil pressed from the seeds, a light, sweetish, monounsaturated cooking oil chemically close to olive oil (around eighty percent oleic acid in both), used for cooking, traditional cosmetics, hair tonics, and the historic rust-proofing of Japanese woodworking tools and chef's knives. Tea oil sits with olive, palm, and coconut among the four major woody oil crops on Earth. This is a working tree.
For a week or two in late spring, the Chinese fringetree disappears under snow. Chionanthus retusus var. serrulatus is a deciduous small tree of East Asia, native to China, Korea, and Japan, and the great show is the flowering: dense, lacy, fringed panicles of pure white, each petal narrow and strap-like, smothering the canopy so thickly that the foliage all but vanishes. The genus name says as much, from the Greek chion, snow, and anthos, flower.
The native fringetree is one of the great small trees of the southern spring. Chionanthus virginicus, a deciduous large shrub or small tree, often multi-stemmed, hangs the whole canopy with fleecy, drooping panicles of narrow white petals in spring, soft as torn paper and lightly fragrant, a look that earned the old country names old man's beard and grancy graybeard. On female plants the flowers give way to clusters of raisin-sized, deep blue-purple fruits that birds take quickly.
Choisya is a small genus of aromatic evergreen shrubs from the southwestern United States and Mexico, kin to citrus in the rue family, and Choisya 'Aztec Pearl' is the garden world's favorite of the tribe. The hybrid, a cross between Choisya arizonica and Choisya ternata, was raised by Peter Moore at Longstock Park Nursery in England, and the selection has proved hardier, more heat tolerant, and altogether easier in the garden than either parent.
Cinnamomum burmannii is the tree behind most of the cinnamon in an American kitchen, an evergreen of the laurel family whose fragrant inner bark, dried and ground, fills the great majority of the spice jars labeled simply cinnamon. Native to the highlands of Indonesia and across tropical Southeast Asia, this glossy-leaved tree is a cassia cinnamon, close kin to true Ceylon cinnamon, to the camphor tree, and to bay laurel, sassafras, and avocado. The whole plant is aromatic, from the leathery leaves to the spicy bark.
A rare evergreen tree from southern China, seldom seen in cultivation, Cinnamomum wilsonii belongs to the cinnamon and camphor clan, and the kinship shows in the glossy, leathery, dark green leaves, four to five inches long and marked with three bold veins that run nearly to the tip. Crushed or bruised, the foliage and bark give off the warm, spicy fragrance the genus is loved for. The Chinese name, chuan gui, places the tree in Sichuan and the mountains of the south, where the tree grows large and the aromatic bark has long been valued.
The rockroses bloom as if for a single day, and in a sense they do. Each papery flower of Cistus x purpureus lasts only from morning to evening before dropping, yet through late spring the shrub opens fresh bloom after fresh bloom, so the whole plant seems perpetually covered. The flowers are the draw: two to three inches wide, crushed-silk petals of pinky purple, each stamped at the base with a deep maroon blotch, a marking that earned the old garden name orchidspot rockrose. Rockroses are not roses, and are not related; the resemblance is only in the open, five-petalled face.
American yellowwood is one of the loveliest and least common of our native trees, a broad, round-headed deciduous tree grown for three good seasons of interest. In late spring, usually May, long pendulous panicles of white, pea-like flowers hang from the branch tips, sweetly fragrant and wisteria-like, a spectacle in the years the tree chooses to flower heavily. Summer brings clean, bright-then-deep green compound foliage, and autumn a dependable, clear golden yellow that is among the best fall color of any hardwood. The smooth gray bark, beech-like, holds the winter garden.
Summersweet, or sweet pepperbush, is one of the most useful of the native shrubs for moist, shaded ground, and 'Hummingbird' is the compact, free-flowering selection that made the species a garden staple. Like the straight Clethra alnifolia, this is a stoloniferous deciduous shrub that forms colonies in moist, acid soil, valued above all for the upright spikes of intensely fragrant white flowers that perfume the whole garden in the heat of summer, when little else is blooming.
The Japanese clethra is grown for bark as much as bloom. Clethra barbinervis is a tall, tree-like deciduous shrub or small tree from the mountains of Japan and Korea, carrying somewhat fragrant terminal racemes of white flowers in summer, in the same sweet-scented family as the native summersweets. But the real distinction is the bark: smooth and polished, gray to warm brown, and exfoliating in age to a handsome patchwork that makes this one of the finest small trees for the winter garden.
Most of the summersweets drop their leaves and sleep through winter; Clethra pringlei keeps them. This Mexican member of the clan is a broad-leaved evergreen, a large, slow-growing shrub or small tree from the mountain woodlands of northeastern Mexico, and one of the more surprising plants in the genus for a gardener who knows only the deciduous American kinds.
