The shrubs that furnish a garden. Small and medium shrubs are the versatile, human-scaled woody plants that fill borders, edge paths, and knit the taller structure to the ground, the layer most gardens rely on most.
NuClem is a special clementine among the cold-hardy citrus, a nucellar selection of the familiar clementine mandarin. Our friend and citrus guru Tom McClendon, who shared this one with us, explains it best: "NuClem is a nucellar Clementine, meaning that it comes true from seed. Most Clementines are polyembryonic, meaning that seeds will almost always produce hybrids with other citrus nearby. NuClem also is distinctive in its cold-hardiness, having proven reliably hardy in Montezuma, GA, making it probably on par with Satsuma. Fruit is globular, about two inches in diameter, with a mildly adherent peel more like an orange than a mandarin. Fruit quality is excellent."
The Meyer lemon is the great container citrus, beloved for thin-skinned, deep yellow-orange fruit that is sweeter and less acidic than a true lemon, and for fragrant, purple-tinged white flowers that come more than once a year. A small evergreen tree, the Meyer is thought to be a natural hybrid of lemon and some other citrus, probably a sweet orange or mandarin, which accounts for the mellow, almost floral flavor that has made the fruit a favorite of cooks.
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.
Clinopodium coccineum is a small, aromatic, semi-evergreen subshrub of the mint family, native to the deep, well-drained sands of the southeastern coastal plain, from Mississippi and Georgia down into Florida. The loose, open frame and small, spicy-scented leaves would earn a quiet place on their own, but the flowers are the event: showy scarlet tubes carried over a long summer season, held out like little trumpets that hummingbirds cannot resist.
'Amber Blush' is a soft-toned selection of the native scarlet calamint, Clinopodium coccineum, an aromatic, semi-evergreen subshrub of the mint family from the deep sands of the southeastern coastal plain. Where the wild species flowers in hot scarlet, this apricot clone brings a gentler, more complicated color to the same tough, hummingbird-loved plant.
Colquhounia coccinea is a showy, soft-wooded shrub of the mint family, clothed in medium-sized leaves that are downy and pleasantly rough to the touch. Through late summer and fall come dense terminal spikes of orange-scarlet, yellow-throated flowers, a hot late-season color that hummingbirds and pollinating insects work eagerly. Plant in a sunny, well-drained site with good soil, where the arching stems can be trained against a warm wall.
The conradinas are dense, aromatic, low shrubs of the mint family, dressed in small, usually needle-like green or gray leaves and hung with little pale purple flowers. Six or seven species grow wild in the southern United States, most of them in Florida on sand or very sandy soil, and all but this one (and one possibly new species) are federally listed as threatened or endangered. Conradina canescens is the common, widespread member of the clan, a somewhat variable plant of the Gulf Coast dunes of northwest Florida and adjacent Alabama.
Some years ago we introduced two selections of Conradina collected on the Styx River in southern Alabama, called 'Low Gray' and 'Low Green', and we hope those clones survive in cultivation somewhere still. On a return visit to the Styx River site we gathered several more cuttings from distinctly low-growing plants. This conradina haunts a sandy woodland and cutover near the Styx River, and may well represent a new, as yet undescribed species; what appears to be the same plant turns up some miles east on Blackwater State Forest in northwest Florida. The Styx River plant differs clearly from the taller, more upright Conradina canescens of the open Gulf Coast.
A small shrub of the Cumberland Plateau, found only on the flood-scoured cobble and sand bars of three river systems in eastern Tennessee and a sliver of Kentucky: the Big South Fork of the Cumberland, the Caney Fork, and the Obed. The rest of the Conradina clan keeps to the sand scrub of Florida and the Gulf Coast of Alabama, sun-baked and semitropical. This species took a different path, north into the cooler uplands, and the cold-hardiness that came with the move is the gift to gardens farther north.
Few native shrubs carry as much quiet history as Croton alabamensis, the Alabama croton, a rarity known in the wild from only a handful of counties along the Cahaba and Black Warrior rivers, where the shrub clings to dry, limestone bluffs. This is a plant of the Southern woodland edge, once more widespread and now treasured wherever a gardener can offer the Alabama croton a home.
'Graniteville' is a low, ground-hugging selection of Cyrilla racemiflora, the native Titi, and one of the more distinctive forms of a plant already known for variability. Where the species can build into a small tree, this Woodlanders introduction stays wide and knee-high, and the story behind the plant is a piece of local botanizing: we propagated 'Graniteville' from an almost prostrate individual found years ago on an eroded sandhills seepage slope near Graniteville, South Carolina, and the ground-hugging habit has held true ever since in cultivation.
Winter Daphne is one of the most beloved and most exasperating shrubs in the southern garden, grown for a fragrance that arrives in the dead of winter and carries clear across a yard. In late winter the dense, rounded evergreen opens tight clusters of small, waxy, rose-pink flowers, and the scent, sweet and far-reaching, is the whole argument for growing the plant. This is the non-variegated form, with clear pink bloom and glossy, unmarked deep green leaves.
Hardiness
Zones 7–9
Light
Full Sun / Part Shade
Height
4–5 ft.
Spread
4–5 ft.
Bloom
Pink
Plant type
Shrub
Traditional use
pain relief, topical applications, respiratory support
Paper bush, Edgeworthia chrysantha, spends the growing season as a quiet, blue-green shrub and saves the show for the dead of winter. In late winter and earliest spring, while the branches are still bare, the shrub hangs rounded, downward-facing clusters of small tubular flowers from the tips of every stem, silvery-furred buds opening to warm yellow throats that carry a sweet, daphne-like fragrance across cold air. A cousin of Daphne and the native leatherwood Dirca in the family Thymelaeaceae, paper bush shares the tribe's supple, hard-to-snap branches and honeyed scent.
Fothergilla gardenii is a small deciduous shrub, usually three to four feet tall, and a native of the southeastern coastal plain, where the plant haunts moist, peaty pinelands and bogs. A member of the witch-hazel family, Hamamelidaceae, and a close cousin of the witch-hazels themselves, dwarf fothergilla shares the family gift for honey-scented late-winter and spring bloom on bare or barely-leafed stems.
'Kleim's Hardy' is a small, mounding evergreen gardenia with lustrous black-green leaves and single, star-shaped ivory flowers, and one of the most cold-tolerant gardenias in the trade. Where most gardenias pile petal on petal, this one opens flat and simple, five or six broad ivory petals flaring around a boss of creamy-yellow stamens, and carries the same heavy, sweet perfume in a lighter, cleaner frame.
The gardenia needs little introduction to a Southern gardener: glossy evergreen leaves and thick, waxen, intensely fragrant flowers that perfume a whole summer evening. This selection, grown simply as the Yellow gardenia, adds a twist, for the blooms open creamy white and deepen with age to a rich butter-yellow, so a single shrub can carry both colors at once against the dark foliage.
'Daruma' is a compact, dwarf gardenia, a dense little evergreen that holds a tidy dome the year round and fits the tight corners where a full-sized gardenia would crowd. The name recalls the round, weighted Daruma dolls of Japan, and the plant keeps a similarly rounded, low habit that needs almost no shaping.
This striking, rather upright gardenia is a Woodlanders introduction that has since become more widely available, grown less for bloom than for the boldly marked leaves. Each glossy leaf is splashed and margined in strong yellow, so the whole shrub reads as a soft fountain of gold and green, a rare thing among broadleaf evergreens and a bright note for a shaded corner.
Every collection has its unnamed treasures, and this gardenia is one of ours: a plant grown from seed gathered on Emei Shan, the great sacred mountain of Sichuan in southwestern China. The species has not been pinned down, but the plant is unmistakably a gardenia, upright in habit and clothed in long, narrow, glossy dark green leaves quite unlike the broad foliage of the common Cape jasmine.
The Indio mandarinquat is one of those happy accidents that citrus breeding throws up now and then, a natural cross between a mandarin (Citrus reticulata) and a kumquat (Citrus japonica) that borrows the best of both parents. From the mandarin come the size, the deep orange color, and the perfume; from the kumquat come the sweet, tender, wholly edible rind and a welcome measure of cold tolerance. The fruits hang like small golden lanterns against dark evergreen leaves through winter, oblong and glossy, and the whole tree carries a poise that belies how easy the plant is to grow.