Turn up the heat. The blazing beauties are the plants that bring fire to the garden, the hot reds, blazing oranges, and molten yellows that carry the sunniest, most exuberant color a border can hold.
The Oconee azalea is the flame azalea of the lowlands, and for a Southern gardener that difference matters. Where the mountain flame azalea pines for cool Appalachian summers, this Piedmont cousin was born to the heat, thriving in the clay hills and stream bluffs of middle Georgia and South Carolina and taking the humidity of the Deep South in stride. The reward is the same fire in the flower: bright orange to orange-red trusses, sometimes shading to salmon or gold, opening in mid-spring.
'Koromo Shikibu' is the spider azalea, and there is nothing else in the genus quite like the flower. Instead of the usual funnel, each bloom splits into narrow, strap-like petals that spread apart like the legs of a starfish or a spider, lavender to purplish-pink, spotted darker at the base, and carried in such profusion in spring that the whole shrub seems to shimmer. Once seen, the flower is not forgotten.
The lesser-known of the two Hong Kong roses in the Woodlanders collection, Rhodoleia henryi is a handsome evergreen shrub or small tree from southern China and Taiwan, still little grown in the United States and, like much of the genus, occasionally muddled in the naming. Set beside the sister species Rhodoleia championii, this plant carries narrower, more pointed leaves, and the species is reckoned the more cold hardy of the two, a useful distinction for gardeners testing the edge of the range.
Fragrant sumac is a versatile deciduous shrub native across much of the eastern and central United States, where the plant threads scattered woodlands, rocky slopes, and open banks. The trifoliate leaves, often mistaken at a glance for poison oak, are entirely harmless, and a crushed leaf releases the clean, lemony-resinous scent that gives the plant every one of the common names, from fragrant sumac to skunkbush, depending on the nose. The genus name Rhus is the old Greek and Latin word for the sumacs, and the epithet aromatica names the scent directly.
Hardiness
Zones 3–9
Light
Full Sun / Part Shade
Height
4–6 ft.
Spread
4–6 ft.
Bloom
Yellow
Plant type
Shrub
Traditional use
digestive health, topical applications, general wellness
Littleleaf sumac is a big, bushy deciduous shrub of west Texas, the Southwest, and adjoining Mexico, built for heat, sun, and drought. The compound leaves are made up of tiny leaflets that give a fine, almost feathery texture, and they turn rose to purple in fall, an unusual and lovely tone among the sumacs. Tough and dryland-hardy, the plant is well worth trying in the South and any hot, well-drained garden.
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.
Sarcococca ruscifolia, the fragrant sweet box, is an evergreen shrub of the boxwood family, native to China and East Asia, grown for a winter perfume that belies the tiny flowers that carry it. In late winter and early spring the small, creamy white flowers open along the glossy stems, easy to overlook by eye but powerfully sweet on the air, and unlike the black-fruited sweet boxes, this species follows the flowers with glowing red berries.
Few native trees announce themselves as cheerfully as Sassafras albidum, whose leaves come in three shapes on the same branch: an unlobed oval, a two-lobed mitten, and a three-lobed silhouette like a splayed hand. A member of the laurel family, Lauraceae, and kin to bay, cinnamon, and spicebush, sassafras carries aromatic oils in every part, so that a snapped twig or crushed leaf releases a warm, root-beer sweetness. The common name traces back through Spanish to the colonial Southeast, where the tree was among the first American plants shipped to Europe as a marketable medicine.
