Salvia 'Indigo Spires' is a big, free-flowering hybrid sage grown for the long, tapering wands of violet-blue bloom it throws from early summer straight through to frost. Each spike packs small, rich violet flowers tightly in whorls above dark, near-black calyces, and the spikes lengthen and curve as the season goes, so a settled clump reads as a haze of deep blue-purple for months on end. Few perennials give so much color for so long a run.
Lonicera sempervirens 'Sulphurea' is coral honeysuckle gone golden, a yellow-flowered form of the native trumpet honeysuckle that trades the usual scarlet for clear, soft sulphur-yellow. The tubular flowers cluster in tiered whorls at the branch tips from late spring through summer, glowing against fresh green leaves so the whole vine looks sunlit even under a gray sky.
Blue vervain rises in summer as a candelabra of slender, pencil-thin spikes, each one lit from the base upward with tiny, five-lobed flowers in a saturated purplish blue that few native perennials can match. Verbena hastata is a clump-forming perennial of eastern North America, reaching two to four feet in good ground and occasionally stretching to six, on stiff, square, hairy stems that branch toward the top. The lance-shaped leaves are sharply toothed and rough to the touch, a coarse green foil for the refined flower spikes above. Bloom comes slowly and deliberately from July into September, only a few florets open on each spike at any moment, so the plant seems to smolder for weeks rather than flare all at once.
Yaupon holly is a small-leaved evergreen shrub or small tree of the southeastern United States, native from coastal Virginia south to Texas. Adaptable to a fault, salt tolerant, drought tolerant, and willing in sun or shade, Ilex vomitoria takes shearing as gracefully as any boxwood, which has made the species a Southern mainstay for hedges, topiary, and clipped evergreen structure. The tiny white flowers open from March into May and are easy to miss, but the bees do not miss them, and on female plants they give way to a heavy crop of small, translucent berries that hang on well into winter.
Hardiness
Zones 7–10
Light
Full Sun / Part Shade
Height
8–10 ft.
Spread
6–8 ft.
Bloom
White
Plant type
Shrub
Traditional use
general wellness, mental & emotional well-being, detoxification & cleansing
Clethra alnifolia, the summersweet or sweet pepperbush, is a deciduous native of the eastern United States, at home along pond edges, in damp woods, and at the margins of coastal swamps from Maine to Florida. The species spreads gently by suckers into colonies of upright stems, and earns the name sweet pepperbush from the small, peppercorn-like seed capsules that follow the flowers and hang on through winter. For all that, the summer flowers are the reason to grow them: erect bottlebrush spikes, intensely honey-scented, that open over many weeks in the heat of July and August when little else in the shrub border is in bloom.
Jasminum officinale, also known as white jasmine, is a climbing vine with delicate white blooms. This plant grows well in southern zones and performs best in full sun with support.
In the dim, humid hush of a Southern swamp or the shaded edges of a woodland stream, Osmunda regalis var. spectabilis, commonly known as the American royal fern, stands as a silent monarch. This grandiose fern, native across eastern North America, unfurls towering fronds that burst upward in graceful rosettes, often reaching 3 to 6 feet tall with a spread of 2 to 3 feet. The distinctive, dignified look has earned these ferns the moniker flowering fern, a nod to the upright, spore-laden fertile fronds that crown each spring with tassel-like clusters before maturing to russet-brown.
'Desi Arnez' (Clinopodium georgianum hybrid) turned up as a chance seedling in the garden of Robert Mackintosh, a cross of uncertain parentage that Woodlanders judged worth keeping and worth introducing. The likeliest account is a quiet romance between Georgia savory (Clinopodium georgianum) and a neighboring false rosemary (Conradina), two southeastern natives that seldom bother to cross the line between their genera. Botanists who keep their Latin tidy now file the result under the bigeneric name ×Clinadina, which is roughly how the field admits it never saw the match coming.
Senecio confusus, commonly known as the Mexican Flame Vine, hails from the warm, sun-soaked regions of Mexico and Central America. This vibrant climbing vine has been cherished for generations, not only for a striking appearance but also for resilience and versatility in various landscapes.
Malvaviscus drummondii is the small Turk's cap, the wild, native cousin of the larger Mexican wax mallow and, for many Southern gardeners, the better plant of the two. A relative of the hibiscus in the mallow family, Malvaceae, this shrubby perennial is native to Texas, the Gulf Coast states, and on south, and grows wild in the dappled shade of woodland edges and stream banks where few other bright flowers will bloom.
Step into a North American wetlands grove, and you'll find Osmunda cinnamomea, the majestic cinnamon fern, standing tall on fronds that arch with the dignity of cathedral windows. Native to rich, damp woodlands and boggy stream edges across eastern North America, this stately fern thrives in humus-laden soil, the base cloaked in cinnamon-colored fibers that inspired the common name. In spring, the center of each dark green vase unleashes erect fertile fronds, spore-tossing cinnamon sticks that rise above the sterile foliage before maturing to warm, russet brown.
From the warm lower slopes of the Himalayas, where they scramble through scrub from India and Nepal on into Bhutan, comes one of the more theatrical shrubs you can grow. The genus carries the name of Johan Theodor Holmskiold, an eighteenth-century Danish botanist, while sanguinea nods at the blood-red flush the flowers take on with age. For years they sat in Verbenaceae. Botanists have since moved them into Lamiaceae, the mint family, which makes them distant kin to salvia, rosemary, and teak. You would never guess as much to look at them.
Weigela is a deciduous shrub of rounded habit and opposite oval leaves. This cold-hardy old-fashioned favorite is native to eastern Asia. 'Java Red' is an old variety also known as 'Foliis Purpureis'.
Hypericum frondosum 'Sunburst' is the garden-refined face of a tough native shrub, a compact, rounded selection that mounds to about three feet and fills each summer with powderpuff golden flowers, the largest in the species at nearly two inches across, each a dense brush of stamens over broad yellow petals. The leaves are a cool blue-green, and as the season turns the older stems reveal red-brown, exfoliating bark, so the shrub keeps a quiet interest well past bloom.
The Lauraceae is an underappreciated family. Its members include cinnamon, camphor, bay laurel, and the avocado, which gives you some sense of the range of things the family has contributed to human civilization. Machilus thunbergii is another member in good standing, though these trees arrive in the Western garden with considerably less fanfare than their relatives. In East Asia they are well known: a coastal evergreen tree native to Japan, Korea, Taiwan, China, and Vietnam, valued for timber, planted as a street tree, and the source of makko, a powder derived from the bark and used for centuries to bind incense and, in a more practical application, to repel mosquitoes. The bark also has a history in traditional medicine. Here, in other words, is a tree that has been useful to people for a very long time, which is not a bad thing for a plant to be.
This one comes with a paper trail. 'Illustris' was first described in 1873 by William Bull, the Chelsea nurseryman, who listed the plant as Alocasia illustris in his catalogue of new and rare plants and sold them out of his glasshouses at 536 King's Road. Nobody knows quite where they came from. Colocasia esculenta is a restless, variable species, and Bull had rivers of tropical material moving through the place, so the likeliest story is that he caught a dark-leaved sport among the green, liked what he saw, and kept dividing the stock. Every 'Illustris' in cultivation descends from that one Victorian decision. A 150-year-old clone, still in production.
Osmanthus armatus, a rare gem from the evergreen forests of western China, brings both elegance and resilience to the garden. This large, multi-branched shrub is known for thick, lustrous, dark green leaves adorned with prominent marginal and terminal spines, reminiscent of holly.
Some plants arrive with a pedigree, and some arrive with a person. This one came to us from Ken Wurdack, a botanist at the Smithsonian's National Museum of Natural History, and his work centers on the systematics and evolution of the spurge family, Euphorbiaceae. He's the sort of botanist who describes entirely new genera in the tribe Hippomaneae, which happens to be the exact tribe Sebastiania sits in. So this is a spurge handed over by a man who names spurges for a living, which is about the best reference a euphorb could ask for.
This one is named for a doctor and a place. The epithet gardenii honors Alexander Garden, the Scottish physician who settled in Charleston in 1752 and was first to find this shrub, describe the species, and send a plant across to England, the same Garden the gardenia is named for, though this Carolina native may be the truer monument. (The genus belongs to his English correspondent Dr. John Fothergill, in whose garden the shrub later grew; the species is Garden's.) Their home is the southeastern coastal plain, the low acid country of bogs and pine savannahs from the Carolinas to the Florida panhandle and Alabama, scattered and never common, the kind of habitat that disappears quietly.
Ernest Wilson came across this shrub in the late summer of 1901, up in the mountains above Ichang in western Hubei, and sent the seed home to Veitch in Exeter. Of the two thousand or so Asian plants he introduced to the West, "Chinese" Wilson counted Kolkwitzia amabilis among his finest, which is no small ranking once you consider the company they were keeping. Dirr, in the Manual of Woody Landscape Plants, is content to let the explorer have the last word. The beautybush flowered in England by 1910 and went on to become very nearly the defining garden shrub of America between the wars, then quietly slipped out of fashion. These shrubs turn up far less often now than they ought to.
