Penstemon digitalis is one of the most adaptable of the native beardtongues, a clump-forming perennial of moist meadows, prairies, and open woods across the eastern and central United States. 'Husker Red', selected at the University of Nebraska and named Perennial Plant of the Year in 1996, keeps all the toughness of the wild species but wears it in deep wine-red: a basal rosette of glossy maroon foliage that holds color from spring through fall.
Phlox carolina 'Kim' is among the best of the Carolina phloxes, a selection found by the plantswoman Jan Midgley in Alabama and grown ever since for good health and honest flower power. From a low, tidy clump of narrow, almost lime-green leaves rise sturdy stems eighteen to twenty-four inches tall, each carrying an open, airy cluster of pale to bright pink flowers, five petals apiece, hovering just above the foliage from late spring into early summer. Where the border phloxes so often finish the season spotted and tired, 'Kim' holds clean, fresh foliage from spring straight through fall.
Physostegia correllii, Correll's obedient plant, is a rare and handsome member of the mint family, a robust, upright, somewhat succulent perennial rising from thick, spreading rhizomes. Among the false dragonheads the species stands out for unusually dark, glossy green leaves and cool purplish-pink flowers streaked and spotted with darker purple, an inch long and packed into dense terminal spikes.
In Japan they call the shrub tobira, short for tobira no ki, the door tree, because the cut branches were hung in the doorway at Setsubun to turn back demons at the threshold of spring. The broken wood smells rank, which was rather the point: bad spirits, like most of us, would rather not walk through a bad smell. The genus name is kinder and more exact, pitta and sporos, pitch and seed, for the resin that coats the black seeds and glues them to whatever bird carries them off.
Podranea ricasoliana, the pink trumpet vine or Port St. John's creeper, is a fast-growing evergreen climber from the warm regions of South Africa, a member of the trumpet-creeper family, Bignoniaceae, prized for showy, trumpet-shaped flowers.
Polygala x dalmaisiana, the sweet pea shrub, is a fast-growing evergreen hybrid of two South African species (P. oppositifolia and P. myrtifolia), grown for a nearly year-round show of orchid-like flowers on an open, informal frame.
The English laurel is a large broadleaf evergreen shrub grown for bold, glossy foliage, spires of small white flowers, and, at times, small cherry-like red-to-black fruits. The species is variable, with a number of cultivated forms, and the plant is native to eastern Europe and Asia Minor.
If any native perennial could be said to hum, the honor would go to Pycnanthemum muticum. From mid to late summer the blunt mountain mint gathers a shimmer of broad, silver-frosted bracts at the top of every stem, and within them open dense heads of tiny pink-to-white flowers that draw an almost comic density of life: bees of every kind, wasps, butterflies, skippers, moths, and flies working the nectar from dawn to dusk. In a three-year Penn State study that monitored eighty-six species, no plant drew a greater number and diversity of pollinators.
Few native plants look as improbable as the maypop. Passiflora incarnata, the wild passionflower of the American Southeast, opens intricate three-inch flowers of pale lavender and white, each ringed with a fringed corona of wavy filaments above a central column of stamens and styles. Spanish missionaries read the whole Passion of Christ into that structure, the corona for the crown of thorns, the five anthers for the wounds, the three styles for the nails, and gave the genus its devotional name. Common along field edges and roadsides from Virginia to Florida and west to Texas, the vine climbs by curling tendrils or sprawls across open ground.
Hardiness
Zones 7–10
Light
Full Sun / Part Shade
Height
10–25 ft.
Spread
6–10 ft.
Bloom
Purple
Plant type
Vine
Traditional use
mental & emotional well-being, digestive health, reproductive health
Passiflora incarnata alba is the rare pure white form of the native maypop, the wild passionflower of the American Southeast. The flower keeps all the improbable structure of the species, an intricate three-inch bloom with a fringed corona above a central column of stamens and styles, but drained of every trace of lavender: white petals, white sepals, and a white corona, luminous and cool against the deep green foliage. The effect is a ghostly, refined version of a familiar roadside wildflower.
Hardiness
Zones 7–10
Light
Full Sun
Height
6–15 ft.
Spread
3–6 ft.
Bloom
White
Plant type
Vine
Traditional use
mental & emotional well-being, digestive health, reproductive health
Passiflora 'Incense' is a passionflower bred for pure spectacle, an extraordinary cross between the native maypop, Passiflora incarnata, and the South American Passiflora cincinnata. The hybrid gathers the toughness of the native parent and the drama of the exotic one into a single deep-violet flower four to five inches across, the wavy corona filaments frilled and banded in purple and white, carrying a sweet, incense-like fragrance that gives the plant its name.
Passiflora 'Amethyst' is one of the most rewarding of the ornamental passionflowers, a vigorous hybrid grown for large, jewel-toned blooms of glowing red-purple. Each flower opens nearly flat, three to four inches across, the petals and sepals reflexing back to set off a short, banded corona and a lifted central column of stamens and styles. The parentage is somewhat uncertain, as with many old garden passionflowers, but the effect is unmistakable: an amethyst star held out along the vine.
Patrinia scabiosifolia 'Nagoya' is a tough, upright perennial from the meadows and grassy hills of East Asia, grown for airy, flat-topped heads of tiny golden-yellow flowers held high on wiry, branching stems. The species name scabiosifolia points to the deeply lobed basal leaves, which recall those of a scabious, and the whole plant reads as a chartreuse-gold answer to Queen Anne's lace, lending height and a see-through veil to a summer border. In Japan the species is one of the classic seven flowers of autumn, and 'Nagoya' is a garden selection prized for reliable, compact performance.
Small's beardtongue is one of the showiest and most obliging of the eastern native penstemons, a Southern Appalachian wildflower that carries tall spires of lavender-pink to rosy-purple tubular flowers in late spring and holds them for weeks. Each bloom is pale-throated and finely striped inside, a landing-strip for the bumblebees that work the flowers, and the whole plant rises from a handsome rosette of purple-veined foliage on reddish stems.
Wild blue phlox turned up in the Woodlanders catalog almost by insisting on it, growing in the woods around Aiken the way the plant has for as long as anyone can remember. We have watched these colonies for years, and taking this long to offer them is either a comment on our patience or on our woody bias. Possibly both.
'Shortwood' is one of the best of the tall garden phloxes, a strong pink that stands up straight and blooms for weeks in the heart of summer. Each large, domed panicle is packed with fragrant flowers, clear rose-pink around a deeper magenta eye, and the whole plant reads from across the garden, four feet of upright color that never seems to flop.
Phlox pilosa, the downy or prairie phlox, is a native of open woods, prairies, and glades across much of the eastern and central United States, and 'Eco Happy Traveler' is one of the most rewarding garden selections, made for a spreading habit and a long run of clear rose-pink bloom. The soft, downy stems and narrow leaves give the plant the common name, and the whole low mat is topped in late spring by loose clusters of fragrant, five-petaled flowers.
Photinia integrifolia is a handsome broadleaf evergreen, a small tree or large shrub of the rose family, widespread through the hills of southern and southeastern Asia, from the Himalayas and the Western Ghats of India east into Southeast Asia, yet virtually unknown in American gardens. A relative of the familiar Chinese photinia (Photinia serrulata), the species carries the same glossy, leathery foliage but with untoothed, entire-margined leaves, the trait behind the epithet integrifolia.
Physostegia virginiana, the obedient plant, is a familiar native of moist meadows and streamsides across eastern North America, and 'Vivid' is the compact, richly colored selection that has become a garden standard. Upright spikes of deep rose-pink, tubular flowers rise on square, mint-family stems in mid to late summer, holding strong color into early fall when much of the border is fading.
Pieris phillyreifolia, the climbing fetterbush, is one of the strangest and most wonderful of Southeastern natives, an evergreen member of the heath family with a habit unlike any other hardy shrub. In cultivation the plant grows as a neat, small evergreen shrub of two to three feet, clothed in narrow, leathery dark green leaves about an inch long.
