Plants that turn their faces to the light. This is the roll call for the open, sun-struck parts of the garden, the borders and banks that bake from morning to evening, where the toughest, brightest, most floriferous plants do their best work.
Baptisia sphaerocarpa, yellow wild indigo, is the sunny member of the wild indigo clan, a tough, rounded native perennial topped in spring with short, dense spikes of clear bright yellow, pea-like flowers over fresh blue-green foliage. Compact and shrubby, the plant brings strong color and structure to a sunny border.
Called Philippine violet, though neither Philippine nor a violet, Barleria cristata is a showy subtropical shrub that saves its display for the close of the year, opening dark blue-violet, trumpet-shaped flowers through late summer and autumn when much of the garden is winding down. A perennial in zones 8 and 9 and a four-to-six-foot shrub in zone 10, native to India and Myanmar.
Hardiness
Zones 8–11
Light
Full Sun / Part Shade
Height
4–6 ft.
Spread
24–30 in.
Bloom
Blue
Plant type
Shrub
Traditional use
respiratory support, topical applications, pain relief, general wellness
Bejaria racemosa, the tarflower, is one of the odd and lovely surprises of the Florida scrub, a heath-family shrub that looks nothing like the rest of the clan. Where blueberries and azaleas carry small, fused, bell-shaped blooms, tarflower opens wide flowers of seven separate petals, white to soft pink and sweetly fragrant, held in loose summer racemes. The genus honors the eighteenth-century Spanish botanist Jose Bejar, and though older books spell the name Befaria, botanists have since settled on Bejaria.
Crossvine is a high-climbing, semi-evergreen native vine with bright trumpet flowers, and 'Helen Fredel' is a large-flowered selection in red-orange with a yellow throat, a shade between the old varieties 'Atrosanguinea' and 'Tangerine Beauty'. Climbing high by tendrils and adhesive holdfasts, the crossvine flowers heavily in early summer and again, more lightly, later, and shows to best effect on a fence, an arbor, or a trellis in sun or part shade.
Crossvine is a high-climbing, semi-evergreen native vine, and 'Tangerine Beauty' is the famous tangerine-orange selection, opening a spring blaze of bright orange, trumpet-shaped flowers and blooming again, more lightly, through the season. Climbing high by tendrils and adhesive holdfasts, the crossvine shows to best effect on a fence, a wall, or a trellis in sun or part shade, where the early trumpets draw hummingbirds in numbers.
Crossvine is a vigorous, semi-evergreen native climber that ascends by tendrils and adhesive holdfasts, and var. atrosanguinea is the red one: where the typical crossvine flowers orange, this striking selection, introduced by Woodlanders, carries abundant deep red to red-purple trumpets, often over narrower, longer leaves. The flowers even smell faintly of mocha on a warm day.
Bouvardia ternifolia, the firecracker bush, is a compact, heat-loving shrub of the southwestern United States and Mexico, hung from late spring to frost with clusters of long, slender, scarlet-red tubular flowers. Few plants pull hummingbirds in like this one: the bright tubes are pitched exactly for their bills, and the bloom keeps coming through the hottest months when little else holds color.
Buddleia alternifolia, the fountain or alternate-leaf butterfly bush, stands apart from the usual butterfly-bush crowd. A deciduous shrub native to northwestern China, the fountain butterfly bush is the most cold-hardy of the genus, and is grown above all for a weeping form and an early-season flood of fragrant, lavender-purple bloom.
Buddleia cordata ssp. tomentella is a striking, large evergreen shrub with broad, somewhat heart-shaped leaves in soft gray-green, the lighter undersides flashing in every breeze. First collected by Yucca-Do Nursery near Los Lerios in Coahuila, Mexico, the plant was originally offered by Woodlanders as Buddleia sp. 'Los Lerios', and the true identity was later confirmed by Dr. Jon Lindstrom of the University of Arkansas, a longtime customer and plantsman of note.
Buddleia lindleyana, Lindley's butterfly bush, is the elegant outlier of the genus, an open, arching shrub from China hung in summer with long, slender, gracefully curved racemes of purple-violet flowers. Where most butterfly bushes carry stiff cone-shaped panicles, this one drapes, the curving spikes nodding from the tips of the branches from June until frost.
Buddleia loricata, the mountain sagewood, is a rugged evergreen from the high Drakensberg of South Africa and Lesotho, and one of the hardiest of all the butterfly bushes. Unlike the familiar deciduous buddlejas, this species holds narrow, crinkled, sage-like leaves the year round, dark green above and felted silvery white beneath. The species epithet loricata means clad in mail or armored, a nod to that tough, quilted foliage, while the genus honors the English clergyman-botanist Adam Buddle.
A yellow-flowered butterfly bush, Buddleia x weyeriana 'Honeycomb' is a vigorous hybrid of Buddleia globosa and Buddleia davidii that the late Dr. Michael Dirr judged better than the older 'Sungold'. The plant came to Dirr from Crathes Castle Garden in Scotland, bought as the variety 'E.H. Wilson' but proving to be a very different and superior yellow butterfly bush, named 'Honeycomb' and a standout in Georgia trials, flowering as late as Thanksgiving.
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.
Callerya reticulata, the evergreen wisteria, is one of the most graceful vines for the Southern garden, and one of the most refined. Once known to botanists as Millettia reticulata and Wisteria reticulata, this evergreen climber is not a true wisteria, though the cascading habit and aristocratic bearing recall one. A vine for porches and pergolas, the evergreen wisteria prizes quiet bloom over brash spectacle, and carries both fragrance and folklore in the tendrils.
Callicarpa acuminata, the black beautyberry, is the Mexican cousin of the familiar American beautyberry, a deciduous shrub of arching branches that, in fall, lines the stems with clusters of small, shiny berries in glossy black rather than the usual purple. The dark fruit is a quiet, sophisticated turn on the beautyberry idea, set off by the green leaves and lingering into the cool months.
Callicarpa americana 'Bok Tower' is the white-fruited form of the American beautyberry, swapping the species' electric magenta for clusters of clean, pearly white berries that ring the arching stems in late summer and fall. The pale fruit is cool and luminous, lovely against the green leaves and a striking foil to the purple-berried kinds, and just as good for the birds.
Callicarpa formosana, the Taiwan beautyberry, is a handsome deciduous shrub that lines the stems with vivid purple berries in fall, the clusters glowing against the fading leaves for strong late-season color. Native to Taiwan and southern China, the Taiwan beautyberry is built for warm climates and keeps a fuller, more robust frame than the smaller Asian beautyberries.
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.
Pine-leaved bottlebrush earns the name honestly: the foliage is fine, stiff, and needle-like, closer to a young pine than to the broad leaves of most bottlebrushes, and the whole shrub stands upright and a little spare, which is part of the charm. Native to southeastern Australia, this species is uncommon in cultivation in the southern United States, so growing one is a small act of plant collecting.
