A graceful native onion, Allium cernuum, the nodding onion, lifts loose clusters of pink to lavender, bell-shaped flowers that bend over in a soft arc at the top of slender stems, swaying through mid and late summer above tufts of grassy, blue-green foliage. The nodding habit gives the plant a particular charm, and the flowers draw native bees, butterflies, and other pollinators in good numbers.
Hardiness
Zones 4–8
Light
Full Sun / Part Shade
Height
12–18 in.
Spread
6–8 in.
Bloom
Pink
Plant type
Perennial
Traditional use
respiratory support, digestive health, immune support
Korean mountain ash is the unusual member of the clan, a deciduous tree from Korea, recently moved by botanists from Sorbus into the genus Alniaria, with simple, finely toothed, alder-like leaves rather than the compound leaves of the familiar mountain ashes. White flower clusters open in May, and the fall foliage turns warm shades of orange and red.
Sweet almond verbena is grown for one glorious thing above all: scent. From midsummer until hard frost, Aloysia virgata tips every branch with slender spikes of small white flowers that pour out an intoxicating vanilla-almond fragrance, strongest in the late afternoon and evening and carrying clear across a garden. Butterflies and hummingbirds work the spikes all season.
Among the rarest of the serviceberries, Amelanchier nantucketensis is a low, thicket-forming shrub that Eugene Bicknell first described in 1911 from the sandplains of Nantucket, the Massachusetts island whose name the plant carries. Nantucket serviceberry belongs to a small, taxonomically slippery group within the rose family, so closely tangled with neighboring shadbushes that botanists have argued for more than a century over whether this is a true species or a stabilized hybrid. What sets the plant apart is disarmingly small: petals shorter than those of any other serviceberry in the Northeast, often dusted with pollen along their own margins, a quirk called andropetaly that appears nowhere else in the group.
Coastal serviceberry is the compact, low-growing member of a beloved native clan, a small deciduous shrub of the Atlantic coastal plain that spreads gently into colonies and opens clouds of white, five-petaled flowers in early spring, among the first shrubs to bloom as the woods wake.
Amelanchier x grandiflora is the apple serviceberry, a naturally occurring cross between two eastern natives, the downy serviceberry and the smooth Allegheny serviceberry, and 'Autumn Brilliance' is the selection that made the group famous. The Illinois nurseryman Willet Wandell found this seedling in his Urbana nursery and introduced the plant to gardens in 1986 under U.S. Plant Patent 5,717, choosing the seedling above all for the blaze of autumn color behind the name. Decades on, 'Autumn Brilliance' remains the most widely planted serviceberry in the trade, prized for a vigorous, gracefully branched frame and reliable good looks in every season.
Apple serviceberry, Amelanchier x grandiflora, is the graceful natural hybrid of two eastern native serviceberries, the downy and the smooth Allegheny, and 'Princess Diana' is among the loveliest selections of the group. The plant appeared in a cultivated garden in Elm Grove, Wisconsin in the mid-1980s and was granted U.S. Plant Patent 6,041 in 1987, chosen for a wide, gracefully spreading canopy, generous white bloom, and fall color that arrives early and holds late. Where many serviceberries grow stiffly upright, 'Princess Diana' reaches outward, a small tree with the airy, layered poise the name suggests.
Smooth false indigo is a rare deciduous shrub of sandy southern streambanks, carrying pinnate, compound leaves whose leaflets are notably large and rounded, a softer, more luxuriant texture than the ferny foliage of the common false indigos. In early summer the branch tips raise slender spikes of tiny blue to purple flowers, each lit with the bright orange anthers typical of the genus.
Threadleaf bluestar is grown for two seasons at once: a haze of soft, powder-blue stars in late spring, and a billow of fine, needle-thin foliage that turns a blazing clear gold in fall. Native to the Ouachita Mountains of central Arkansas, Amsonia hubrichtii forms a large, dense, shrub-like clump of upright stems clothed in those threadlike leaves, and the autumn color alone earns a place in any sunny border.
Most bluestars are smooth, cool customers; Amsonia ludoviciana is the outlier of the group. The Louisiana bluestar belongs to the dogbane family, Apocynaceae, and shares the clan's five-petaled, star-shaped flowers and milky sap, but the leaves set the species apart: narrow and willowy, and unusually clothed beneath with a grey-white felt, a woolly tomentum that catches the light and lends the whole plant a soft, silvered cast rare in the genus. In spring, clustered flowers of a clean sky-blue open at the tips of the upright stems, quiet and steely and worked over by the first butterflies of the season.
Dwarf bluestar is the compact, well-behaved member of the clan, a tidy mound of upright stems and soft green leaves topped in late spring with clusters of powder-blue, star-shaped flowers. Often treated as a low form of the eastern bluestar, Amsonia montana stays small and shapely, a fine choice where the taller bluestars would sprawl.
Eastern bluestar is the bluestar most gardeners know, a robust native perennial with broader, willowy oval leaves and the clear blue, star-shaped flowers that name the genus, carried in clusters at the stem tips in spring. Amsonia tabernaemontana grows happily in deep, moist soil in part shade, and rewards almost any reasonable site with bloom and easy good health.
Flame acanthus, better known as hummingbird bush, is a tough, airy deciduous shrub for hot, dry places, hung from late spring until frost with slender orange to red tubular flowers that ruby-throated hummingbirds cannot resist. Small, pointed leaves give a light, open texture, and the long bloom season makes Anisacanthus wrightii one of the best hummingbird plants for the southern garden.
A pumpkin-orange selection of the classic flame acanthus, Anisacanthus wrightii 'Pumpkin' trades the usual scarlet for warm, glowing orange, lighting the late-season garden with the same slender, tubular, hummingbird flowers. The clone was discovered at the San Antonio Botanic Garden and is generally taken to be the selection known as 'Pumpkin'.
Few spring sights stir the woodland gardener like wild columbine in bloom. Aquilegia canadensis hangs nodding red-and-yellow bells, spurred and lantern-like, over lacy blue-green foliage, catching the low light of April along forest edges, rocky outcrops, and Appalachian coves where the plant has grown for ages. The eastern red columbine, or simply wild columbine, is among the most beloved of native spring wildflowers.
The strawberry tree is a handsome broadleaf evergreen, a large shrub or small tree hung in fall and early winter with clusters of nodding, urn-shaped, pinkish-white flowers, just as the previous year's fruit ripens to warty, orange-red, strawberry-like globes. Flowers and fruit on the branches at once is the particular charm of Arbutus unedo, and the glossy leaves and shredding cinnamon bark hold interest year round.
Hardiness
Zones 7–9
Light
Full Sun / Part Shade
Height
15–25 ft.
Spread
10–15 ft.
Bloom
White
Plant type
Shrub
Traditional use
detoxification & cleansing, digestive health, heart support
A hybrid strawberry tree, Arbutus x andrachnoides crosses the strawberry tree, Arbutus unedo, with the Grecian strawberry tree, A. andrachne, and takes the best of both: white, bell-shaped flowers and pink, strawberry-like fruit on a small evergreen tree, over dark green leaves an inch and a half to four inches long. The real prize comes with age, when the bark peels away to a smooth, rich red-brown that rivals any madrone.
Aronia arbutifolia has grown in the wet woods and pocosins of the eastern United States for a very long time, largely unbothered by the horticultural world's attention. 'Brilliantissima' changed that. Selected for foliage with a deeper gloss and berries of a more saturated, almost lacquered red than the straight species, this is the form that finally made gardeners look twice at a native shrub long overlooked despite centuries of quiet usefulness.
Swamp milkweed brings beauty and biodiversity to the moist garden. Asclepias incarnata is a native perennial prized for domed clusters of rosy pink, vanilla-scented flowers and for a vital role in feeding pollinators, native to wet meadows, streambanks, and lowland prairies across much of North America. The plant takes happily to rain gardens, wet soils, and sunny borders alike, a natural for the ecologically minded gardener.
The white-flowered form of swamp milkweed, Asclepias incarnata 'Ice Ballet' carries the same upright, well-mannered habit as the species but trades rosy pink for clusters of pure, cool white, held atop sturdy three-to-four-foot stems through summer. The effect is fresh and luminous in a moist border, and just as useful to wildlife.
