'Tosca' is the offspring of a rare and deliberate cross, a marriage of Hibiscus paramutabilis, the regal, large-flowered species of southeastern China, with Hibiscus syriacus, the familiar Rose of Sharon of countless summer gardens. From that union comes a woody shrub that carries the best of both parents: the scale and drama of the Chinese species and the toughness and reliability of the old dooryard favorite.
Hosta 'Tardiflora' announces the best trait in the name itself: tardiflora means late-flowering, and this small Japanese hosta is very nearly the last of the tribe to bloom, lifting lavender flowers in fall when most hostas have already finished and begun to tire. The plant traces back to the wild Hosta longipes, the long-stalked giboshi of Japan's rocky mountain slopes, where the species clings to cliffs and streambanks; 'Tardiflora' is a distinct, late seedling form long grown as a garden plant in its own right.
Hosta yingeri is one of the more recent hostas to reach gardens and one of the most distinct, a species found only on a scatter of rocky islands in the Huksan Archipelago off the southwestern coast of Korea. The American plantsman Barry Yinger collected the plant on Taehuksan Island in 1985, and the botanist Samuel B. Jones formally named the species in 1989 in Yinger's honor. For a genus most gardeners associate with the woodlands of Japan, this Korean islander broadened the family map.
'Mariesii' is a piece of hydrangea history still in commerce. In the late 1870s the English plant hunter Charles Maries, collecting in Japan for the famous Veitch nursery, sent home the first lacecap hydrangea to reach the West, at a time when European gardeners knew only the round mopheads. That introduction, named 'Mariesii' in his honor, opened Western eyes to the wild, flat-topped grace of the lacecap and became the parent of a whole line of classic cultivars, among them 'Mariesii Grandiflora', 'Mariesii Lilacina', and the blue 'Mariesii Perfecta'.
The oakleaf hydrangea is the great four-season native shrub of the American Southeast, and 'Alice' is one of the grandest selections of the species. Hydrangea quercifolia grows wild in the rich woods and ravines of a small range centered on Alabama and Mississippi, where the naturalist William Bartram found the shrub in the 1770s and called it singular and beautiful. Alabama later made the oakleaf hydrangea the official state wildflower, a rare honor for a plant that earns attention in every season.
'Alison' is a sister selection to the famous 'Alice,' both drawn from the same native species by the same discerning eye. Hydrangea quercifolia, the oakleaf hydrangea, grows wild in the rich woods of a small Southeastern range centered on Alabama, where the naturalist William Bartram admired the shrub in the 1770s and where the oakleaf now serves as Alabama's official state wildflower. Of all the native shrubs of the region, few offer so much across so many seasons.
Hydrangea serrata 'Woodlander' is a Woodlanders introduction with a story, a compact, small-leaved mountain hydrangea grown from seed collected at the Chollipo Arboretum in Korea and selected here for real garden charm. Daintier than the big bigleaf hydrangeas, this is a refined shrub of two to four feet, carrying flat lacecap flower heads of clear blue in acid soil, ringed with showy sterile florets around a center of tiny fertile ones. The serrated leaves take on a handsome purplish cast that deepens toward autumn.
Few native bulbs command a wet margin the way Hymenocallis liriosme does. From a basal fountain of arching, strap-shaped, glossy green leaves rise leafless scapes, each crowned with several large white flowers whose narrow segments splay outward like pale spider legs around a central membranous cup. The fragrance arrives at dusk, sweet and carrying, a signal to the night-flying moths that pollinate the blooms in late spring and early summer.
Hypericum densiflorum earns the name densiflorum, densely flowered, in high summer, when the twiggy shrub disappears under rounded clusters of small golden flowers, each one a starburst of fine stamens above five clean yellow petals. Bees work the blooms from July into September, and as the show fades the narrow dark green leaves turn a warm yellow, giving way in winter to reddish, lightly peeling bark on the older stems.
Hypericum edisonianum is a Florida endemic with an upright, colony-forming habit, sending up reddish-brown stems clothed in small, leathery, gray-green leaves and topped in the warm months with four-petaled yellow flowers, each brushed with a dense tuft of stamens. As the stems age the bark peels away in thin strips, a subtle textural detail on a shrub that spreads by clonal growth into a low thicket.
Hypericum kalmianum is the tidy, cold-hardy member of the clan, a compact rounded shrub barely knee-high, densely branched, with narrow bluish-green leaves set in pairs along curiously four-angled stems. From July into September the plant disappears under bright golden flowers, each a shallow cup filled with a full boss of stamens, the bloom arriving in the heat of summer when the color is most welcome.
Hypericum lissophloeus is the tree among the St. John's Worts, a graceful evergreen that climbs to ten feet or more on slender trunks dressed in smooth, copper-colored bark that peels in thin sheets. The leaves are needle-fine and deep green, so that from a distance the plant reads almost like a small conifer until summer, when small bright yellow flowers scatter along the stems and settle the question of family.
Hypericum lloydii is one of the fine-textured St. John's Worts, a low, wiry evergreen shrub clothed in needle-like leaves so slender that the plant carries a heathery, almost coniferous look. Through the summer the stems light up with showy yellow flowers, each a shallow cup packed with stamens, held above foliage that stays green through the year.
Hypericum myrtifolium is the tidy, blue-leaved member of the group, an evergreen shrub whose small, leathery leaves clasp the stems in neat overlapping ranks and carry a soft glaucous, blue-green cast. In summer the bushy little frame fills with bright yellow flowers, each one a shallow cup brimming with stamens, the show carried on a plant that looks more like a miniature tree than a scrambling subshrub.
Hypericum prolificum lives up to the name, prolific, disappearing each summer under a heavy crop of bright yellow flowers, each three-quarters of an inch to an inch across and stuffed with a golden brush of stamens. The shrub is dense and rounded, with arching branches, narrow shiny leaves, and reddish, exfoliating bark that peels to show paler layers once the foliage thins.
Hypericum stans is the four-petaled member of the family, a small, upright shrub to about three feet with broad, clasping, blue-green leaves and shreddy, peeling bark. Through summer the stems carry bright yellow flowers an inch across, and where most St. John's Worts open five petals, these show four, set in a neat cross above a pair of large leafy sepals.
Woodlanders has long led the way in offering cold-hardy citrus, the kinds that carry fruit well beyond the usual citrus belt, and Ichang Lemon is a favorite of the group. The plant grows as a medium, evergreen small tree with large leaves on winged petioles and thorny branches, opens the fragrant white flowers typical of citrus in spring, and follows with very large, lemon-yellow, fragrant fruit.
Ilex amelanchier is one of the surprises of the genus, a holly that drops the leaves in fall and carries none of the usual prickles. This rare native grows as a tall deciduous shrub or small tree, and the female plants, this one among them, hang dull, matte red berries on unusually long stems, a soft-toned, almost muted display quite unlike the glossy scarlet of a Christmas holly.
Ilex cassine, the dahoon holly, is an elegant evergreen native of the southern wetlands, and this is a fruiting female, the sex that carries the crop of small, glossy red berries. Unlike the fiercely spined American holly, dahoon holds narrow, smooth-edged, bright green leaves that are a pleasure to plant near a path, and in fall and winter the branches string themselves with scarlet fruit against that clean green. Grown as a large shrub or a small tree, dahoon is one of the most useful evergreen hollies for the South.
Ilex cassine, the Dahoon Holly, is one of the most useful evergreen hollies of the South, an upright shrub or small tree with bright green, oval, nearly spineless leaves. Female plants carry heavy crops of small, bright red berries, but this is a male selection, grown not for fruit but as the pollen partner that lets nearby female Dahoons set that red winter display.