Plants with a story that begins in Japan. This collection gathers the trees, shrubs, and perennials of Japanese origin and heritage, from garden classics refined over centuries to the wild species behind them.
Ilex 'Sparkleberry' is the aristocrat of the winterberries, a vigorous hybrid holly bred from the native winterberry, Ilex verticillata, and the Japanese winterberry, Ilex serrata, and introduced by the U.S. National Arboretum. The cross brought hybrid vigor and a heavier, longer-holding crop: tall, upright stems that shed their leaves in fall and blaze with bright red fruit, persisting so well that the berries often hang on into spring.
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.
Salix chaenomeloides, the Japanese pussy willow, is a fast-growing shrub or small tree native to Japan, Korea, and parts of China, long valued in East Asian gardens for the show the plant makes in the depths of winter. Well before the leaves break, the bare branches set fat, silvery-white catkins with a soft, velvety nap, the largest and most striking of any pussy willow, and the branches are cut by the armful for early-spring arrangements.
For a week or two in late spring, the Chinese fringetree disappears under snow. Chionanthus retusus var. serrulatus is a deciduous small tree of East Asia, native to China, Korea, and Japan, and the great show is the flowering: dense, lacy, fringed panicles of pure white, each petal narrow and strap-like, smothering the canopy so thickly that the foliage all but vanishes. The genus name says as much, from the Greek chion, snow, and anthos, flower.
The Japanese clethra is grown for bark as much as bloom. Clethra barbinervis is a tall, tree-like deciduous shrub or small tree from the mountains of Japan and Korea, carrying somewhat fragrant terminal racemes of white flowers in summer, in the same sweet-scented family as the native summersweets. But the real distinction is the bark: smooth and polished, gray to warm brown, and exfoliating in age to a handsome patchwork that makes this one of the finest small trees for the winter garden.
Distylium racemosum is the type species of the genus and the most tree-like of the isu trees, an evergreen member of the witch-hazel family, Hamamelidaceae. The genus name comes from the Greek for "two styles," for the paired styles at the center of each small flower, while the species epithet racemosum notes the short racemes along which those flowers are held.
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.
Ilex integra is the holly for people who do not think they like hollies, an evergreen tree from Japan whose leaves carry no spines at all. The dark green foliage is smooth-edged, glossy, and thick, giving a clean, almost magnolia-like calm, and on female trees the show comes in fall and winter, when bright red berries gather along the branches against the deep green.
Ilex mutchagara is a quiet, graceful evergreen holly from Okinawa, close enough to the familiar Japanese holly, Ilex crenata, that some botanists treat it as a form of that species. The small, glossy, dark green leaves carry fine teeth along the edges but no spines at all, and the habit is open and airy rather than dense, giving the shrub a lighter, more relaxed look than the tightly sheared boxwood-substitutes it resembles.
Ilex 'Raritan Chief' is a male winterberry with a long working day. A compact hybrid of the native winterberry, Ilex verticillata, and the Japanese winterberry, Ilex serrata, this deciduous holly was bred as a pollinizer rather than a show plant, and a long bloom season makes 'Raritan Chief' one of the most flexible pollinizers in the group.
The horticulturist Scott Ogden, in Garden Bulbs for the South, sets the scene: the Japanese roof iris, Iris tectorum, is famous in the native country as a flower for planting on sod roofs, just as houseleeks are used on the cottage roofs of France. In gardens the silky green fans of leaves form large patches, a fine subject for the foreground of a shady border, and in April the ruffled, orchid-like blooms appear among the handsome leaves. In the common form these are a rich mottled blue with white crests; even lovelier, Ogden adds, are the white, yellow-crested blooms of the form offered here.
The horticulturist Scott Ogden, in Garden Bulbs for the South, sets the scene: the Japanese roof iris, Iris tectorum, is famous in the native country as a flower for planting on sod roofs, just as houseleeks are used on the cottage roofs of France. In gardens the silky green fans of leaves form large patches, a fine subject for the foreground of a shady border, and in April the ruffled, orchid-like blooms appear among the handsome leaves. This is the common form, in which the flowers open a rich mottled blue, veined and freckled toward the center, with white crests.
Among crape myrtles, Lagerstroemia fauriei is the aristocrat grown as much for bark as for bloom. A small, multi-stemmed, deciduous tree from Yakushima Island in southern Japan, first brought to botanical attention in the 1950s, the species reaches a graceful twenty-five to thirty-five feet with a rounded, vase-shaped crown. The summer flowers are white, carried in airy terminal panicles that are smaller and more delicate than the heavy trusses of the familiar Lagerstroemia indica.
Magnolia stellata 'Royal Star' is the star magnolia at its best, a hardy, rounded shrub that opens its first flowers at the very end of winter, well before the leaves, in a froth of white, many-petaled stars. Each bloom carries a dozen or more narrow, strap-like tepals that give a soft, feathery look, and the whole plant can vanish under bloom in a good year, sweetly fragrant into the bargain.
The Meiwa kumquat is the sweet one, the kumquat you can pop whole into your mouth and eat skin and all. A small, tidy, evergreen citrus, Fortunella crassifolia carries round, bright orange fruit a little over an inch across, and where most kumquats offer a sweet rind wrapped around sharply sour pulp, the Meiwa softens the contrast: the peel is thick and honey-sweet, the flesh only mildly tart, so the whole fruit eats like candy off the branch.
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.
Polygonatum odoratum 'Variegatum', the variegated Solomon's seal, is one of the most graceful of all shade perennials, an Old World cousin of the native Solomon's seals grown for luminous, cream-edged foliage on arching stems. Each lance-shaped leaf carries a soft green center rimmed and streaked in creamy white, and the new stems flush a warm rose before greening.
Hardiness
Zones 4–9
Light
Part Shade / Full Shade
Height
1–2 ft.
Spread
1–2 ft.
Bloom
White
Plant type
Perennial
Traditional use
respiratory support, pain relief, digestive health, general wellness
Prunus japonica, the Japanese bush cherry or Japanese almond-cherry, is a compact deciduous shrub grown for an early flood of delicate pink-to-white bloom. Wiry branches carry dense clusters of five-petaled flowers just as the leaves appear, wrapping the low, rounded frame in soft color in early to mid spring.
Prunus mume, the Japanese flowering apricot, is one of the most beloved of all winter-flowering trees, opening almond-scented blossoms in the depths of winter, from soft white to deep pink, on bare branches while the rest of the garden sleeps. In China and Japan the mei or ume has been celebrated in poetry and painting for well over a thousand years as a symbol of resilience and the turning of the year.
Hardiness
Zones 6–9
Light
Full Sun / Part Shade
Height
18–25 ft.
Spread
12–18 ft.
Bloom
Pink
Plant type
Tree
Traditional use
respiratory support, digestive health, general wellness
Prunus mume 'Peggy Clarke' is a selection of the Japanese flowering apricot, a medium-sized deciduous tree grown above all for showy, deeply fragrant blossoms that open in the depths of winter when few other trees are in flower. 'Peggy Clarke' bears rich rose-pink, double, cup-shaped flowers, ruffled and fragrant, crowded along the bare branches in late winter and early spring.
Hardiness
Zones 6–9
Light
Full Sun / Part Shade
Height
15–25 ft.
Spread
12–15 ft.
Bloom
Pink
Plant type
Tree
Traditional use
respiratory support, digestive health, general wellness
