The garden under the canopy. Shade is not a problem to solve but a place to plant, and these are the ferns, foliage plants, and quiet bloomers that make the cool, dim ground beneath trees and walls into one of the loveliest parts of a garden.
The southern maidenhair has a way of choosing impossible places. Look for this fern on a shaded limestone bluff where water seeps through the rock, or in the spray zone of a spring-fed creek, and you will likely find the fronds growing sideways out of a crevice as if that were the most natural thing in the world. The wiry black stems hold up fan-shaped pinnules so thin they seem almost translucent in morning light, and the whole plant trembles at the slightest breath of air. Few native ferns carry this much delicacy with so little fuss.
True cardamom, Elettaria cardamomum, is a lush, aromatic member of the ginger family and the source of green cardamom, the ancient and costly spice traded for millennia along the Silk Road and across the Indian Ocean. Native to the humid, evergreen hill forests of southern India and Sri Lanka, the plant grows in the dappled shade of the understory, in deep, fertile, always-moist soil. Ranked historically among the most valuable spices in the world, cardamom carries a history as rich as the flavor.
Hardiness
Zones 8–10
Light
Part Shade / Full Shade
Height
6–12 ft.
Spread
3–6 ft.
Bloom
White
Plant type
Perennial
Traditional use
digestive health, respiratory support, general wellness
For a plant this common, the Christmas fern carries an oddly specific origin for the name. The fern was christened, the story goes, by one John Robinson, a botany professor at the Peabody Academy in Salem, Massachusetts, sometime in the late 1800s, and set down for posterity in a 1923 volume with the irreproachable title The Fern-Lover's Companion. Robinson's reasoning was seasonal. When the other ferns of the eastern woods go brown and crisp at the first hard frost, Polystichum acrostichoides holds green straight through December, which made the plant the fern people cut for wreaths and mantels at Christmas. There is a second theory, quieter and harder to settle, that the name comes from the leaflets themselves: look closely and each pinna carries a small lobe at its base, an ear or a thumb, that gives the leaflet the outline of a Christmas stocking. Both camps are probably right.
Hardiness
Zones 4–9
Light
Part Shade / Full Shade
Height
1–2 ft.
Spread
1–2 ft.
Plant type
Fern
Traditional use
pain relief, respiratory support, digestive health
Rohdea japonica, the sacred lily or Nippon lily, is a bold, slow, tufted evergreen perennial grown above all for foliage, and this selection carries the darkest leaves of all, an almost black, glossy green that anchors a shaded planting through the whole year and lights up a winter landscape when little else holds. Rather sizeable red berries ripen in tight clusters, half-hidden at the base of the leaves, a quiet second season for anyone who looks closely.
This plant is a botanical time machine. Sarcandra glabra belongs to the Chloranthaceae, a flowering-plant family with only four surviving genera worldwide and a fossil record reaching back into the Early Cretaceous, more than a hundred million years ago. Pollen and floral fossils of the Chloranthaceae are among the earliest evidence of flowering plants anywhere on Earth, and the family was already abundant when the dinosaurs were only in their middle age. Today Sarcandra is one of just four genera left from a lineage that once spread across what is now Portugal, Spain, and eastern North America, and most of that Cretaceous diversity is gone. The little plant in the garden is a quiet survivor of a family that mostly did not make it.
In the cool hush of shaded woods, Adiantum pedatum rises on slender, glossy black stems that hold the lacy green fronds in flattened semicircles, each a hand-turned fan or horseshoe of finely cut segments. Standing twelve to thirty inches tall, the northern maidenhair forms serene clumps that spread slowly on creeping rhizomes, never in a hurry. In early spring the fiddleheads emerge a rosy to burgundy hue and uncurl into the distinctive bird's-foot, palmately branched leaves that give the fern such grace.
The uncommon white-berried form of coral ardisia, Ardisia crenata 'Alba' is a small, neat evergreen shrub of glossy, scallop-edged dark green leaves, hung in fall and winter with clusters of round white berries in place of the usual coral red. The pale fruit and shining foliage give a long season of quiet interest, indoors in a bright room or out in a shaded, frost-free garden.
Ardisia japonica 'Hakuokan' is a jewel of the Japanese shade garden, a low evergreen groundcover whose small, glossy, leathery leaves are edged in a clean band of creamy white. The green species, called yabukoji in Japan and marlberry in English, has grown wild in the woodland understory of Japan, Korea, China, and Taiwan for ages, spreading quietly by underground runners into knee-low colonies. 'Hakuokan', a name that reads roughly as white royal crown, is a variegated selection prized by collectors, slower and more compact than the plain species and all the more luminous for the pale margin that catches light in a dim corner.
Ardisia japonica 'Hinode' is a variegated form of the Japanese marlberry, each glossy, dark green leaf marked with a broad gold band down the center. Low and slowly spreading, this evergreen carpets shaded ground at eight to twelve inches, lit by the gold variegation and dotted in fall with bright red berries that hold into winter.
Paper bush, Edgeworthia chrysantha, spends the growing season as a quiet, blue-green shrub and saves the show for the dead of winter. In late winter and earliest spring, while the branches are still bare, the shrub hangs rounded, downward-facing clusters of small tubular flowers from the tips of every stem, silvery-furred buds opening to warm yellow throats that carry a sweet, daphne-like fragrance across cold air. A cousin of Daphne and the native leatherwood Dirca in the family Thymelaeaceae, paper bush shares the tribe's supple, hard-to-snap branches and honeyed scent.
In the dappled understory of the Eastern woods, Geranium maculatum has made a home for as long as the forests have stood. Known to generations as wild geranium or cranesbill, this native perennial forms a tidy clump of softly lobed leaves and lifts loose sprays of rose-purple, five-petaled flowers, as much a part of the old spring landscape as dogwood and trillium.
Kerria is a monotypic genus, a single species that stands alone in the rose family (Rosaceae), native to the mountain woodlands of China and Japan. The old-fashioned kerria has bright green, arching stems and toothed leaves, and in spring the branches light up with flowers that in the common double form look like tiny golden roses. The genus honors William Kerr, the Kew plant hunter who sent the double-flowered form back to England from Canton in the early 1800s, and in Japan the plant is beloved as yamabuki, a name woven through centuries of poetry celebrating that spring yellow.
William Kerr arrived in Guangzhou in 1803 as the first professional plant hunter posted permanently in China, dispatched by Sir Joseph Banks and the Royal Botanic Gardens at Kew to send back whatever the southern port cities could offer. Among his returns was a double-flowered shrub with bright yellow, pompon-like blooms, gathered from cultivation and shipped to Kew in 1805. The genus was eventually named Kerria in his honor. His later years were less distinguished, marked by an opium habit and a thinning correspondence, and he died in Ceylon in 1814. The double-flowered form he introduced, 'Pleniflora', went on to become one of the most common shrubs in Victorian gardens, present in nearly every collection of the era and still widely planted today.
Osmunda regalis, the royal fern, is a plant of stature and quiet nobility, at home where the woods remember water and time moves slowly. The genus Osmunda gives its name to an ancient family, the Osmundaceae, sometimes called the flowering ferns, with a fossil lineage that reaches back past the Jurassic; a royal fern in the garden is a living relic of a far older flora. The natural range runs from Nova Scotia to Florida in North America, and on through Europe, Africa, and Asia, making this one of the most widely distributed ferns on earth. Both the common name and the Latin regalis salute the same quality: among the largest and most robust of all North American herbaceous plants, the royal fern reaches four to six feet where truly content.
Hardiness
Zones 3–9
Light
Part Shade / Full Shade
Height
3–6 ft.
Spread
3–4 ft.
Plant type
Fern
Traditional use
pain relief, topical applications, respiratory support
A spring-blooming native of the eastern woodlands, found from Ontario and Quebec south through the Appalachians and as far west as Minnesota and Oklahoma, growing on rich deciduous forest floors, along streambanks, and at the bases of sandstone canyons. Polemonium reptans is one of those native plants that rewards close attention. The leaves are pinnately compound, with seven to twenty-one paired leaflets running up each stem like the rungs of a ladder, the source of the common name, which gestures all the way back to the biblical Jacob and his dream of a stairway to heaven. The genus name is older still: Polemonium honors King Polemon of Pontus, an ancient Greek ruler with a side interest in herbalism.
Hardiness
Zones 3–8
Light
Part Shade / Full Shade
Height
1–2 ft.
Spread
1–2 ft.
Bloom
Blue
Plant type
Perennial
Traditional use
respiratory support, detoxification & cleansing, topical applications, general wellness
Polygonatum commutatum, the great or giant Solomon's seal, is a bold native perennial of the eastern North American woodlands, sending up tall, unbranched, gracefully arching stems clad in broad, oval, alternate leaves. From the leaf axils along the underside of each stem hang small, creamy-white, bell-shaped flowers, usually in pairs, in late spring and early summer.
Hardiness
Zones 3–8
Light
Part Shade / Full Shade
Height
3–5 ft.
Spread
1–2 ft.
Bloom
White
Plant type
Perennial
Traditional use
pain relief, digestive health, respiratory support, general wellness
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
Pyrrosia lingua 'Kei Kan' is a fern for people who think they do not like ferns. Nothing here is lacy or feathery. The fronds are thick, leathery, and strap-shaped, and in this selection the tips fork and crest into ragged, comb-like divisions, the feature that earns the Japanese name Kei Kan, meaning cockscomb. The overall effect is closer to a piece of green leather sculpture than to the soft filigree most people picture when they hear the word fern.
Ruscus aculeatus, Butcher's Broom, is a low evergreen shrub of the asparagus family, native to the woodlands of southern Europe, the Mediterranean, and the Middle East, and reaching north into the milder parts of the British Isles. What look like glossy, spine-tipped leaves are not leaves at all but flattened stems called cladodes, which take over the work of photosynthesis while the true leaves are reduced to tiny scales. The generic name comes from the Latin ruscum, the old word for a butcher's broom, and the epithet aculeatus means prickled, for the sharp point that tips each cladode.
Among the winter-flowering shade shrubs, few reward a cold-season garden as generously as Sarcococca wallichii, the Himalayan sweet box. The genus name joins the Greek sarco, flesh, with kokkos, berry, a nod to the fleshy fruits that follow the flowers, while the species honors Nathaniel Wallich, the Danish surgeon-botanist who superintended the Calcutta botanic garden in the early nineteenth century and sent so many Himalayan plants west. Sarcococca belongs to the box family, Buxaceae, and shares that clan's patience: dense, slow, and evergreen, with the quiet good manners of a plant built for the long haul.
