1316 plants in this collection
Podranea ricasoliana, the pink trumpet vine or Port St. John's creeper, is a fast-growing evergreen climber from the warm regions of South Africa, a member of the trumpet-creeper family, Bignoniaceae, prized for showy, trumpet-shaped flowers.
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.
Poliomintha longiflora is one of the several aromatic plants that go by the name Mexican oregano, and one of the prettiest, a small evergreen shrub that flowers for months and seasons the pot besides. Slender, aromatic leaves clothe a rounded bush two or three feet high, and from spring well into fall the branches carry long, tubular flowers in soft lavender and pink, a steady supply of nectar in the heat when little else blooms.
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Polygala x dalmaisiana, the sweet pea shrub, is a fast-growing evergreen hybrid of two South African species (P. oppositifolia and P. myrtifolia), grown for a nearly year-round show of orchid-like flowers on an open, informal frame.
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.
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.
Polyspora axillaris, the fried egg tree, is a glossy, small evergreen tree or large shrub of the tea family, Theaceae, native to southern China, Taiwan, and Vietnam and still rarely cultivated in the United States. A close relative of the native loblolly bay (Gordonia lasianthus), the plant bears abundant, showy white flowers three inches across.
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.
Picture a midnight-green fountain unfurling in a woodland garden: that is Polystichum polyblepharum, the Japanese tassel fern. Native to Japan and South Korea, this evergreen fern forms elegant, shuttlecock-shaped clumps of glossy, bipinnate fronds to eighteen or twenty-four inches tall and wide, bringing shimmering texture and structure to shady corners. In spring the fiddleheads twist back on themselves, like silk tassels, before straightening into perfectly arching blades, lending a touch of theatrical grace to the early-season garden.
The procimequat is a rare and fascinating citrus hybrid, born from a botanical marriage of the Eustis limequat (itself a cross of kumquat and lime) and the Hong Kong kumquat (Fortunella hindsii). The result is a precocious, compact plant that combines the zesty lime tang of the limequat parent with the tiny, ornamental charm of the wild kumquats, all on a frame small enough for a patio pot.
Before European settlement reshaped the eastern landscape, Prunus americana was a fixture at the forest edge: thicket-forming, thorny, and extravagantly beautiful in early spring when the plum covered itself in white flowers before the leaves had even stirred. The Lakota knew the plum as kañta, the Cherokee as gunasdv, and across dozens of nations from the Great Plains to the Appalachians the tree was considered a plant of genuine importance. The fruits were eaten fresh, dried into cakes, and worked into pemmican, the dense, calorie-rich mixture of dried meat, fat, and fruit that sustained people through long winters and longer journeys. The inner bark was used medicinally, and the dense, close-grained wood was worked into tools. This was not an ornamental plant in the minds of the people who knew it first. The plum was a resource, in the fullest sense.
A native plum with a longer human history than any other fruit in North America. Prunus angustifolia, the Chickasaw plum, also called Cherokee plum, sand plum, sandhill plum, or Florida sand plum depending on the part of the range you are standing in, was actively cultivated by Indigenous peoples across the southeastern and central United States long before European contact. The Chickasaw, Cherokee, and several other nations carried the species in their orchards and food gardens, dried the fruit for winter storage, and almost certainly moved the plant eastward through pre-Columbian trade networks from what botanists now believe to be the species' true origin further west. The species was so deeply associated with Indigenous cultivation by the time European naturalists arrived that the binomial angustifolia, narrow leaf, eventually displaced earlier names like P. chicasa in formal taxonomy, though the common names kept the tribal attribution. Kansas made the plant its official state fruit in 2022. Few American native fruits carry their human history this visibly.
Prunus caroliniana, the Carolina cherry laurel, is a fast, dense broadleaf evergreen native to the coastal plain of the southeastern United States, from North Carolina to Texas. The glossy, deep green, finely toothed leaves and tight, upright habit make the tree one of the South's most useful evergreen screens, and the crushed foliage carries the sharp almond, maraschino-cherry scent that marks the genus.
'Kojo no mai' is a small cherry with a large personality, a dwarf Fuji cherry grown as much for the winter silhouette as for the spring flowers. The stiff, twiggy branches grow in sharp zig-zags, crooking this way and that into a dense, architectural little bush, and in early spring, before the leaves, those bare zig-zag stems line themselves with single flowers, pink in bud and opening to white and blush. The Japanese name translates, fittingly, as flight of butterflies.
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.
The English laurel is a large broadleaf evergreen shrub grown for bold, glossy foliage, spires of small white flowers, and, at times, small cherry-like red-to-black fruits. The species is variable, with a number of cultivated forms, and the plant is native to eastern Europe and Asia Minor.
Portugal laurel is the evergreen that quiet, well-run gardens lean on, a dense, glossy, dark-leaved shrub that Hillier's manual once flatly called indispensable. The oval leaves are a deep lustrous green, carried on wine-red petioles and reddish young stems that give the whole plant a warm undertone, and in early summer slender racemes of small, fragrant, creamy-white flowers stand out against the dark foliage before ripening to little cherries that pass from red to near-black.
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.
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.
