The purple firespike answers a quiet complaint of the warm-climate gardener, that the tropical border runs to reds and hot corals and forgets the cooler end of the spectrum. Odontonema callistachyum carries erect spikes of tubular, lavender-to-amethyst flowers at the tip of nearly every branch, each spike lengthening to almost a foot as the buds open in succession from fall into spring. The genus name joins the Greek odous, a tooth, with nema, a thread, for the small toothed filaments within the bloom, while the epithet callistachyum means, simply and accurately, beautiful spike. The leaves are broad, glossy, and faintly fleshy, a lacquered dark green that holds the plant together as a handsome mound even between flushes.
Few plants light a shaded corner the way firespike does. Odontonema strictum raises erect spikes of slender, tubular, scarlet flowers to a foot long from late summer into winter, each spike a torch held above dark, glossy, quilted foliage. The genus name pairs the Greek odous, a tooth, with nema, a thread, for the toothed filaments inside the bloom, and the plant answers to a tangle of common names, firespike, cardinal's guard, and firestick among them, though firespike is the one that sticks.
Sundrops make a gentle joke of their family. Oenothera fruticosa ssp. glauca belongs to the evening primroses, a tribe famous for opening at dusk and closing by mid-morning, yet the sundrops break ranks and bloom by day, holding cups of clear, satiny yellow wide open through the sunlit hours of late spring and early summer. The genus name comes from the Greek oinos, wine, and thera, to hunt or seek, an old and disputed reference to a European relative whose roots were once thought to give a taste for wine; the epithet fruticosa means shrubby, for the firm, upright stems, and glauca notes the blue-green bloom on the foliage.
A true olive for the shade, Olea yunnanensis is the sort of plant that rewards the gardener who reads labels twice. The genus is the olive genus, kin to the ancient Mediterranean fruit tree and to the sweet olives and privets of the same family, yet this species hails from the mountains of Yunnan in southwestern China rather than the sun-baked hills of the Old World. The narrow, leathery, dark green leaves carry an unmistakable Osmanthus cast, glossy above and paler beneath, and build into a dense, rounded evergreen canopy that holds the year.
Devilwood earns the odd name honestly. Osmanthus americanus carries a wood so cross-grained and stubborn that early woodworkers swore the timber was possessed, and the name has stuck for centuries, a small piece of American folklore hung on an otherwise gracious plant. The leaves are leathery, elliptical, and smooth-margined, a deep glossy green without the spines that arm so many tea olives, and they build into a dense, rounded evergreen of fifteen to twenty-five feet, handsome as screen, understory, or small tree.
Osmanthus armatus, a rare gem from the evergreen forests of western China, brings both elegance and resilience to the garden. This large, multi-branched shrub is known for thick, lustrous, dark green leaves adorned with prominent marginal and terminal spines, reminiscent of holly.
Some plants are grown for the eye and some for the nose, and sweet osmanthus belongs wholly to the second camp. The very name tells the story: Osmanthus joins the Greek osme, a scent, with anthos, a flower, and fragrans doubles down, so the botanical name reads almost as fragrant fragrant-flower. The blooms themselves are tiny, waxy, and creamy white, tucked so far back among the leaves that a passerby often smells the plant long before finding the flowers, a warm apricot-and-honey perfume that carries across a whole garden on a mild autumn day.
For all the sweet osmanthus grown across the South, most carry the same tiny white flowers, so 'Conger Yellow' arrives as a quiet surprise: a clone bearing clusters of soft, butter-yellow blooms against notably large, glossy leaves. The flowers keep the family gift, that warm apricot-and-honey perfume that drifts on autumn air and, in mild climates, returns in scattered flushes through much of the year, strongest as evening cools.
'Fudingzhu' turns the usual tea olive up a notch. Where most sweet osmanthus scatter a modest few flowers among the leaves, this selection smothers itself in dense, bead-like clusters of small, creamy-white blooms, so freely and for so long that the name is said to mean pearls upon the Buddha's head, for the way the pale flowers crown the plant. The scent is the pure osmanthus perfume, a rich sweetness of ripe apricot and peach that carries on the evening air.
The orange sweet olive is the tea olive at full volume. Where the common form carries tiny white flowers, Osmanthus fragrans f. aurantiacus bears clusters of deep yellow to burnt orange, and the color comes with an even richer scent, a heady sweetness of ripe apricot and peach that fills a garden on a still autumn afternoon. The blooms open in one great, concentrated flush, brief at perhaps a week or two, but so heavy that the whole plant seems to smoke with fragrance while it lasts.
Grown for the leaf rather than the flower, 'Goshiki' is the most colorful of the holly osmanthus. The name means five colors in Japanese, and the spiny, holly-like evergreen leaves earn it: flecked and mottled with cream and yellow against dark green, and flushed at every new growth with startling pink and orange that slowly settles to gold and green. The species name heterophyllus, from the Greek for different-leaved, fits the whole clan, whose juvenile leaves bristle with holly teeth while older ones smooth to entire margins.
Among the false hollies, 'Rotundifolius' is the gentle contrarian. Where the species arms the youthful leaves with fierce holly spines, this old form lays them down entirely: the leaves are small, thick, and rounded, nearly circular and spineless, a heavy, puckered dark green that reads more like boxwood or a miniature bergenia than an osmanthus. The oddity is the whole appeal, a curiosity that stops a plantsman mid-path.
'Variegatus' brings light to the false holly. The spiny, holly-like evergreen leaves are edged in clean creamy white against a dark green center, so the whole shrub reads as a soft glow at a distance and a crisp, formal pattern up close. The variegation lifts a shaded corner the year round, a quiet luminance that the plain green species cannot offer.
Osmanthus suavis is the mountain member of the sweet olive family, a shrub of quiet, upright grace carried down from high ground. Native to the cool slopes of the eastern Himalayas and the misted forests of southwest China, the plant has the unhurried resilience of alpine flora, and the narrow, pointed, finely toothed leaves, darkly lustrous and neatly held, give a formal, upright presence the year round.
Osmanthus x fortunei 'Natchez' is a hybrid that takes the best of two parents. The cross joins Osmanthus fragrans, the sweet olive treasured for its perfume, with Osmanthus heterophyllus, the false holly valued for tough, spiny, evergreen foliage, and 'Natchez' inherits both gifts: a dense, glossy, holly-leaved frame and a flood of fragrance in fall. The hybrid takes the name of the old river town of Natchez, Mississippi, a nod to the Deep South gardens where these tea olives have long been at home.
Osmanthus x fortunei 'San Jose' is a large, upright member of Fortune's tea olive, the garden hybrid that crosses the false holly, Osmanthus heterophyllus, with the sweet olive, Osmanthus fragrans. Among the fortunei clones, 'San Jose' stands apart for thinner, more finely toothed leaves and a taller, more upright habit, a plant that reaches for height where others spread.
Step into a North American wetlands grove, and you'll find Osmunda cinnamomea, the majestic cinnamon fern, standing tall on fronds that arch with the dignity of cathedral windows. Native to rich, damp woodlands and boggy stream edges across eastern North America, this stately fern thrives in humus-laden soil, the base cloaked in cinnamon-colored fibers that inspired the common name. In spring, the center of each dark green vase unleashes erect fertile fronds, spore-tossing cinnamon sticks that rise above the sterile foliage before maturing to warm, russet brown.
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
In the dim, humid hush of a Southern swamp or the shaded edges of a woodland stream, Osmunda regalis var. spectabilis, commonly known as the American royal fern, stands as a silent monarch. This grandiose fern, native across eastern North America, unfurls towering fronds that burst upward in graceful rosettes, often reaching 3 to 6 feet tall with a spread of 2 to 3 feet. The distinctive, dignified look has earned these ferns the moniker flowering fern, a nod to the upright, spore-laden fertile fronds that crown each spring with tassel-like clusters before maturing to russet-brown.
Osteomeles schweriniae, the bone apple, is a refined evergreen shrub in the rose family, close kin to hawthorn, cotoneaster, and photinia, and a botanical rarity seldom seen in American gardens. The genus name joins the Greek osteon, bone, and melon, apple, a nod to the stony hardness of the little fruits, while the species epithet honors the German dendrologist Count Fritz von Schwerin. Native to the dry valleys and open slopes of Yunnan and western Sichuan in southwestern China, the shrub carries very small, ferny, pinnate leaves along dense, wiry, arching stems, giving a fine texture unusual among broadleaf evergreens.
