Cross-Timbers savanna-woodland

A virtually stemless, broadleaf-evergreen native of central and eastern North America: a basal rosette of rigid, sword-shaped, spine-tipped leaves up to 30 inches long, fringed along the margins with the curly white threads that give the species its name. In early summer a flowering stalk shoots from the center to 5 to 8 feet, carrying nodding, bell-shaped, creamy-white flowers. Tough enough for poor sandy soil, heat, drought, and salt spray, it earns its keep as architectural structure in dry and seaside gardens.

A tall, bold warm-season annual from Mexico and Guatemala (the "African" name is a misnomer of its European garden history) grown for large, fully double, pompon-like flowerheads in saturated yellow, gold, and orange over strongly aromatic, finely divided foliage. Plants reach 1 to 4 feet and bloom from early summer to frost in full sun. The petals are edible and used as a culinary garnish and natural dye, and the flowers are the iconic "flor de muerto" of Mexican Day of the Dead. Despite the wide listed zone range it is frost-tender and grown for a single warm season.

A native eastern + central North American thicket-forming shrub producing arching thorny canes + clusters of large sweet black berries in mid-to-late summer. Among the most important wildlife fruit producers in eastern forests - birds, mammals, + insects all depend on the fruit. Like raspberry, biennial-caned (primocane year 1, fruits in year 2 as floricane, then dies back). Spreads via root suckers + tip-rooting cane tips; manage with annual pruning.

A native Southeastern North American semi-evergreen woodland groundcover (Pachysandra procumbens), prized for its blue-green to bronze mottled leaves and fragrant white-to-pinkish bottlebrush flower spikes that open at ground level in late winter to early spring. Unlike the widely planted invasive Asian Pachysandra terminalis, this native spreads slowly by rhizomes into well-behaved clumping colonies, making it a low, restrained groundcover for shaded native plantings.

A dense, conical-to-narrow-pyramidal evergreen tree native to eastern and central North America, prized as a screening and foundation conifer. Flat, fan-like sprays of scale-like, aromatic yellow-green foliage clothe the tree from the ground up, and red-brown bark exfoliates on mature trunks. Wild trees can reach 40 to 60 feet but cultivated plants typically stay near 20 to 30 feet; small urn-shaped cones and dense evergreen cover make it valuable food and shelter for birds.

A medium-to-large native shade tree of central and eastern North America, reaching 50 to 80 feet with an ovate-rounded crown and large, asymmetric heart-shaped leaves. In June it carries pale-yellow, intensely fragrant flowers on pendulous cymes - each cluster hung from a distinctive strap-like leafy bract - that ripen into pea-sized nutlets. The fragrant June bloom is a premier nectar source: Missouri Botanical Garden lists it as attracting bees and butterflies, and the Lady Bird Johnson Wildflower Center flags it as having special value to both native and honey bees.

American beautyberry (Callicarpa americana) is a loose, open, arching deciduous shrub of the southeastern and south-central United States, grown almost entirely for one spectacular autumn trick. Through summer it is a quiet green background plant, carrying small clusters of pink-to-lilac flowers tucked into the leaf axils. Then, from late summer into fall, those clusters ripen into tight whorls of vivid magenta-purple berries that wrap right around the stems at every leaf joint, so the arching branches look strung with beads. Songbirds strip them through fall and early winter. It is an easy, fast-growing, forgiving native that asks for little: full sun to part shade, ordinary well-drained soil, and room to arch. Site it where the fall berry show can be seen, because in leaf and flower it is plain, and in fruit it is one of the most distinctive shrubs you can grow.

Once the dominant canopy hardwood of the eastern United States forest - an estimated four billion trees, prized for fast growth, rot-resistant timber, and an enormous annual crop of sweet edible nuts that fed people, livestock, and wildlife alike. In the early 1900s an introduced Asian fungus, chestnut blight (Cryphonectria parasitica), swept through and functionally destroyed it: by the 1950s the species was effectively extinct as a mature forest tree. Surviving root systems still send up sprouts from old stumps, but the blight almost always girdles and kills them before they can grow large enough to flower and reproduce. The honest reality for a gardener is that you cannot reliably grow a mature wild-type American chestnut today. The realistic paths are blight-resistant backcross hybrids from The American Chestnut Foundation or transgenic blight-tolerant lines still being deployed - not a pure wild seedling, which the blight will almost certainly kill.

A fast, suckering native shrub of streambanks and moist thickets across eastern North America, grown for huge flat-topped cymes of tiny lemon-scented white flowers in early summer and the clusters of dark elderberry drupes that follow. Spreads by root suckers into naturalized colonies 5 to 12 feet tall and wide; the flowers feed butterflies and the showy fruit feeds birds. The raw berries are not eaten fresh - they are cooked into jelly, pie, and wine.

The American elm is the great vase-shaped shade tree that once arched over Main Streets and town commons across eastern North America - a fast, extremely cold-hardy deciduous tree of 60 to 80 feet whose upright trunk divides into a fountain of high, spreading limbs that meet overhead to form a living cathedral ceiling. That iconic form, and the species' tolerance of wet soil and tough urban conditions, made it the default American street tree for a century. Then Dutch elm disease (DED) - an introduced fungal disease carried by elm bark beetles - swept through in the 20th century and killed the vast majority of mature street and shade elms across the continent. The honest reality for a gardener today is blunt: do not plant the unselected wild species expecting it to survive. If you want the American-elm form, plant a DED-tolerant cultivar bred and selected for resistance - 'Princeton', 'Valley Forge', 'New Harmony', or 'Jefferson' - and say so plainly. Where it does grow, it is fast, hardy to USDA zone 3, and remarkably forgiving of wet ground and city stress.

American germander, also called wood sage, is a widespread North American native perennial in the mint family that runs steadily underground on creeping rhizomes. From early to midsummer it sends up erect, softly hairy stems topped with one-sided spikes of pale pink-to-lavender flowers, each with the distinctive deeply lobed lower lip that gives the germanders their look and makes a generous landing platform for bees. It is a plant of moist open ground - wet meadows, streambanks, ditches, and the edges of thickets - across most of the contiguous United States into southern Canada, which tells you exactly what it wants: sun and a soil that does not dry out. The honest caveat is its vigor: those same rhizomes that fill a bank or a rain garden so readily will also colonize a tidy perennial border and crowd politer neighbors. Site it where it can run, or give it a root barrier, and it rewards you with a long, dependable bee-friendly bloom rather than a maintenance fight.

A rounded, multi-stemmed deciduous shrub native across eastern and central North America, grown for its edible nuts and its season-opening catkins. Showy 2-3 inch yellowish-brown male catkins dangle from bare branches in early spring before the ovate, double-toothed leaves emerge; small egg-shaped edible nuts ripen inside leafy husks by mid- to late summer. Easygoing in average soil and tolerant of clay and black walnut, it suckers into thickets that screen and shelter wildlife.

The only native U.S. holly with both spiny green leaves and bright red berries - an upright, pyramidal, broadleaf evergreen tree that slowly matures to 15 to 30 feet in cultivation (to 50 feet in the wild). Thick, leathery, deep green leaves bear spiny marginal teeth, and pollinated female trees carry showy red-to-orange drupes that ripen in fall and persist through winter as bird food. This is the classic "Christmas holly" of wreaths and decorations.

A small-to-medium understory tree of dry, rocky eastern-North-American woods, named for its drooping clusters of papery, sac-like seed pods that resemble the fruit of hops. The birch-like, sharply-serrated leaves turn an undistinguished yellow in fall, and reddish-brown male catkins persist on the bare branches through winter. Also called ironwood for its extremely hard, dense wood; tough, low-maintenance, and drought-tolerant once established.

A tough, medium-sized native tree of the eastern and midwestern United States, grown as much for its showy edible orange fruit as for its distinctive thick, dark gray bark broken into rectangular blocks. Small urn-shaped white-to-greenish-yellow flowers open in May and June, and the sweet fruit ripens after frost. Largely dioecious - a female tree needs a male pollinizer nearby to set fruit - and notably drought- and walnut-tolerant once established.

A small native deciduous tree (or thicket-forming, suckering shrub) of eastern and central North America, grown for clouds of fragrant white 5-petaled flowers that open in March before the leaves and for the edible red plums that follow in early summer. It forms a broad, spreading crown with attractive dark reddish-brown twigs that sometimes carry thorny lateral branchlets. A documented larval host for swallowtails and other butterflies, with flowers of special value to native, bumble, and honey bees.

A native bramble (cane) producing red aromatic edible fruit in summer or fall (depending on summer-bearing vs everbearing cultivar). Self-pollinating; spreads vigorously by root suckers + tip-rooting canes. NC State documents extensive Lepidoptera + small mammal + bird wildlife value alongside the edible fruit role. Site where the spreading habit is welcome - naturalized colonies form in sun-exposed open ground.

A native canopy tree of eastern North American forests with iconic star-shaped 5-lobed leaves displaying outstanding red-purple-orange fall color, distinctive corky wing-bark on twigs, and spiky round seed pods that famously litter lawns ("gumballs"). The seed pods are the design-defining drawback - Liquidambar is rarely planted in formal landscapes for this reason. Choose seedless cultivars ('Rotundiloba', 'Slender Silhouette') for residential planting.

A massive native deciduous canopy tree of eastern North American floodplain forests producing distinctive mottled white-tan-gray exfoliating bark (the design-defining trait - sycamore bark looks like military camouflage), large palmate maple-like leaves, and persistent spherical seed balls. Among the largest deciduous trees in eastern North America - old-growth specimens exceed 150 feet tall + 10 feet trunk diameter. Site only where massive scale is acceptable.

Amur maple (Acer ginnala, accepted by Kew's Plants of the World Online as Acer tataricum subsp. ginnala) is a small, fast-growing deciduous tree or large multi-stemmed shrub from northeastern Asia - the Russian Far East, northeastern China, and Korea. At 15 to 20 feet it fits where a full-size maple cannot, and it earns that place with three seasons of interest: fragrant greenish-yellow flowers in spring, which is an unusual scent for a maple and an early nectar source for bees; small glossy three-lobed leaves through summer; and reliable, often brilliant red-to-orange fall color that arrives early. It is also one of the hardiest maples, tolerant of cold, wind, dry soil, and a wide range of pH. The honest catch, and it is a serious one for North American gardeners, is that it self-sows prolifically and has escaped cultivation to become invasive across parts of the US Midwest and Northeast, where its shade-tolerant seedlings crowd native shrubs and understory trees in open woods, savannas, and prairies. Several states list it as invasive or a noxious weed. Check your local invasive-species list before planting, and be prepared to remove seedlings if you do.

An upright, clump-forming perennial of the mint family native to the upper Midwest, Great Plains, and into central Canada, named for its anise-scented foliage. From June through September it carries dense terminal spikes of lavender-to-purple two-lipped flowers above square stems and opposite, toothed leaves. The Lady Bird Johnson Wildflower Center flags it as a nectar source with special value to native bees, bumble bees, and honey bees, and it also draws butterflies and hummingbirds.

A native eastern-US deciduous shrub - 'Annabelle' is a sterile-flowered cultivar of smooth hydrangea - with very large white snowball blooms in summer. Blooms on new wood so spring frost cannot destroy the flower display, and serves as the larval host for the hydrangea sphinx moth.

The domesticated orchard apple - a deciduous Rosaceae tree grown for its showy, edible fruit and fragrant April blossom of five white-to-pink petals around a ring of yellow stamens. Not native to North America (the genus Malus spans Europe, Asia, and North America, but the cultivated apple is an Old World hybrid lineage). Almost all varieties are self-incompatible: a second, different apple cultivar blooming at the same time must be nearby for fruit to set, and trees are grown on dwarf, semi-dwarf, or standard rootstocks that decide final size.

A small deciduous Rosaceae fruit tree grown for its golden-orange, red-blushed drupes - fragrant, showy, edible, and ripening in summer. Fragrant white flowers (pink in bud) open in early spring before the foliage, two weeks ahead of peaches. That early bloom is also its weakness: the flowers are extremely susceptible to frost injury, so apricots are notoriously hard to crop reliably outside sheltered sites.

One of the few shade-tolerant goldenrods, this eastern-North-American native carries small yellow flower clusters in the leaf axils along an arching blue-purple stem, bringing late-season pollinator color to woodland edges and dappled shade.

Common hazel (Corylus avellana), also called cobnut or European filbert, is a multi-stemmed deciduous shrub or small tree of European and western-Asian woodland and hedgerow, growing 12 to 20 feet tall with soft, doubly toothed, rounded leaves. It is one of the great wildlife and working plants of the temperate garden: pale-yellow "lambs-tail" male catkins hang all winter and open in late winter before the leaves, and the edible hazelnuts ripen in autumn. Coppiced on a rotation it yields straight poles and, per the Woodland Trust, opens a wildflower-rich woodland floor. The honest catches: it suckers and can become a thicket if left unmanaged, and in North America it is susceptible to Eastern filbert blight, which is why nut growers there favour resistant hybrids.

A bulbous spring perennial native to the deciduous woodlands and hedgerows of western Atlantic Europe - Great Britain, Ireland, France, and the Iberian Peninsula - where it carpets ancient woodland floors in violet-blue before the tree canopy closes. In gardens it naturalizes into fragrant, nodding-raceme colonies under deciduous trees and is one of the most evocative harbingers of a British spring. The honest catch is twofold: all parts of the plant (especially the bulbs) are toxic, and it hybridizes freely with the Spanish bluebell (H. hispanica), producing fertile intermediates that are gradually displacing the pure native in the wild - so gardeners should not plant the two species near each other.

The classic lawn daisy: a low, rosette-forming perennial with spoon-shaped leaves and white, often pink-tipped ray flowers around a yellow disc on short stems, blooming from spring into autumn. The flowers close at night and in rain - the old "day's eye" - and double cool-season bedding forms such as "Pomponette" and "Habanera" are widely grown. Often written off as a lawn weed, it is in fact a tough, charming, child's-favourite groundcover that flowers for months, thrives in mown grass because it keeps its blooms low, and offers easy early-season nectar and pollen. The flowers and young leaves are edible.

English yew (Taxus baccata) is a slow-growing, exceptionally long-lived evergreen conifer native across Europe (except Iceland), the Caucasus, Turkey eastward to northern Iran, and Morocco and Algeria in North Africa, valued for centuries as the definitive topiary and formal hedge tree. Its dense, dark-green needle foliage tolerates extreme shade and hard clipping, making it the premier structural plant for sculptured gardens. The honest catch is severe toxicity: nearly every part of the plant - needles, bark, seeds - contains cardiotoxic taxine alkaloids with no antidote, posing a lethal risk to humans, livestock, horses, and dogs; only the red fleshy aril is non-toxic, though the enclosed seed is deadly.

A large, long-lived deciduous forest tree of temperate and montane Europe, prized for its dense domed crown, smooth grey "elephant-skin" bark, and glossy leaves that emerge silky-edged in spring and turn warm russet in fall. POWO (Kew) records it as native from France, Germany and Great Britain east to Ukraine and south to Italy, Sicily and the Balkans. It is one of the great cathedral-canopy hardwoods of Europe and an unrivalled clipped formal hedge - but it is a true forest tree, not a small-garden specimen, and the honest catch is the shade it casts: very dense, with shallow, greedy roots, so little will grow beneath an open-grown beech.

The classic cottage-garden columbine of Europe, also called granny's bonnet - an airy clump-forming perennial whose ferny blue-green foliage carries nodding, intricately spurred flowers (classically blue-violet, but freely variable in colour and form) in late spring. Native across Europe (POWO, Kew), it is a quintessential cottage plant that self-seeds prolifically and hybridises freely, so it pops up everywhere and named forms rarely come true from seed. It is fairly short-lived - a few years per plant - and leans on that self-sowing to persist. Every part is toxic if eaten, the seeds and roots most of all, so it is decorative only. RHS holds it fully hardy (H7) and has given several Aquilegia vulgaris forms the Award of Garden Merit.

A medium deciduous tree of temperate Europe and south-west Asia, prized as one of the very best hedging and pleaching trees. Its fluted, muscular grey trunk looks almost like sinew under bark, the dense twiggy crown carries ribbed, sharply-serrated leaves, and hop-like clusters of winged seeds (samaras) hang from the branches into autumn. Tough and problem-free - it shrugs off hard clipping, heavy clay, shade, and urban pollution, and like beech it holds its russet dead leaves through winter when kept clipped. No significant invasiveness or toxicity; the wood is exceptionally hard and heavy.

A deciduous European hedgerow shrub or small tree grown above all for one of the most arresting autumn shows of any native woody plant - rosy-pink, four-lobed fruit capsules that split to reveal vivid orange-coated seeds, hanging against red-purple foliage. Native across Europe and into western Asia (POWO, Kew), it is a tough, undemanding plant for hedgerows and informal screens that genuinely earns its keep for wildlife: insect-pollinated flowers in spring, seeds taken by birds, and aphid colonies that feed ladybirds and hoverflies. The honest pitch, and it is load-bearing: every part of this plant is toxic if eaten and the colourful fruit is especially so, so it must be sited away from where children might be tempted; it is also a primary winter host of the black bean aphid, so keep it well clear of a vegetable plot. With those two caveats respected, it is a dependable, wildlife-rich native - chosen for honest autumn drama, not for being trouble-free.

Filbert (Corylus maxima) is a large deciduous shrub native to southeastern Europe and southwestern Asia, from the Balkans through to Ordu in Turkey, where it has been cultivated for its larger-than-hazelnut edible fruits for millennia. In the garden it doubles as bold structural foliage - especially the wine-purple cultivar 'Purpurea' - making it as much an ornamental as a productive shrub. The honest catch is its sheer bulk and suckering ambition: left unmanaged it rapidly forms an impenetrable multi-stemmed thicket 20 to 33 feet tall, requires another Corylus nearby for worthwhile nut crops, and squirrels reliably harvest the nuts before the gardener does.

Fraser fir (Abies fraseri) is an evergreen fir endemic to the high-elevation southern Appalachian Mountains of southwestern Virginia, western North Carolina, and eastern Tennessee, where it grows only on cool, moist, fog-drenched summits above roughly 4,000 feet. It is a modest-sized conifer, usually 30 to 50 feet tall with a narrow, spire-like crown, soft flattened dark-green needles with silvery-white undersides, and erect purple cones whose papery bracts curl back over the scales. It is best known as one of the most popular Christmas trees in North America, prized for its balsam fragrance, soft non-prickly needles, and excellent needle retention. The honest catch is that it is a true mountain plant: it needs cool summers, high humidity, and acidic, evenly moist but well-drained soil, and it does poorly in the heat and humidity of the lowland South, roughly anywhere below or south of USDA zone 7. Its wild stands are also in serious trouble - the introduced balsam woolly adelgid has killed the great majority of mature wild trees since the mid-20th century, and the species is assessed as Endangered.

Grand fir (Abies grandis) is one of the great trees of the Pacific Northwest and a poor choice for most gardens, and those are the same fact rather than two: it is built for cool, wet, deep-soiled maritime ground and it is built enormous. Missouri Botanical Garden gives it 100 to 250 feet with a 4 to 6 foot trunk, says it performs poorly in most areas of the eastern United States, and states flatly that it is not recommended for planting south of USDA Zone 6. It is also fast - the coastal form can put on more than 5 feet a year while young - so the mistake compounds quickly, and it is not a durable tree in return: historically it reached nearly 300 years, but 100 is more typical under modern stress. Its bark is thin and it cannot seal a wound with pitch, so fire scars, pruning cuts and logging damage open the trunk to heart rot, and east of the Cascades a trunk carrying Indian paint fungus is rotten inside whether or not the crown looks it. Balsam woolly adelgid, bark beetles, root rot and needle rust are all on Missouri Botanical Garden's problem list, and western spruce budworm epidemics killed grand fir at scale in the eastern Cascades and the Blue Mountains in the late twentieth century. What is genuinely wonderful about it belongs on the label too. The needles are flat, blunt and laid in two neat horizontal ranks like the teeth of a comb, and along one side of a twig they alternate short, long, short - a sawtooth that white fir rarely shows and the quickest way to name the tree. Crushed, they smell strongly of tangerine, which is why it is also called stinking fir, and no other fir in this group smells like it. The cones stand UPRIGHT on the upper branches and never fall whole; they break apart on the tree in autumn and leave a bare spike standing on the branch, which is the single cleanest way to separate any Abies from a spruce or a pine.

A graceful, long-blooming shrub grown for its hanging, lantern-like flowers - a vivid red tube and sepals around a deep violet-purple skirt of inner petals, dangling on thread-fine stems from early summer until frost. Native to the cool, moist temperate forests and roadsides of southern South America (the Andes of Chile and Argentina south to Tierra del Fuego, and north into Peru), Fuchsia magellanica is the hardiest of the common fuchsias. In its mildest range it builds into an arching, rounded woody shrub 5 to 10 feet tall and wide; in cold-winter gardens it dies back to the ground each year and regrows as a smaller subshrub. The pendant flowers are built for hummingbirds, and small blue-black berries follow. It is the fuchsia to reach for where ordinary basket fuchsias would never survive the winter.

Heather, or ling (Calluna vulgaris), is the low, wiry evergreen shrub that colours the moors and heaths of Europe purple in late summer. It grows only 4 inches to 24 inches tall in dense, spreading mats of tiny scale-like leaves, and from July to September it is covered in spikes of mauve (wild) to white, pink, or red (cultivar) flowers that draw an intense traffic of bees - the source of prized heather honey. It is beautiful, wildlife-rich, and extremely cold-hardy, but it is also a fussy plant with two non-negotiable demands: genuinely acidic soil and cool summers. The honest catches: it will not thrive on chalk or in hot, humid heat (NC State advises against planting south of zone 6), and where introduced - notably New Zealand - it has become an invasive weed.

Jack pine (Pinus banksiana) is a scrubby northern pine that grows further north in Canada than any other native pine, and Missouri Botanical Garden uses the word scrubby without apology. It is 35 to 50 feet at best, often much less and often crooked, with short stiff olive-green needles barely an inch and a half long in bundles of two and strongly curved cones to two and a half inches. It is not a handsome specimen tree and should not be sold as one. What it is instead is a species that will hold ground almost nothing else will: dry sterile sand, burned-over barrens, thin acid soil across the boreal edge. Its cones are serotinous, sealed with resin and capable of hanging closed on the branch for a decade or more until a fire opens them and seeds the burn - so the whole tree is built around catastrophe rather than around continuity. And it carries one of the most specific wildlife dependencies in North America: the rare Kirtland's warbler breeds only in dense tracts of young jack pine under about twenty feet, almost entirely in northern Michigan.

Hakonechloa macra is a slow-growing, clump-forming deciduous grass endemic to Japan, naturally found on rocky woodland slopes near Mount Hakone and across Honshu. It is prized in shaded gardens for its gracefully cascading, fountain-like mounds of thin, arching leaves and warm autumn tones of red and pink. The honest catch is pace and site sensitivity: it is among the slowest ornamental grasses to establish, struggles badly in hot dry summers without consistent moisture, and is prone to leaf scorch if sited in too much sun - it needs rich, reliably moist soil to earn its reputation.

Japanese stewartia is a deciduous tree native to the forests of southern Japan (Honshu, Kyushu, Shikoku) and Korea, introduced to Western cultivation in 1874 and a holder of the RHS Award of Garden Merit. It delivers four-season interest: camellia-like white flowers with orange anthers in summer, rich red-to-purple autumn colour, and exfoliating bark in mottled orange, green, and grey that is the tree's most distinctive winter asset. The honest catch is establishment: stewartia is slow to settle in, resents transplanting once mature, and demands consistently moist, well-drained acidic soil - site it carefully the first time because it does not forgive relocation.

A tough, easy, classic cottage-garden perennial grown above all for its foliage: softly hairy, pleated, rounded, scalloped leaves that catch beads of dew and rain and hold them like quicksilver. In early summer the clumps are topped by airy, frothy sprays of tiny chartreuse-green flowers that froth over the leaves and make a superb filler for cut arrangements. POWO (Kew) records it as native to southeastern Europe, the Carpathians, the Caucasus, and Türkiye, and it has long naturalised across Europe as a cottage-garden mainstay. RHS gives it the Award of Garden Merit and rates it fully hardy (H7). The honest caveats matter: it self-seeds prolifically and can become weedy because it is largely apomictic - it sets viable seed without pollination, which is why seedlings turn up everywhere - so shear the whole plant back hard right after flowering, before seed sets. That single cut both stops the rampant self-seeding and brings up a flush of fresh foliage. It is drought-tolerant once established and is grown purely as an ornamental: the leaves have only a traditional astringent herbal use, so treat it as not a food plant.

A dense, symmetrical shade and street tree of European origin, reaching about 50 to 60 feet with a tidy pyramidal-to-oval crown of small, heart-shaped, finely toothed dark-green leaves. In early-to-mid summer it carries clusters of small, pale-yellow, intensely fragrant flowers - each cluster hung from a narrow leafy bract - that are a premier nectar source and have long been dried for linden-flower tea. Small nutlets follow, the foliage casts deep even shade, and the formal habit and pollution tolerance have made it one of the classic urban and avenue lindens.

A native eastern-North-American perennial aster that opens sprays of lavender-purple daisy flowers with yellow centers in fall, feeding late-season bees and butterflies as summer perennials fade.

Paperbark maple is a small, slow-growing deciduous tree native to central China (Hubei, Sichuan, Gansu, and neighboring provinces), where it is now considered Endangered in the wild by the IUCN. In gardens it earns its keep on three fronts: cinnamon-orange bark that peels in papery curls year-round, brilliant scarlet-orange autumn foliage, and a compact scale (20 to 30 feet) that fits suburban lots. The honest catch is propagation scarcity - most seeds are parthenocarpic (empty), so named nursery stock is expensive and sometimes undersized for its price; patience is required both at the nursery counter and in the garden, as it grows at less than 12 inches per year.

A classic cottage-garden bellflower grown for its tall, slender stems hung with large, outward-facing, cup- or bell-shaped flowers in clear blue or white through early to mid summer, rising from neat evergreen basal rosettes of narrow, peach-like leaves. POWO (Kew) gives its native range as across Europe and into western Asia and western Siberia, and it has been a staple of cottage borders for centuries. It is happy in full sun or light shade in ordinary, moderately moist soil and is hardy in USDA zones 3a-7b. A long-lived, easy, reliable perennial, it self-seeds readily - a charm when it naturalises through a border and a nuisance when it does not - so deadhead to keep it in bounds and to extend the display. RHS rates the species fully hardy (H7) and gives several forms the Award of Garden Merit. The flowers are a traditional mild edible garnish, and the open bells are excellent for bees, especially long-tongued bumblebees.

Red spruce (Picea rubens) is the best-documented case of a tree damaged by air pollution anywhere in the world, and that is the honest headline rather than anything horticultural. Through the 1970s and 1980s, high-elevation stands across the Adirondacks, the Green Mountains and the central and southern Appalachians lost roughly a quarter to a half of their canopy trees. The mechanism took twenty years to pin down and turned out to be indirect: acid fog and mist leach calcium out of the needle cell membranes, and decades of acid deposition strip exchangeable calcium out of already-poor soils while mobilising aluminium that is toxic to fine roots. A calcium-starved needle loses cold tolerance, so the tree is killed not by the acid but by an ordinary winter it should have survived. The controlled proof came from Hubbard Brook in New Hampshire, where a watershed refertilised with calcium silicate in 1999 lost roughly a third as much current-year foliage as the untreated reference watershed in the severe winter-injury year of 2003, the reference losing about 75 per cent of it. The ending is genuinely good news, which is rare in this catalog: after the 1990 Clean Air Act Amendments cut utility sulphur dioxide by around forty per cent, more than three-quarters of monitored red spruce have been growing faster since about 2001. The second thing to know is that this is the tonewood - the Adirondack spruce of pre-war Martin guitars, still the premium soundboard for steel-string guitars, violin bellies and piano boards, and priced accordingly after mid-century overcutting. The third thing is the caveat the Lady Bird Johnson Wildflower Center states flatly: this species is not well suited to cultivation. It wants cool foggy montane summers, permanently moist acid ground and no lime, its roots sit in the top foot of soil so it blows over, and it is often defoliated by spruce budworm. Plant it because you are restoring an Appalachian or northeastern spruce forest, not because you want a garden conifer.

Regal lily (Lilium regale) is the trumpet lily that actually works, and the two hard cautions come first because they are the ones that decide whether you should plant it. Every part of a true lily - tepals, leaves, stem, and the loose orange pollen that drops off the anthers onto a windowsill or a cut-flower table - causes acute kidney injury in cats, and the dose is small enough that grooming pollen off a coat has done it; in delayed cases the reported mortality runs from 50 percent to total. And Missouri Botanical Garden names the lily leaf beetle (Lilioceris lilii) outright in this species' problems list, which for gardeners across the northeastern United States and eastern Canada is now the defining fact of growing any Lilium at all. Past those two, the news is unusually good. Regal lily is the easiest and most forgiving of the trumpet lilies: strong 3-to-5-foot stems carrying up to 25 white trumpets 6 to 8 inches long, yellow in the throat and flushed purple outside, powerfully scented after dark. Missouri Botanical Garden records it as more drought tolerant than most lilies, it accepts limy ground that Oriental lilies refuse, and it is one of very few lilies genuinely worth raising from seed - sow it and you can have flowers in the second or third year, from a plant that carries none of the mosaic virus its sibling the tiger lily spreads. The whole garden population descends from one Sichuan valley. Ernest Henry Wilson found it above the Min River in 1903 and went back in 1910 for 6,000 bulbs; a landslide caught his sedan chair, broke his right leg in two places, and left him with a permanent limp he called his lily limp.

A tall, summer-growing cormous perennial from across sub-Saharan Africa, grown for arching spikes of large, hooded, orange-to-red-and-yellow flowers in summer over fans of sword-shaped leaves. This is the widespread wild African gladiolus and a key ancestor of the big garden gladioli. Unlike the winter-growing Cape bulbs, it is a SUMMER-GROWING corm: plant in spring, grow and flower through summer, then it dies back to a dormant corm for winter. It wants full sun, well-drained soil, and summer moisture, and is one of the hardier species gladioli - surviving to about USDA zone 7 with a deep winter mulch or by lifting the corms in cold-winter areas. The corms are toxic and irritant if eaten and have been used in traditional medicine, never as food. In the wild the hooded flowers are pollinated by sunbirds and long-tongued insects.

A deciduous Eastern-Asian fruit tree with a rounded, spreading crown that the Missouri Botanical Garden lists at 20 to 30 feet tall and wide. Oval leaves emerge yellowish-green, mature to glossy green, and turn gold to red in fall; fragrant but insignificant late-spring flowers give way to showy orange persimmons (3 to 4 inches) that ripen in late fall and may persist on bare branches into winter. Winter hardy to USDA Zones 7-10 and drought tolerant once established.

A bushy, semi-evergreen small shrub (subshrub) grown for an exceptionally long succession of two-lipped flowers - classically bright red or magenta-pink, with many named cultivars such as the bicolour 'Hot Lips' - borne from early summer right up to the first frosts. Its small aromatic leaves are often said to smell of blackcurrant when crushed. One of the very best garden plants for pollinators in a hot, dry, sunny spot, it is tough and free-flowering but only borderline hardy (RHS H4): in cold-winter climates it needs a warm, sheltered position and sharp drainage and is often grown as a tender perennial. It is an ORNAMENTAL salvia and is NOT the culinary sage (that is Salvia officinalis) - it is grown for flowers and pollinators, not for food.

Bear's breeches is a bold Mediterranean perennial whose dramatically lobed, glossy leaves inspired the Corinthian column capital of classical architecture. Its wild native range spans the central and eastern Mediterranean - Italy, Sicily, Sardinia, the Balkans, Greece, the Aegean, Anatolia and the Levant, plus NW Africa (Morocco, Algeria, Tunisia); it is naturalised (not native) further west into Iberia. In gardens it serves as an architectural statement plant, producing tall white-and-purple flower spikes in summer on established clumps. The honest catch is its root system: fleshy, deep-running tuberous roots regenerate readily from the smallest fragment, making Acanthus mollis genuinely difficult to eradicate once established and a declared invasive in Australia and New Zealand, so site selection is a permanent decision.

A handsome, intensely aromatic broadleaf evergreen tree native to coastal California and southwestern Oregon, where it grows from a dense, rounded shade tree of 30 to 75 feet down to a multi-stemmed large shrub on harsher sites. The narrow, glossy, dark-green leaves are richly scented - crush one and the pungent, spicy oil is unmistakable - and small clusters of pale yellow-green flowers in late winter and early spring give way to round, olive-like fruit that ripens from green to purple. It is one of the most fragrant trees of the West Coast and a tough, drought-adapted evergreen for zones 7-9, but it carries two important cautions: the oils are strong enough to earn it the nickname 'headache tree,' and it is a major foliar host and reservoir for Phytophthora ramorum, the pathogen behind Sudden Oak Death, so it should not be planted near oaks or tanoaks in affected regions.

A broadleaf evergreen shrub from Japan, China, and Korea, grown for showy 3-5 inch winter-to-spring flowers in white, pink, red, yellow, and lavender against glossy, leathery, dark green leaves. The most widely cultivated camellia, with thousands of named varieties and a single straight-species form whose broad overlapping petals surround a dense boss of golden-yellow stamens. Winter hardy only to USDA zones 7-9, it needs moist, acidic, organically rich soil and the shelter of part shade.

Loropetalum chinense is an evergreen shrub native to woodlands and thickets across southern China, Japan, Taiwan, and adjacent parts of Southeast Asia, valued in gardens for its distinctive ribbon-like flowers and, in the popular purple-leaved forms, year-round burgundy foliage. It thrives in zones 7-9 as a bold structural shrub or hedging plant, blooming most heavily in late winter to early spring. The honest catch is its absolute dependence on acidic soil: even slightly alkaline pH triggers iron chlorosis, and in the Southeastern US a bacterial crown gall disease can cause rapid branch dieback and plant death, making site preparation and soil testing non-negotiable before planting.

Chinese holly (Ilex cornuta) is the only plant in this holly group that is not from here, and that is the first thing to say about it. It is native to eastern China and Korea, it is sold across the American South by the pallet, and Missouri Botanical Garden records plainly that "it has naturalized from garden plantings in North Carolina and Alabama". Kew's data adds introduced occurrences in Alabama, Arkansas, California, Florida, Louisiana, both Carolinas and Tennessee, and the mechanism is the plant's own selling point: birds eat the showy red drupes and carry the seed into woodland edges. On its merits it is a genuinely tough broadleaf evergreen - 8 to 15 feet each way, heat and drought tolerant, deer-proof, comfortable in city conditions, and carrying the most distinctive leaf in the genus, a stiff rectangular blade to four inches with three big spines at the blunt end rather than the wavy spined outline of English holly. The catch beyond the escape risk is cold: it is zone 7 to 9, and Missouri Botanical Garden says flatly that "winter hardiness is a significant problem in St. Louis". Set against inkberry, yaupon and possumhaw in this batch, it is the one whose wildlife value stops at the fruit.

A tuberous-rooted member of the aster family native to Mexico and Central America, grown for showy summer-to-fall blooms in nearly every color except blue. Hybrids in commerce span ten flower-form groups (single, anemone, collarette, waterlily, decorative, fall, pompon, cactus, semi-cactus, and miscellaneous) and range from 1 to 6 feet tall. Winter-hardy only to USDA Zones 7-10; in colder regions the tubers are lifted in fall and stored frost-free, so most North American gardeners grow it as a summer annual.

David viburnum is a compact, mound-forming evergreen shrub native to western China (its provenance usually given as the Sichuan / Yunnan region), grown for its bold, deeply three-veined glossy leaves, small clusters of white flowers in late spring, and - when fruiting - striking oval drupes in a distinctive metallic turquoise-blue. It holds the RHS Award of Garden Merit and suits the front of borders, shaded corners, and containers in cool-temperate to mild climates. The honest catch is a fundamental one: it is dioecious, so you must plant at least one male and one female together to get the celebrated blue fruit - a single plant in isolation will never berry, and many gardeners discover this only after years of waiting.

A graceful, large evergreen conifer from the western Himalayas, prized as a specimen for its broadly pyramidal form, gently nodding leader, and sweeping branches whose tips droop in soft, weeping curtains. Slender blue-green to gray-green needles are borne in dense whorled clusters on short spurs, and barrel-shaped upright cones sit on the upper branches, ripening from blue-green to reddish-brown and disintegrating on the tree. In the landscape it typically reaches 30 to 50 feet (with much greater potential in age and ideal sites), needs real room to spread, and is the most heat- and warmth-tolerant of the true cedars - thriving in zones 7-9 where spruce and fir falter, but it does want good drainage and is not a small-garden tree.

Fraser photinia is a large evergreen hybrid shrub bred at Fraser Nurseries in Alabama in the 1940s by crossing the Japanese Photinia glabra with the Chinese P. serratifolia; it has no wild native range. Its brilliant scarlet new growth, produced in flushes from spring through summer, made it one of the most planted hedging shrubs in the UK and southeastern US. The honest catch is Entomosporium leaf spot (Entomosporium maculatum): in humid climates this fungal disease causes progressive defoliation and can kill established plants over several seasons, making sustained dense hedging unreliable without repeated fungicide intervention or very good airflow.

The classic "sword lily" of the summer cut-flower garden - a corm-grown hybrid (commonly designated Gladiolus × hortulanus) descended from at least eight mostly South African species. Sword-shaped leaves rise in upright fans below a one-sided spike of funnel-shaped blooms that open bottom-to-top in nearly every color but true blue. Showy and fragrant but not winter-hardy outside zones 7-10: in colder gardens the corms are lifted and stored frost-free.

A Mediterranean thistle relative grown as a perennial vegetable for its large, unopened flower bud - the edible "globe" of overlapping fleshy bracts harvested before bloom. It forms an upright clump of deeply lobed, jagged silver-green leaves, with flower stalks rising to 3 to 5 feet. Left unharvested, the buds open to spectacular violet-blue thistle flowers up to 7 inches across that are a magnet for bees.

A large, suckering deciduous shrub or small multi-stemmed tree native to China, Japan, Korea and Taiwan (and reported east to the Philippines), grown for its intensely fragrant white star-flowers in late summer - each cradled in a green calyx that flushes crimson as the season turns - followed by startling turquoise-blue berries against a vivid red star. It delivers one of the most theatrical autumn displays in the garden and draws bees, butterflies and moths to its late nectar. The honest catch is a relentless suckering habit: established plants send up a spreading thicket of root shoots that must be pulled or mown season after season, and in the warmer parts of its cultivated range it can self-seed enough to be treated as locally invasive.

Aucuba japonica is a slow-growing, evergreen dioecious shrub native to the moist forested valleys, thickets, and streamsides of southeastern China, Taiwan, Korea, and Japan. It earns its place in gardens for an ability shared by almost no other large-leafed shrub: genuine performance in deep, dry shade under urban pollution, making it a go-to structural plant where little else survives. The honest catch is toxicity - all parts, especially the leaves and red berries, contain the iridoid glycoside aucubin, which causes nausea and vomiting if ingested (and GI upset in pets), so it is unsuitable where children or animals browse unsupervised; and because the species is dioecious, a male plant must be present within pollinator range for female plants to set the ornamental red berries it is prized for.

Mahonia japonica (syn. Berberis japonica) is an evergreen architectural shrub native to Taiwan - the "Japanese" name reflects centuries of cultivation in Japan, not its wild origin (Wikipedia, Berberis japonica). It earns its place in the winter garden through long, pendant, intensely fragrant yellow flower racemes borne from autumn through early spring, followed by blue-black berries; the RHS has awarded it the Award of Garden Merit. The honest catch is a three-part cluster: the berries and foliage contain berberine alkaloids (mildly toxic to people and pets, and the berries are ornamental - not to be eaten), the spiny hollylike leaflets make pruning and under-planting a literal ordeal, and in mild maritime climates bird-dropped seed can produce stray seedlings in border edges.

Japanese spindle is a glossy-leaved evergreen shrub native to Japan, Korea, and the Nansei-shoto (Ryukyu Islands), valued across Europe and North America as a tough, salt-tolerant hedge and foundation plant. It thrives in sun or shade, tolerates pollution and maritime winds, and carries dozens of cultivars with variegated or golden foliage. The honest catch is a three-part penalty: all parts of the plant are toxic to humans and animals, powdery mildew frequently disfigures foliage in humid inland sites, and it is listed as invasive in parts of the southeastern United States and New Zealand, self-seeding freely in mild-winter climates.

Jerusalem sage (Phlomis fruticosa) is an evergreen Mediterranean shrub grown for its bold foliage and its distinctive tiered flowers. Through spring and into early summer the stems carry whorl upon whorl of hooded, butter-yellow blooms stacked in neat tiers up the stem, set against sage-like, wrinkled, grey-green leaves that are softly felted with hairs. Despite the name it is not a true sage and is not culinary - it is grown purely as an ornamental. It is a tough, sun-loving, drought-tolerant shrub for hot, dry, sharply-drained places: gravel gardens, Mediterranean-style borders, and hot sunny banks. The honest caveat is that it resents wet, heavy soil and cold winters; it is only borderline hardy (RHS H4), so in cold-winter areas it needs a warm, sheltered spot and very sharp drainage to come through. Trim it lightly after flowering to keep it bushy and compact, leave the dried seedheads for winter structure, and enjoy it as the good bee plant it is.

The western counterpart of eastern flowering dogwood - a small deciduous tree of the Pacific coast with horizontal, tiered branching and a rounded-to-conical crown. Its showy spring "flowers" are actually a tight central cluster of tiny purple-green true flowers ringed by six large white petal-like bracts (eastern flowering dogwood has four). Elliptic dark green leaves color yellow to orange to red in fall, and the 1/3-inch fruits ripen to showy bright red or orange that feed songbirds, squirrels, and deer.

A rosette-forming evergreen succulent native to the grasslands, desert scrub, and pinyon-juniper woodlands of Arizona, New Mexico, Texas, and northern Mexico at 4,000 to 8,000 feet. Thick, rigid blue-gray leaves with toothed margins and a one-inch terminal spine form a dense, symmetrical basal rosette to about 24 inches tall by 3 feet wide. Surprisingly cold-hardy for a succulent - reliably hardy to USDA Zone 7 and reported to survive -20°F as long as the cold is dry rather than wet. Each rosette flowers only once, after 10-30 years, sending up a single 20-foot stalk before dying and leaving its rooted offsets behind.

A tall, erect, multi-stemmed native deciduous azalea of the lower southeastern United States, prized for clouds of intensely fragrant golden-yellow to apricot-orange tubular flowers that open in early to mid spring just as the leaves emerge. One of the more heat- and humidity-tolerant native azaleas, it forms an open, upright shrub 8 to 10 feet tall that reads as a small flowering tree in maturity. It wants part shade, acidic humus-rich soil, and consistent moisture; like every Rhododendron, all parts are toxic if eaten.

Kniphofia rooperi is a robust, evergreen South African perennial endemic to the Eastern Cape, grown for its striking autumn torches of scarlet-to-orange-yellow tubular flowers on tall stems over strap-shaped foliage - one of the last red-hot pokers to bloom and a holder of the RHS Award of Garden Merit. It fits well as a bold focal point or late-season pollinator plant in the mixed border. The honest catch is drainage: this species demands reliably moist yet sharply well-drained soil - too dry and the flowerheads abort, too wet in winter and the crown rots; heavy clay or boggy ground without amendment is a hard no.

Sasanqua camellia is an evergreen shrub native to the forests of southern Japan - Kyushu, Shikoku, and the Ryukyu Islands - where it grows on forest margins and hillsides. In gardens it is prized as the earliest-flowering camellia, bearing fragrant blooms from September through January when almost nothing else is in flower, and it tolerates more sun and drought than its cousin Camellia japonica. The honest catch is cold hardiness: open flowers are blackened by hard frost, and the plant itself is reliably hardy only from zone 7a south, making it unsuitable for much of the northeastern and midwestern United States without meaningful shelter.