Piedmont

Appalachian Piedmont forests
A rolling-hills ecoregion between the Atlantic Coastal Plain and the Appalachian Mountains, covering parts of Virginia, North Carolina, South Carolina, Georgia, and Alabama. Mixed oak-pine forest dominates the natural cover; humid subtropical climate with hot summers and mild winters. RESOLVE 2017 catalogs this region as "Appalachian Piedmont forests"; "Piedmont" is the colloquial garden name.
RESOLVE 330
Nearctic
64,150 sq mi
Humid subtropical (Köppen Cfa)
Temperate Broadleaf & Mixed Forests
States / provinces
Virginia, North Carolina, South Carolina, Georgia, Alabama
Landscape type
Temperate Broadleaf & Mixed Forests
Plant region
Nearctic
Region footprint
64,150 sq mi
Elevation range
200 – 1,500 ft
Climate type
Humid subtropical (Köppen Cfa)
Habitat pressure
Nature Could Recover (Dinerstein NNH 3)
Use this as the broad planting pattern for the region: Four-season forests of deciduous hardwoods - oak, maple, beech - often mixed with conifers, shaped by warm summers and cold winters. Trees leaf out in spring and color in autumn; the generally fertile soils have made these forests heavily settled and farmed. For garden decisions, pair that context with the plant list below, then narrow by your site's light, water, soil, and mature-size constraints.

Plants that can handle this region

A climate-fit shortlist from Plotwright's catalog. Start with the reliable fits, then use each plant page to check light, water, soil, mature size, and local availability.
Showing 539 of 539 climate-fit plants for this region; 154 are marked native here.
Native here (154)
Reliable climate fits
Good bets for now and later
496 plants
These plants fit the region today and stay within range under the mid-century projection. Start here when you want choices with the least climate regret.
Good now, not later
Good now, less certain later
11 plants
These plants fit the region as it is today. The projection moves them outside their listed range, so treat them as shorter-horizon or higher-care choices.
Grand fir boughs seen from above, the flat needles laid in strictly two-ranked combs either side of brown twigs, with needles of clearly unequal length, over brown forest-floor leaf litter and moss.
Abies grandis
Grand fir
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.
Tree
Full sun / Part shade
Consistent moisture
Zones 5a-6b
Climate: narrow
Structure
Focal point
Native here
Red spruce crowns with full conical outlines and slightly drooping branches standing along a meadow edge, silhouetted against a deep blue cloudless sky.
Picea rubens
Red spruce
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.
Tree
Full sun / Part shade
Consistent moisture
Zones 3a-6b
Climate: moderate
Structure
An old Rocky Mountain juniper (Juniperus scopulorum) standing alone on a steep grassy slope, its several grey weathered trunks twisting up from the ground into a dense wind-shaped crown of dark olive-green scale foliage that leans away to one side. Snow-streaked mountains and sagebrush rangeland fall away behind it.
Juniperus scopulorum
Rocky Mountain juniper
Rocky Mountain juniper (Juniperus scopulorum) is the western counterpart to eastern redcedar, and the two are confused constantly - with good reason, because where their ranges meet across the Great Plains they hybridise freely and intermediate trees are genuinely hard to name. Start with the caveat: Missouri Botanical Garden has no species-level page for it at all, only cultivar entries, and the species is the wrong plant for a hot humid climate. The Lady Bird Johnson Wildflower Center is blunt about it - drought and salt spray are fine, high humidity and high night temperatures are not - so this is a plant for the dry interior west and the plains, not the Southeast. What it offers there is unusual. It is a narrow, slow, drought-hard tree of dry rocky foothills, 30 to 50 feet on a good site and often far less, with shredding red-brown bark, blue-grey scale foliage, and high tolerance of caliche and limestone - the mirror image of the acid-soil hollies in this batch. It is dioecious like them, so the waxy blue-black cones appear only on female trees with a male nearby, and those cones are cones rather than fruit, taking about 18 months to ripen. It also lives an extraordinarily long time: the Jardine Juniper in Utah is over 1,500 years old and a New Mexico specimen counted 1,888 rings. The hard restriction is cedar-apple rust, for which it is an alternate host - do not plant it near an orchard.
Tree
Full sun / Part shade
Low water
Zones 3a-7b
Climate: moderate
Structure
Focal point
A Siberian iris (Iris sibirica) in a damp meadow, its slender green stem carrying one open violet-blue flower low in the frame and a second above, both beaded with rain. The falls are netted with fine dark veining over a pale gold and white signal; a narrow pointed bud stands alongside. Yellow meadow flowers blur into the background.
Iris sibirica
Siberian iris
Two honest caveats before the good news. First, almost nothing sold as Siberian iris is this species: several hundred registered cultivars stand between the buyer and the wild plant, a great many of them hybrids with Iris sanguinea rather than Iris sibirica at all, so a garden centre label is a series name more than a binomial. Second, it is slow and it does not want your help. The Royal Horticultural Society gives two to five years to ultimate height, and the standing advice is to avoid dividing a clump unless the centre has actually died out - the opposite of the reflex most gardeners apply to perennials. There is also a quiet irony worth stating: a plant this common in gardens is Extinct in the Wild in Slovakia, Vulnerable in the Czech Republic, Hungary and Ukraine, and rare and endangered in Poland, because the wet hay meadows it belongs to have been drained. Now the good news, which is most of the record. This is the low-drama iris of the group. It is beardless, with a thin creeping rhizome about a centimetre thick rather than the fat surface knuckle of a bearded iris, and it is planted BURIED - rhizome tops 1 to 2 inches under the soil, exactly the depth that would rot Iris pallida. It wants ordinary good garden soil that stays moist through spring and early summer and is merely ordinary by August, so unlike Iris pseudacorus and Iris virginica in this wave it is not a water plant and will not thank you for a pond margin. Its narrow ribbed grassy foliage stays clean and upright all season where bearded-iris fans go rusty by July, it never needs staking, it is long-lived and clump-forming, and it carries far less of the iris borer burden that defines rhizomatous iris culture in eastern North America. If you want one iris out of this group and you want it to behave, this is the one.
Perennial
Full sun / Part sun / Part shade
Moderate water
Zones 2a-8b
Climate: moderate
Border
Structure
Subalpine firs with very narrow steeple crowns scattered across a green subalpine meadow, with lingering snowfields, bare rock and a cloud-covered peak behind them.
Abies lasiocarpa
Subalpine fir
Subalpine fir (Abies lasiocarpa) is the narrowest conifer in western North America and, for most gardens, the wrong tree. It is a timberline species: the US Forest Service silvical account puts its climate at a mean July temperature of 45 to 60°F, with more than 24 inches of precipitation of which much falls as snow, on ground that is frozen or under snow for a large part of the year. Bring it down the mountain into a hot summer, a humid one, or a polluted one and it sulks, thins and dies, and it does so slowly enough that people keep watering it. The Lady Bird Johnson Wildflower Center calls it a spire-like evergreen of 30 to 50 feet with stiff horizontal limbs branched to the ground, and that spire is the whole ornamental argument - a crown so narrow it can be a fifth as wide as it is tall, which is a snow-shedding adaptation rather than a nursery selection. At and above treeline it stops being a tree at all and grows as krummholz, low sprawling mats scoured by wind, and reproduces by LAYERING: a branch pressed into the ground roots and becomes a new stem, so a single tree can leave behind a ring of clones that mountaineers call an atoll. Two honest problems follow it down into cultivation. It is slow and, for a conifer, short-lived and structurally weak - thin bark, persistent dead branches, easily windthrown - and its pest list is serious: balsam woolly adelgid (Adelges piceae), introduced from Europe and the most destructive insect on this species in the Cascades, and the western balsam bark beetle (Dryocoetes confusus), which together with Armillaria root rot drives the mortality complex that has killed subalpine fir across large areas of the Rockies. Like every true fir it carries its cones UPRIGHT on the upper branches, dark purple ripening brown, and those cones never fall whole - they shatter on the tree and leave a bare central spike standing on the branch, which is the single quickest way to tell an Abies from a Picea at a glance.
Tree
Full sun / Part shade
Moderate water
Zones 3a-6b
Climate: moderate
Structure
Focal point
Future climate matches
Likely better as winters warm
32 plants
These plants are not the best current fit, but the mid-century projection moves this region toward their comfort range.

Planting collections

Finished planting recipes where every member can handle this region's climate range. The fit badge uses the collection's most sensitive plant, so a resilient collection is a safer starting point than any single standout.
Annabelle hydrangea (Hydrangea arborescens 'Annabelle') showing large white ball-shaped flower clusters on a rounded deciduous shrub.
Coral bells (Heuchera 'Marmalade') showing a low mound of ruffled coppery-orange foliage characteristic of the Heuchera villosa-derived hybrids.
Climate-resilient · 2 plants
Bright shade foundation
A part-shade planting with shrub structure and low foliage contrast.
Annabelle hydrangea
Coral bells
Switchgrass (Panicum virgatum) mature clump in the green growing season, its upright vase-shaped habit topped by the airy, diffuse open panicles diagnostic of the species.
Little bluestem (Schizachyrium scoparium) clumps in a garden bed, showing the species' upright, fine-textured blue-green vase-shaped growing-season habit.
Common milkweed (Asclepias syriaca) mature clump in flower, showing its stout upright reddish stems, broad opposite leaves, and pink-mauve flower umbels with young green pods.
A full clump of black-eyed Susan (Rudbeckia fulgida 'Goldsturm') in a garden bed, showing the dense mounded foliage base topped with golden, dark-centered daisies on branching stems.
+4
Climate-resilient · 8 plants
Climate-resilient natives for warming zones (eastern NA)
A pollinator-supporting palette of eastern North American natives with broad hardiness ranges and wide native distributions. Built for gardeners who want a planting that can handle warming zones without giving up wildlife value.
Switchgrass
Little bluestem
Common milkweed
Orange coneflower
Wild bergamot
Sweet Joe-Pye weed
Cutleaf coneflower
New England aster
A mature butterfly weed (Asclepias tuberosa) clump in a garden bed, showing its bushy mounded habit with several flat-topped orange umbels above a dense whorl of narrow leaves.
Common milkweed (Asclepias syriaca) mature clump in flower, showing its stout upright reddish stems, broad opposite leaves, and pink-mauve flower umbels with young green pods.
Purple coneflower (Echinacea purpurea) in bloom, showing pinkish-purple ray petals around a brown-domed central cone on an erect stem.
Wild bergamot (Monarda fistulosa) clump in an open meadow, its several upright square stems each topped by a ragged lavender flower head over toothed mint-family foliage.
+5
Climate-resilient · 9 plants
Native pollinator border (eastern US)
A continuous-bloom native pollinator strip for eastern North America. Covers spring through frost with host + nectar plants spanning monarchs, native bees, hummingbirds, and specialist Lepidoptera. Little bluestem provides the matrix grass + Hesperiidae host.
Butterfly weed
Common milkweed
Purple coneflower
Wild bergamot
Scarlet bee balm
Little bluestem
Sweet Joe-Pye weed
Swamp sunflower
Smooth blue aster
A mature oakleaf hydrangea (Hydrangea quercifolia) in flower - a broad, mounded multi-stemmed shrub studded with upright white panicles above coarse, deeply lobed oak-shaped leaves.
Woodland phlox (Phlox divaricata) showing five-petaled pale lavender-blue flowers on slender erect stems above a low spreading mat of foliage.
Wild columbine (Aquilegia canadensis) whole plant in rocky-ledge habitat, the airy blue-green compound foliage hung with nodding red-and-yellow spurred flowers.
Foamflower (Tiarella cordifolia) showing characteristic frothy white spring flower spikes above heart-shaped foliage.
+2
Climate-resilient · 6 plants
Part-shade woodland edge
A part-shade / bright-shade planting for morning sun or dappled light - eastern North American woodland-edge natives with spring bloom, season-long foliage, and a fern + shrub structure.
Oakleaf hydrangea
Woodland phlox
Wild columbine
Foamflower
Hairy alumroot
Christmas fern
English lavender (Lavandula angustifolia) as a broadly mounded, dense subshrub of fine silvery blue-green aromatic foliage.
Purple coneflower (Echinacea purpurea) in bloom, showing pinkish-purple ray petals around a brown-domed central cone on an erect stem.
A full clump of black-eyed Susan (Rudbeckia fulgida 'Goldsturm') in a garden bed, showing the dense mounded foliage base topped with golden, dark-centered daisies on branching stems.
Switchgrass (Panicum virgatum) mature clump in the green growing season, its upright vase-shaped habit topped by the airy, diffuse open panicles diagnostic of the species.
Climate-resilient · 4 plants
Sunny pollinator border
A durable sunny border with summer bloom, seedheads, and upright winter texture.
English lavender
Purple coneflower
Orange coneflower
Switchgrass

Starter kits for this region

Generated from catalog plants that already pass this region's climate fit gate, with native matches sorted first when the catalog has enough coverage.
Sunny pollinator border
A sunny, wildlife-forward planting assembled from plants that pass this region fit gate.
Native fit: 6/6
Climate resilient: 6/6
Wildlife links: 20
Host/specialist links: 4
Forage/pollination links: 24
Shelter links: 4
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Shade-edge planting
A softer edge kit for woodland margins, porches, and mixed-light garden edges.
Native fit: 6/6
Climate resilient: 6/6
Wildlife links: 20
Host/specialist links: 4
Forage/pollination links: 24
Shelter links: 4
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Resilient shrub layer
A woody structure layer led by plants that fit both current and projected regional conditions.
Native fit: 6/6
Climate resilient: 6/6
Wildlife links: 20
Host/specialist links: 4
Forage/pollination links: 24
Shelter links: 4
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Similar planting regions

Browse other regions in the same biome. Their plant lists can suggest species and combinations worth comparing.
Rolling forested Catskill highlands viewed from Twin Mountain in New York.
RESOLVE 328 - Nearctic
Allegheny Highlands forests
The Allegheny Highlands forests stretch across the Allegheny Plateau of Pennsylvania and New York, a hilly landscape of deeply cut river valleys, waterfalls, and-in the glaciated New York portion-the Finger Lakes. Under a cold temperate climate, pre-settlement forests were dominated by hemlock-white pine-northern hardwoods, with eastern hemlock and beech most abundant alongside sugar maple, red maple, birch, white ash, and black cherry. Eastern hemlock, the ecoregion's flagship species, is now declining across much of the region due to the introduced hemlock woolly adelgid, while over-abundant white-tailed deer suppress forest regeneration.
Temperate Broadleaf & Mixed Forests
Zones 5a-6a
+6.2°F by 2070
28,229 sq mi
NNH tier 2
Forested gorge and cliffs at Hansons Point in the Appalachian mixed mesophytic forest region.
RESOLVE 329 - Nearctic
Appalachian mixed mesophytic forests
The Mixed Mesophytic - the most species-diverse temperate hardwood forest in North America - covers the Cumberland Plateau and adjacent unglaciated dissected uplands of West Virginia, eastern Kentucky, southern Ohio, southwestern Virginia, and eastern Tennessee. Sugar maple, American beech, tulip poplar, yellow buckeye, basswood, and white ash share cove-forest canopies with more than two dozen co-dominant species - a richness inherited from being ice-sheet-free during the Pleistocene.
Temperate Broadleaf & Mixed Forests
Zones 5b-8a
+5.7°F by 2070
70,054 sq mi
Editorial profile
NNH tier 2
Layered forested slopes of the Blue Ridge near Craggy Gardens, North Carolina.
RESOLVE 331 - Nearctic
Appalachian-Blue Ridge forests
The Blue Ridge province - the eastern spine of the southern Appalachians from southern Pennsylvania through northern Georgia. Cove hardwoods on protected slopes, oak-hickory mid-slope, northern hardwoods + spruce-fir on the highest peaks (Mt. Mitchell to 6,684 ft). Long the eastern US's wettest non-coastal region; many endemic plants tied to perched coves.
Temperate Broadleaf & Mixed Forests
Zones 6a-8a
+5.0°F by 2070
63,065 sq mi
Editorial profile
NNH tier 2
Post oak woodland and flowering grassy verges along a sand road at Gus Engeling Wildlife Management Area, Texas.
RESOLVE 332 - Nearctic
East Central Texas forests
The East Central Texas forests form a long, narrow temperate broadleaf and mixed forest ecoregion of roughly 52,600 km², lying almost entirely within Texas with a small extension into southeastern Oklahoma, between the eastern Piney Woods and the western prairies. Its signature landscape is the Post Oak Savanna over gently rolling terrain, dominated by post oak and blackjack oak alongside eastern redcedar and black hickory, with the Bastrop Lost Pines holding the westernmost stands of southern pine in the U.S. The climate is humid subtropical to warm temperate, with hot summers, mild winters, and annual rainfall of about 740–1,120 mm. Heavily converted to ranching and farmland, the ecoregion is considered critically fragmented: only about 1% is protected, and it shelters the endangered Houston toad and Attwater's prairie chicken.
Temperate Broadleaf & Mixed Forests
Zones 8a-9a
+2.9°F by 2070
21,550 sq mi
NNH tier 4
Balsam fir and white birch forest above the rapids of the Jacques-Cartier River, Laurentides, Quebec.
RESOLVE 333 - Nearctic
Eastern Canadian Forest-Boreal transition
The Eastern Canadian Forest-Boreal transition is the broad east-west band between the northern hardwoods of New England-Acadian forests and the boreal black-spruce taiga to the north - covering much of southern Quebec, central New Brunswick, and the Ontario / Quebec near-boreal interior. Sugar maple, yellow birch, balsam fir, white spruce, and white birch are the canopy mix; the line between hardwood-dominant south and conifer-dominant north shifts visibly across the ecoregion. The region carries one of the highest projected mid-century warming signals in the temperate Western Hemisphere.
Temperate Broadleaf & Mixed Forests
Zones 3a-4b
+7.3°F by 2070
122,775 sq mi
Editorial profile
NNH tier 2
A red pine crown spreading across a hillside of yellow and orange autumn hardwoods, Cap Tourmente, Quebec.
RESOLVE 334 - Nearctic
Eastern Great Lakes lowland forests
The Eastern Great Lakes lowland forest belt - the Lake Ontario / upper St. Lawrence / Lake Erie basin from southern Ontario and Quebec south into New York, Pennsylvania, Ohio, and eastern Michigan. Sugar maple, beech, hemlock, and northern hardwoods dominate; lake-effect snow and humid summers buffer extremes near the shorelines. Garden-relevant for the long migratory bird and pollinator corridor along the lake margins.
Temperate Broadleaf & Mixed Forests
Zones 4a-6b
+7.5°F by 2070
50,065 sq mi
Editorial profile
NNH tier 4

National refinement sub-regions

Within this RESOLVE ecoregion, national agencies recognise finer-grained sub-regions. Plotwright assigns each sub-region polygon to its containing RESOLVE polygon by centroid.
EPA Level III (US-only) - 3 sub-regions
45 · Piedmont
65 · Southeastern Plains
66 · Blue Ridge
Source: USGS / EPA via Omernik (1987).

Where this ecoregion reaches

The countries, US states, and Canadian provinces this ecoregion touches, from a spatial join of its RESOLVE polygon against Natural Earth boundaries.

Educator packet

Region packet
Piedmont educator packet
A rolling-hills ecoregion between the Atlantic Coastal Plain and the Appalachian Mountains, covering parts of Virginia, North Carolina, South Carolina, Georgia, and Alabama. Mixed oak-pine forest dominates the natural cover; humid subtropical climate with hot summers and mild winters. RESOLVE 2017 catalogs this region as "Appalachian Piedmont forests"; "Piedmont" is the colloquial garden name.
Realm
Nearctic
Dominant biome
Temperate Broadleaf & Mixed Forests
Approximate area
64,150 square miles
States / provinces
Virginia, North Carolina, South Carolina, Georgia, Alabama
Climate descriptor
Humid subtropical (Köppen Cfa)
Classroom prompts
- Which climate and biome facts explain why this region supports its characteristic plants?
- How do native-plant and wildlife-support claims differ from a species-presence claim?
- Which source-backed facts would you cite before using this region in a classroom map activity?
Use the Sources & citations section below for page citation styles and region source links.

Sources & citations

Cite this page
For lesson plans, articles, or regional planting notes that use this Plotwright page. To cite the underlying ecoregion framework or a specific editorial profile, use the source cards below.
Plotwright. (n.d.). Piedmont (Appalachian Piedmont forests). Retrieved 2026, August 20, from https://plotwright.com/regions/resolve-330
Sources for this region
This page cites Plotwright first for the compiled view, then lists the upstream framework, climate, and editorial source pages so readers can cite the original material directly.
RESOLVE 2017 Terrestrial Ecoregions (Dinerstein et al.)
Primary ecoregion framework
USDA Plant Hardiness Zone Map
Published hardiness-zone authority