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Ozark Highlands mixed forests

Ozark Highlands mixed forests

Ozark Highlands mixed forests
The Ozark Highlands mixed forests sit at the western edge of North America's central hardwoods region, covering about two-thirds of Missouri plus parts of Arkansas, Oklahoma, and a corner of southeastern Kansas. The rolling-to-dissected landscape (reaching a maximum of around 1,000 m) is dominated by oak-hickory and oak-hickory-pine forests interspersed with fire-maintained patches of prairie and oak savanna, with shortleaf pine as the flagship species. The climate is humid warm temperate, with hot summers and cool winters. The wider central hardwoods region holds relatively few tree species but high herbaceous diversity (some 2,527 species of herbaceous plants and shrubs), and the Ozarks themselves feature extensive karst topography of sinkholes, caves, and spring-fed streams that shelter endemic cave species such as the grotto salamander and southern cavefish. Only about 4% of the ecoregion is protected.
RESOLVE 340
Nearctic
41,056 sq mi
Temperate Broadleaf & Mixed Forests
Landscape type
Temperate Broadleaf & Mixed Forests
Plant region
Nearctic
Region footprint
41,056 sq mi
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 545 of 545 climate-fit plants for this region.
Reliable climate fits
Good bets for now and later
493 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
18 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
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
Future climate matches
Likely better as winters warm
34 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: 0/6
Climate resilient: 6/6
Wildlife links: 14
Host/specialist links: 4
Forage/pollination links: 19
Shelter links: 1
AD
AF
AL
AM
AM
AM
Shade-edge planting
A softer edge kit for woodland margins, porches, and mixed-light garden edges.
Native fit: 0/6
Climate resilient: 6/6
Wildlife links: 14
Host/specialist links: 4
Forage/pollination links: 16
Shelter links: 1
AD
AF
AL
AL
AM
AM
Resilient shrub layer
A woody structure layer led by plants that fit both current and projected regional conditions.
Native fit: 0/6
Climate resilient: 6/6
Wildlife links: 13
Host/specialist links: 4
Forage/pollination links: 17
Shelter links: 1
AD
AL
AM
AM
AM
AM

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) - 1 sub-region
39 · Ozark Highlands
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.
States and provinces

Educator packet

Region packet
Ozark Highlands mixed forests educator packet
The Ozark Highlands mixed forests sit at the western edge of North America's central hardwoods region, covering about two-thirds of Missouri plus parts of Arkansas, Oklahoma, and a corner of southeastern Kansas. The rolling-to-dissected landscape (reaching a maximum of around 1,000 m) is dominated by oak-hickory and oak-hickory-pine forests interspersed with fire-maintained patches of prairie and oak savanna, with shortleaf pine as the flagship species. The climate is humid warm temperate, with hot summers and cool winters. The wider central hardwoods region holds relatively few tree species but high herbaceous diversity (some 2,527 species of herbaceous plants and shrubs), and the Ozarks themselves feature extensive karst topography of sinkholes, caves, and spring-fed streams that shelter endemic cave species such as the grotto salamander and southern cavefish. Only about 4% of the ecoregion is protected.
Realm
Nearctic
Dominant biome
Temperate Broadleaf & Mixed Forests
Approximate area
41,056 square miles
States / provinces
Not recorded
Climate descriptor
Not recorded
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.). Ozark Highlands mixed forests (Ozark Highlands mixed forests). Retrieved 2026, October 9, from https://plotwright.com/regions/resolve-340
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
One Earth
One Earth