The California Central Valley grasslands fill the long lowland between the Sierra Nevada to the east and the Coast Ranges to the west, spanning the Sacramento Valley in the north and the San Joaquin Valley in the south. The climate is Mediterranean, with most rain falling in winter and conditions growing drier from north to south and on the western, rain-shadowed side. Historically a mosaic of perennial bunchgrass prairie, oak savanna, vernal pools, and riparian woodland, the region is now largely converted to farmland and dominated by introduced annual grasses. It is one of North America's most altered grasslands: less than 1% of native grassland remains and only about 4% is protected.
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Use this as the broad planting pattern for the region: Temperate prairies, steppes, and pampas of grasses and forbs with few trees, under continental climates of hot summers and cold winters. Their deep, fertile soils have made them among the most extensively converted biomes for agriculture. For garden decisions, pair that context with the plant list below, then narrow by your site's light, water, soil, and mature-size constraints.
°C
°F
Range & origins
Marker placed inside the RESOLVE 2017 polygon at 37.3°N, 120.6°W.
Region through time
Modern footprint
RESOLVE 2017 maps 17,943 sq mi
This boundary is a modern ecological footprint for California Central Valley grasslands, not a permanent line on the planet. It is useful for today's plant and wildlife context because it follows recurring vegetation, climate, landform, and disturbance patterns.
The region sits in the Nearctic realm and is classed as temperate grasslands, savannas & shrublands. Elevation, moisture, fire, soils, coasts, and human land use can all make the real landscape more varied than a single map color suggests.
Change pressure
Nature Imperiled
Plotwright shows this as the current RESOLVE footprint. Over decades to centuries, warming, disturbance, invasive species, land use, and restoration can move the living edge of a region even when the reference map stays fixed.
Climate zones
USDA zone range (now)
6a-10a
USDA
What seed packets and nursery tags reference. Coldest-day survival semantics.
Plotwright projection (2041–2070)
7b-12b
Plotwright
Where the winter climate trajectory points by mid-century.
Heat zones
Loading AHS heat-zone data for this region marker point...
Average warming this ecoregion is on track for: +3.1°F by mid-century. Current-trajectory scenario · climate data sampled across 10 of 10 points within this ecoregion's bounding box.
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 369 of 369 climate-fit plants for this region.
Reliable climate fits
Good bets for now and later
363 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.
Yucca filamentosa
Adam's needle
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 5-8 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.
Shrub
Full sun / Part shade
Low water
Zones 5a-10b
Climate: broad
+5
Shrub
Full sun / Part shade
Low water
Zones 5a-10b
Climate: broad
Structure
Focal point
Border
+3
Structure
Focal point
Border
Tagetes erecta
African marigold
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 12-48 inches 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.
Annual
Full sun / Part shade
Low water
Zones 2a-11b
Climate: moderate
+5
Annual
Full sun / Part shade
Low water
Zones 2a-11b
Climate: moderate
Border
Focal point
Container
Pollinator
+4
Border
Focal point
Container
Pollinator
Rubus allegheniensis
Allegheny blackberry
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.
Shrub
Full sun / Part sun
Moderate water
Zones 3a-8b
Climate: broad
+5
Shrub
Full sun / Part sun
Moderate water
Zones 3a-8b
Climate: broad
Edible
Pollinator
Structure
+3
Edible
Pollinator
Structure
Pachysandra procumbens
Allegheny spurge
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.
Perennial
Part shade
Consistent moisture
Zones 5a-9b
Climate: moderate
+5
Perennial
Part shade
Consistent moisture
Zones 5a-9b
Climate: moderate
Border
Filler
+2
Border
Filler
Thuja occidentalis
American arborvitae
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 40-60 feet but cultivated plants typically stay near 20-30 feet; small urn-shaped cones and dense evergreen cover make it valuable food and shelter for birds.
Tree
Full sun / Part sun / Part shade
Consistent moisture
Zones 2a-7b
Climate: broad
+5
Tree
Full sun / Part sun / Part shade
Consistent moisture
Zones 2a-7b
Climate: broad
Structure
Focal point
Border
+3
Structure
Focal point
Border
Tilia americana
American basswood
A medium-to-large native shade tree of central and eastern North America, reaching 50-80 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.
Tree
Full sun / Part sun / Part shade
Moderate water
Zones 2a-8b
Climate: broad
+5
Tree
Full sun / Part sun / Part shade
Moderate water
Zones 2a-8b
Climate: broad
Structure
Focal point
Pollinator
+3
Structure
Focal point
Pollinator
Castanea dentata
American chestnut
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.
Tree
Full sun / Part shade
Moderate water
Zones 5a-8b
Climate: narrow
+5
Tree
Full sun / Part shade
Moderate water
Zones 5a-8b
Climate: narrow
Structure
Focal point
Edible
+3
Structure
Focal point
Edible
Sambucus canadensis
American elderberry
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 5-12 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.
Shrub
Full sun / Part sun / Part shade
Consistent moisture
Zones 3-9
Climate: broad
+5
Shrub
Full sun / Part sun / Part shade
Consistent moisture
Zones 3-9
Climate: broad
Structure
Edible
Pollinator
Focal point
+4
Structure
Edible
Pollinator
Focal point
Teucrium canadense
American germander
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.
Perennial
Full sun / Part shade
Consistent moisture
Zones 4a-9b
Climate: moderate
+5
Perennial
Full sun / Part shade
Consistent moisture
Zones 4a-9b
Climate: moderate
Pollinator
Filler
+2
Pollinator
Filler
Corylus americana
American hazelnut
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.
Shrub
Full sun / Part sun / Part shade
Moderate water
Zones 4a-9b
Climate: broad
+5
Shrub
Full sun / Part sun / Part shade
Moderate water
Zones 4a-9b
Climate: broad
Structure
Edible
Pollinator
+3
Structure
Edible
Pollinator
Ilex opaca
American holly
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 15-30 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.
Tree
Full sun / Part sun / Part shade
Consistent moisture
Zones 5a-9b
Climate: broad
+5
Tree
Full sun / Part sun / Part shade
Consistent moisture
Zones 5a-9b
Climate: broad
Focal point
Structure
Pollinator
+3
Focal point
Structure
Pollinator
Ostrya virginiana
American hophornbeam
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.
Tree
Full sun / Part shade
Moderate water
Zones 3a-9b
Climate: broad
+5
Tree
Full sun / Part shade
Moderate water
Zones 3a-9b
Climate: broad
Structure
Focal point
+2
Structure
Focal point
Diospyros virginiana
American persimmon
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.
Tree
Full sun / Part sun / Part shade
Moderate water
Zones 4a-9b
Climate: broad
+5
Tree
Full sun / Part sun / Part shade
Moderate water
Zones 4a-9b
Climate: broad
Focal point
Structure
Edible
Pollinator
+4
Focal point
Structure
Edible
Pollinator
Prunus americana
American plum
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.
Tree
Full sun / Part shade
Low water
Zones 3a-8b
Climate: broad
+5
Tree
Full sun / Part shade
Low water
Zones 3a-8b
Climate: broad
Focal point
Structure
Pollinator
+3
Focal point
Structure
Pollinator
Rubus idaeus
American red raspberry
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.
Shrub
Full sun
Moderate water
Zones 4a-8b
Climate: broad
+5
Shrub
Full sun
Moderate water
Zones 4a-8b
Climate: broad
Edible
+1
Edible
Liquidambar styraciflua
American sweetgum
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.
Tree
Full sun
Moderate water
Zones 5a-9b
Climate: broad
+5
Tree
Full sun
Moderate water
Zones 5a-9b
Climate: broad
Focal point
Structure
+2
Focal point
Structure
Platanus occidentalis
American sycamore
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.
Tree
Full sun / Part shade
Consistent moisture
Zones 4a-9b
Climate: broad
+5
Tree
Full sun / Part shade
Consistent moisture
Zones 4a-9b
Climate: broad
Focal point
Structure
+2
Focal point
Structure
Agastache foeniculum
Anise hyssop
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.
Perennial
Full sun / Part shade
Moderate water
Zones 4a-8b
Climate: moderate
+5
Perennial
Full sun / Part shade
Moderate water
Zones 4a-8b
Climate: moderate
Pollinator
Border
Edible
+3
Pollinator
Border
Edible
Hydrangea arborescens
Annabelle hydrangea
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.
Shrub
Part sun / Part shade
Consistent moisture
Zones 3a-9b
Climate: broad
+5
Shrub
Part sun / Part shade
Consistent moisture
Zones 3a-9b
Climate: broad
Focal point
Structure
+2
Focal point
Structure
Catharanthus roseus
Annual vinca
A tender perennial from Madagascar grown across temperate North America as a heat-loving summer annual — a mounding 6-18 inch plant in the dogbane family covered in flat five-lobed phlox-like flowers from June to frost. The species blooms rosy-pink to red with a darker mauve throat, and it shrugs off the hot, humid weather that wilts most bedding plants. Every part of the plant is poisonous: it is the natural source of the vinca alkaloids used in chemotherapy.
Annual
Full sun / Part shade
Moderate water
Zones 10a-11b
Climate: narrow
+5
Annual
Full sun / Part shade
Moderate water
Zones 10a-11b
Climate: narrow
Border
Filler
Container
+3
Border
Filler
Container
Malus domestica
Apple
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.
Tree
Full sun
Moderate water
Zones 5a-8b
Climate: narrow
+5
Tree
Full sun
Moderate water
Zones 5a-8b
Climate: narrow
Edible
Focal point
Structure
+3
Edible
Focal point
Structure
Prunus armeniaca
Apricot
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.
Tree
Full sun
Moderate water
Zones 5a-8b
Climate: narrow
+5
Tree
Full sun
Moderate water
Zones 5a-8b
Climate: narrow
Focal point
Edible
Structure
+3
Focal point
Edible
Structure
Symphyotrichum oblongifolium
Aromatic aster
A native central + eastern US perennial with intensely aromatic foliage when crushed and dense clouds of small blue-purple flowers in late fall — often the latest-blooming aster in the eastern flora. Drought + clay tolerant; among the toughest native fall pollinator plants.
Perennial
Full sun
Moderate water
Zones 3a-8b
Climate: broad
+5
Perennial
Full sun
Moderate water
Zones 3a-8b
Climate: broad
Pollinator
Border
+2
Pollinator
Border
Viburnum dentatum
Arrowwood viburnum
A native eastern + central North American multi-stemmed deciduous shrub with dentate (toothed) foliage, white spring flower clusters, blue-black drupes, and reliable fall color. Especially valued for wildlife — among the most-cited native shrubs for fall-migration bird forage.
Shrub
Full sun / Part shade
Moderate water
Zones 2a-8b
Climate: broad
+5
Shrub
Full sun / Part shade
Moderate water
Zones 2a-8b
Climate: broad
Structure
Pollinator
Border
+3
Structure
Pollinator
Border
Showing 24 of 363 plants. Search above to narrow the list.
Good now, not later
Good now, less certain later
4 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.
Apium graveolens var. dulce
Celery
A cool-season biennial vegetable in the carrot family (Apiaceae), grown as an annual for its crisp, edible ribbed leaf stalks. Apium graveolens is native to temperate Mediterranean Europe, Asia, and Africa — not North America. It demands rich, consistently moist soil and steady cool temperatures (60-75°F); heat and drought turn the stalks stringy and bitter, which is why it is one of the more finicky garden vegetables.
Vegetable
Full sun
Consistent moisture
Zones 3a-6b
Climate: narrow
+5
Vegetable
Full sun
Consistent moisture
Zones 3a-6b
Climate: narrow
Edible
+1
Edible
Pseudotsuga menziesii
Douglas fir
A very large Pacific Northwest conifer — 40-80 feet in cultivation but topping 300 feet in the wild — and one of the most important timber trees in North America. Unique forked, trident-shaped cone bracts that protrude between the scales distinguish it from every other conifer. Flat, spirally-arranged dark green needles are fragrant when bruised and leave raised circular scars on the twigs.
Tree
Full sun
Consistent moisture
Zones 4-6
Climate: narrow
+5
Tree
Full sun
Consistent moisture
Zones 4-6
Climate: narrow
Structure
Focal point
+2
Structure
Focal point
Populus tremuloides
Quaking aspen
The most widely distributed tree in North America — a slender, cool-climate deciduous tree famous for nearly round leaves on flattened stalks that flutter ("quake") in the lightest breeze and turn brilliant golden yellow in fall. Smooth greenish-white bark whitens to chalky white with black warty patches as it ages. In the wild, aspens grow in clonal groves rising from one shared root system, so an entire grove can be a single genetic individual, all male or all female.
Tree
Full sun
Consistent moisture
Zones 1a-6b
Climate: broad
+5
Tree
Full sun
Consistent moisture
Zones 1a-6b
Climate: broad
Structure
Focal point
+2
Structure
Focal point
Asarum canadense
Wild ginger
A native eastern North American clump-forming deciduous perennial with heart-shaped foliage and hidden ground-level maroon flowers (pollinated by ground-dwelling beetles + flies). Forms dense colonies via rhizomes. Aromatic rhizome was historically used as a ginger substitute by Indigenous peoples + colonial settlers (true ginger is unrelated tropical Zingiber).
Perennial
Part shade
Consistent moisture
Zones 4a-6b
Climate: narrow
+5
Perennial
Part shade
Consistent moisture
Zones 4a-6b
Climate: narrow
Filler
+1
Filler
Future climate matches
Likely better as winters warm
2 plants
These plants are not the best current fit, but the mid-century projection moves this region toward their comfort range.
Swietenia macrophylla
Bigleaf mahogany
The premier true mahogany and one of the most commercially important tropical hardwoods on Earth: a very large neotropical timber tree that reaches roughly 100-150 feet with a broad, spreading, rounded crown, pinnately compound leaves, and reddish-brown heartwood prized for fine furniture and instruments. Honesty first: this is a knowledge and conservation entry, not a plant most people can or should grow. It is a frost-tender tropical giant hardy only in USDA zones 10b-12b, native to the neotropics from southern Mexico through Central America into Amazonian South America, with no role as a temperate-garden ornamental. More important than any landscape use is its conservation status — decades of overharvest for that famous mahogany timber have made it conservation-sensitive, and it is listed on CITES Appendix II, meaning international trade is regulated to keep harvest from driving the species toward extinction. Include it for its story and its scale, and source any wood or plant material only through legal, certified, sustainable channels.
Tree
Full sun
Moderate water
Zones 10b-12b
Climate: narrow
+5
Tree
Full sun
Moderate water
Zones 10b-12b
Climate: narrow
Structure
Focal point
+2
Structure
Focal point
Epipremnum aureum
Golden pothos
A vigorous tropical climbing and trailing vine grown almost everywhere as an easy-care houseplant, prized for glossy, heart-shaped leaves marbled and streaked with golden-yellow variegation. In the tropics it scrambles up tree trunks by aerial roots and can climb 13-40 feet, with juvenile leaves enlarging dramatically as it ascends; indoors, kept in a pot or trailing from a shelf, it stays only inches tall and a few feet long. It tolerates low light and infrequent watering better than almost any other foliage plant, which is why it is a beginner favorite. Native to the Society Islands of French Polynesia and now naturalized across the tropics, it is hardy outdoors only in frost-free climates (roughly USDA 10b-12b) and is an aggressive invasive weed where it escapes. All parts are toxic if chewed or eaten.
Perennial
Part shade
Low water
Zones 10b-12b
Climate: narrow
+5
Perennial
Part shade
Low water
Zones 10b-12b
Climate: narrow
Container
Filler
Structure
+3
Container
Filler
Structure
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.
Climate-resilient · 2 plants
Bright shade foundation
A part-shade planting with shrub structure and low foliage contrast.
Annabelle hydrangea
Coral bells
+2
Annabelle hydrangea
Coral bells
+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
Black-eyed Susan
Wild bergamot
Sweet Joe-Pye weed
Cutleaf coneflower
New England aster
+8
Switchgrass
Little bluestem
Common milkweed
Black-eyed Susan
Wild bergamot
Sweet Joe-Pye weed
Cutleaf coneflower
New England aster
Climate-resilient · 3 plants
Kitchen patio planters
A compact edible collection for containers, patios, and near-door harvesting.
Genovese basil
Lacinato kale
Coral bells
+3
Genovese basil
Lacinato kale
Coral bells
+2
Climate-resilient · 6 plants
Mediterranean drought-tolerant edible
A low-water edible palette of culinary herbs + a hardy grape for hot dry sunny sites. Mediterranean-origin plants thrive on neglect; their primary failure mode is overwatering, not underwatering.
English lavender
Rosemary
Garden sage
Oregano
Common thyme
Fox grape
+6
English lavender
Rosemary
Garden sage
Oregano
Common thyme
Fox grape
+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
+9
Butterfly weed
Common milkweed
Purple coneflower
Wild bergamot
Scarlet bee balm
Little bluestem
Sweet Joe-Pye weed
Swamp sunflower
Smooth blue aster
Climate-resilient · 4 plants
Sunny pollinator border
A durable sunny border with summer bloom, seedheads, and upright winter texture.
English lavender
Purple coneflower
Black-eyed Susan
Switchgrass
+4
English lavender
Purple coneflower
Black-eyed Susan
Switchgrass
Similar planting regions
Browse other regions with a similar hot, dry-summer rhythm. Their plant lists can suggest species and combinations worth comparing.
RESOLVE 386 - Nearctic
Canadian Aspen forests and parklands
The Canadian Aspen forests and parklands — the transitional belt between the northern prairies to the south and the boreal forest to the north, covering southern Saskatchewan, southern + central Alberta, southwestern Manitoba, and small extensions into Montana and the Dakotas. Quaking aspen groves interspersed with grassland; the ecoregion functioned historically as a fire-managed mosaic, and woody encroachment under fire suppression has shifted the balance toward more closed aspen forest.
Temperate Grasslands, Savannas & Shrublands
Zones 6b-8b
+6.7°F by 2070
126,247 sq mi
Editorial profile
NNH tier 4
RESOLVE 388 - Nearctic
Central Tallgrass prairie
The Central Tallgrass Prairie — the historical core of the North American grassland biome, covering Iowa, northern Missouri, Illinois west of the Indiana hardwood line, eastern Kansas, eastern Nebraska, and the southern parts of Wisconsin and Minnesota. Big bluestem, Indiangrass, switchgrass, and side-oats grama on the dominant matrix; the deep-rooted forb diversity (Echinacea, Liatris, Silphium, Baptisia, Asclepias) underpins much of the modern native-plant-garden palette. Less than 4% of the original tallgrass remains; conservation collections matter disproportionately.
Temperate Grasslands, Savannas & Shrublands
Zones 7b-10a
+5.9°F by 2070
132,114 sq mi
Editorial profile
NNH tier 4
RESOLVE 387 - Nearctic
Central US forest-grasslands transition
The Central US forest-grasslands transition is an ecotone stretching across the central Midwest—including Illinois, Indiana, Wisconsin, Missouri, Iowa, and Kentucky—where the eastern deciduous forests of the United States give way to the tallgrass prairies of the eastern Great Plains. Its presettlement landscape was a mosaic of oak savanna, bluestem prairie, and oak-hickory and maple-basswood forest, with glacial moraines, dunes, fens, and marshes common in the Chicago Lake Plain along Lake Michigan. The climate ranges from humid warm continental to humid cold temperate. Now encompassing major metropolitan areas including Chicago and Milwaukee and reaching south toward St. Louis, the region has lost over 95% of its presettlement vegetation, with only about 3% protected.
Temperate Grasslands, Savannas & Shrublands
Zones 8a-9b
+6.5°F by 2070
88,084 sq mi
NNH tier 4
RESOLVE 389 - Nearctic
Central-Southern US mixed grasslands
The Central-Southern US Mixed Grasslands run north to south from central Nebraska through Kansas and Oklahoma into north-central Texas, a vast prairie marking the ecological transition from tallgrass to shortgrass plains. Its flat-to-rolling, wind-deposited terrain (about 400-1,220 m elevation) carries native mixed-grass prairie of tallgrasses such as big bluestem and Indiangrass alongside shorter grasses, and OneEarth notes it holds the greatest floristic complexity of all North American grasslands. The climate is subhumid warm continental to warm temperate, with annual precipitation ranging from roughly 300 to 812 mm. Each spring more than 500,000 sandhill cranes (about 80% of the world's population) gather along Nebraska's Platte River, though only about 1% of the ecoregion is protected.
Temperate Grasslands, Savannas & Shrublands
Zones 8b-11a
+4.0°F by 2070
106,215 sq mi
NNH tier 4
RESOLVE 390 - Nearctic
Cross-Timbers savanna-woodland
The Cross-Timbers savanna-woodland — the post-oak / blackjack-oak savanna belt running roughly southwest-to-northeast through central Texas, central Oklahoma, and southeastern Kansas. Forms the ragged forested western edge of the eastern hardwoods before the Great Plains take over to the west. Heavily fragmented by agriculture and urban Texas / Oklahoma metro growth.
Temperate Grasslands, Savannas & Shrublands
Zones 9b-11a
+4.1°F by 2070
34,070 sq mi
Editorial profile
NNH tier 4
RESOLVE 391 - Nearctic
Edwards Plateau savanna
The Edwards Plateau savanna — the limestone-and-juniper country of central Texas, anchored by the city of Austin and the broader Texas Hill Country. Live oak, post oak, ashe juniper, and Texas red oak on the uplands; native bunchgrasses and a rich spring wildflower flush (bluebonnet, Indian paintbrush, Mexican hat) on the open savanna. Karst hydrology — the Edwards Aquifer underlies the ecoregion — is regionally load-bearing for water supply.
Temperate Grasslands, Savannas & Shrublands
Zones 10b-11b
+4.1°F by 2070
28,968 sq mi
Editorial profile
NNH tier 2
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
7 · Central California Valley
Source: USGS / EPA via Omernik (1987).
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.). California Central Valley grasslands (California Central Valley grasslands). Retrieved 2026, June 14, from https://plotwright.garden/regions/resolve-385
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.)