Arctic
Aberdeen Plains
Aberdeen Plains is a northern plains ecoregion where the growing season is short and conditions can be harsh for gardening.
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Regional habitat profiles
Regions Database
Explore regional pollinator profiles, climate notes, and the plants and species most important to each area.
182 regions found
Filters apply automatically
Prairie
Abitibi Plains and Riviere Rupert Plateau
The Abitibi Plains and Riviere Rupert Plateau is largely defined by boreal forest, wetlands, and extensive freshwater networks.
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Forest
Ahklun and Kilbuck Mountains
The Ahklun and Kilbuck Mountains are a rugged, high-relief landscape where plants and pollinators must make the most of a short, often cool season.
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Forest
Alaska Peninsula Mountains
The Alaska Peninsula Mountains are a rugged, coastal-influenced mountain region where conditions can be challenging for traditional gardening.
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Interior
Alaska Range
The Alaska Range is a high, cold mountain landscape where plants and pollinators must make the most of a short summer.
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Coastal
Aleutian Islands
The Aleutian Islands are a maritime, wind-shaped island chain with short, challenging growing conditions and many exposed sites.
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Forest
Algonquin/Southern Laurentians
Algonquin/Southern Laurentians is a forest-and-water landscape where many pollinators rely on sunny edges, openings, wetlands, and flowering understories rather than deep shade.
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Arctic
Amundsen Plains
The Amundsen Plains are a northern Arctic plains region where the growing season is short and conditions are tough for typical home gardening.
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Arctic
Arctic Coastal Plain
The Arctic Coastal Plain is a tundra region where plants grow low to the ground and the flowering season is brief.
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Arctic
Arctic Foothills
The Arctic Foothills are a rugged transition zone where tundra landscapes meet rising hills and mountain fronts.
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Interior
Arizona/New Mexico Mountains
The Arizona/New Mexico Mountains are a “sky-island” style landscape: cooler, higher, and often greener than the surrounding lowlands.
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Interior
Arizona/New Mexico Plateau
The Arizona/New Mexico Plateau is a dry, high-country landscape where plants and pollinators are adapted to tough conditions—sun, wind, and long dry stretches.
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Interior
Arkansas Valley
The Arkansas Valley is a river-influenced landscape where soils, moisture, and sun exposure can change quickly from one spot to the next.
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Prairie
Aspen Parkland/Northern Glaciated Plains
The Aspen Parkland/Northern Glaciated Plains is a “mosaic” landscape—open grassland mixed with aspen groves, wetlands, and edges where habitats meet.
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Forest
Athabasca Plain and Churchill River Upland
Athabasca Plain and Churchill River Upland is a northern, boreal-leaning landscape where forests, wetlands, and river systems shape what can grow and when it blooms.
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Prairie
Atlantic Coastal Pine Barrens
Atlantic Coastal Pine Barrens are often defined by sandy soils, open sunny patches, and a mix of pine-dominated areas, shrublands, and wetland edges.
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Arctic
Baffin and Torngat Mountains
The Baffin and Torngat Mountains are a dramatic Arctic mountain region where life is adapted to cold, wind, and a very short season for growth.
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Arctic
Baffin Uplands
The Baffin Uplands are a High Arctic ecoregion where plants grow slowly and stay low, and where “garden-style” pollinator planting is often not practical.
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Interior
Baja California Desert
The Baja California Desert is a warm-desert region where life is adapted to drought, heat, and big swings in how much rain falls from year to year.
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Forest
Balsas Depression with Low Tropical Deciduous Forest and Xerophytic Shrub
This region is a tropical dry-forest landscape shaped by strong seasonality—longer dry stretches and a greener, more productive period when rains arrive.
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Arctic
Banks Island and Amundsen Gulf Lowlands
Banks Island and the Amundsen Gulf Lowlands are part of the Northern Arctic, where plants and insects must survive extreme cold, wind, and a very short season for growth and flowering.
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Interior
Blue Mountains
The Blue Mountains are a varied mountain-and-valley landscape where forests, meadows, and river corridors can sit close together.
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Interior
Blue Ridge
The Blue Ridge is a forested mountain region with big changes in sun, shade, moisture, and temperature over short distances.
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Interior
Boston Mountains
The Boston Mountains ecoregion is a mostly forested landscape of ridges, slopes, and stream valleys.
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Coastal
Bristol Bay-Nushagak Lowlands
The Bristol Bay–Nushagak Lowlands are tundra-leaning lowlands where wetlands, river corridors, and coastal conditions shape what can grow.
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Interior
Brooks Range/Richardson Mountains
The Brooks Range/Richardson Mountains ecoregion is a high-latitude mountain tundra landscape where plants grow low to the ground and the season for flowers can be brief.
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Coastal
California Central Coast
The California Central Coast is a patchwork of ocean-edge bluffs, valleys, oak woodlands, chaparral, and coastal mountain habitats.
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Coastal
California Central Valley
The California Central Valley is a wide, mostly flat interior valley with big rivers, working farms, and growing cities.
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Interior
California Deserts & Southern Nevada (Mojave)
The Mojave is a warm-desert region where life is shaped by limited water, intense sun, and big temperature swings.
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Prairie
California Southern Coast
The California Southern Coast is a Mediterranean-climate coastal region where many plants are adapted to wet seasons followed by long dry stretches.
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Interior
Canadian Rockies
The Canadian Rockies are a rugged mountain region with big elevation changes, cold winters, and pockets of warmer, sunnier valley habitat.
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Interior
Cascades
The Cascades ecoregion is defined by mountains, forests, and dramatic “up-and-down” terrain that creates many local growing conditions.
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Interior
Central American Sierra Madre with Conifer, Oak, and Mixed Forests
This region is defined by Central American mountain forests where conifers and oaks can be major features, alongside mixed forest communities.
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Arctic
Central Angava Peninsula and Ottawa and Belcher Islands
This ecoregion is part of the Southern Arctic, where plants and pollinators must make the most of a short, intense growing season.
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Interior
Central Appalachians
The Central Appalachians are largely forested, with a patchwork of sunny edges, meadows, roadsides, and stream corridors where flowers can thrive.
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Interior
Central Basin and Range
The Central Basin and Range is a wide-open landscape of desert basins and mountain ranges, where water and shade strongly shape what can grow.
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Prairie
Central Corn Belt Plains
The Central Corn Belt Plains is a plains ecoregion where much of the land has been shaped by farming and settlement, but pollinator habitat can still be created in yards, school grounds, parks, field edges, and community spaces.
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Prairie
Central Great Plains
The Central Great Plains is a prairie-focused ecoregion where grasses and wildflowers can thrive when matched to local moisture and soil conditions.
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Prairie
Central Irregular Plains
This ecoregion sits within the Temperate Prairies and is often associated with open landscapes, grassland-leaning plant communities, and human-shaped land use.
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Interior
Central Laurentians and Mecatina Plateau
The Central Laurentians and Mecatina Plateau is typically a softwood-shield region with forests, bogs/fens, rocky openings, and water-rich landscapes.
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Forest
Chiapas Depression with Low Deciduous and Medium Semi-Deciduous Tropical Forest
This region is a tropical dry-forest landscape where plants and animals are adapted to pronounced seasonal dryness.
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Forest
Chiapas Highlands with Conifer, Oak, and Mixed Forest
This region is a highland landscape shaped by mountains and forests—often a mix of conifers and oaks—with many “microclimates” created by elevation and terrain.
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Interior
Chihuahuan Desert
The Chihuahuan Desert is a place of extremes: dry stretches, sudden flushes of bloom after moisture, and a patchwork of habitats shaped by elevation and water.
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Interior
Chilcotin Ranges and Fraser Plateau
The Chilcotin Ranges and Fraser Plateau includes a patchwork of plateaus, forests, grass-leaning openings, and river corridors.
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Interior
Clear Hills and Western Alberta Uplands
Clear Hills and Western Alberta Uplands is a boreal upland landscape where forests, wet areas, and stream corridors shape what can grow.
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Forest
Coast Range
The Coast Range is a coastal mountain landscape shaped by steep terrain, forested slopes, and valleys.
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Coastal
Coastal Hudson Bay Lowland
The Coastal Hudson Bay Lowland is a cold, flat coastal region where wet ground and a short summer shape what can grow.
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Prairie
Coastal Plain and Hills with High and Medium-High Evergreen Tropical Forest and Wetlands
This ecoregion is shaped by tropical wet evergreen forests and wetlands across coastal plains and nearby hills.
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Prairie
Coastal Plain with Low Tropical Deciduous Forest
Coastal Plain with Low Tropical Deciduous Forest is a tropical coastal lowland landscape where plants are adapted to seasonal dryness.
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Forest
Coastal Western Hemlock-Sitka Spruce Forests
Coastal Western Hemlock–Sitka Spruce forests are evergreen, moisture-loving coastal forests with deep shade in many places and brighter “edge” habitats where sunlight reaches the ground.
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Interior
Colorado Plateaus
The Colorado Plateaus are a “cold desert” region where plants and animals are adapted to drought, intense sun, and variable temperatures.
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Interior
Columbia Mountains/Northern Rockies
The Columbia Mountains/Northern Rockies region is a landscape of big elevation changes—forests, meadows, and river corridors stitched between steep slopes and high ridgelines.
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Interior
Columbia Plateau
The Columbia Plateau is a “cold desert” ecoregion where water-wise plants and tough, sun-loving habitats are common.
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Forest
Cook Inlet
Cook Inlet is a coastal region where ocean air, river corridors, and nearby mountains create many small “pockets” of growing conditions.
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Interior
Copper Plateau
Copper Plateau is a boreal-cordillera plateau region where plants and pollinators often have a narrow window to grow, bloom, and reproduce.
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Interior
Coppermine River and Tazin Lake Uplands
The Coppermine River and Tazin Lake Uplands sit within the Taiga Shield, where rock, water, and boreal vegetation shape what can grow.
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Interior
Cross Timbers
Cross Timbers landscapes are known for their mix of open grassland and tough, drought-tolerant woodland—especially along edges where sunlight and shelter meet.
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Interior
Cypress Upland
Cypress Upland landscapes are shaped by elevation, exposure, and patchy moisture—meaning one yard can be quite different from another just a short distance away.
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Prairie
Driftless Area
The Driftless Area’s hills, bluffs, and river valleys create a patchwork of sunny slopes, shaded woods, and river-side edges—great variety for pollinator habitat when native plants are present.
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Prairie
East Central Texas Plains
The East Central Texas Plains are often a patchwork of open sunny spaces and scattered trees, with seasonal wildflowers when conditions line up.
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Interior
Eastern Cascades Slopes and Foothills
The Eastern Cascades Slopes and Foothills are a transition zone: mountain-influenced landscapes that often lean dry, with big differences from one hillside or creek corridor to the next.
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Prairie
Eastern Corn Belt Plains
The Eastern Corn Belt Plains is a working landscape where farms, towns, roads, and remaining natural areas sit side-by-side.
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Prairie
Eastern Great Lakes and Hudson Lowlands
This region includes a wide range of “everyday” places—yards, school grounds, parks, shorelines, and wet areas—where small habitat improvements can add up.
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Interior
Edwards Plateau
The Edwards Plateau is an upland landscape where water can be the limiting factor for plants and pollinators, especially away from streams and springs.
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Arctic
Ellesmere and Devon Islands Ice Caps
This ecoregion is primarily permanent ice and snow, with little to no practical space for gardening or planting pollinator habitat on the ice caps themselves.
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Arctic
Ellesmere Mountains and Eureka Hills
The Ellesmere Mountains and Eureka Hills are an extreme Arctic landscape where plants grow slowly and flowering opportunities are limited.
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Prairie
Erie Drift Plain
The Erie Drift Plain is a glaciated lowland region where soils and landforms often support productive plant growth when space is available.
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Interior
Flint Hills
The Flint Hills are a prairie landscape where grasses and wildflowers can form large, connected habitats when managed well.
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Arctic
Foxe Uplands
Foxe Uplands is a Northern Arctic ecoregion where the environment is tough on plants: cold, wind, and a short growing season make typical “pollinator gardening” difficult in many places.
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Prairie
Great Bear Plains
The Great Bear Plains is a taiga-plains landscape where water, soil, and exposure strongly shape what can grow.
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Arctic
Gulf of Boothia and Foxe Basin Plains
This Northern Arctic plains ecoregion is defined by cold temperatures, short summers, and landscapes where plants grow low to the ground.
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Forest
Gulf of Mexico Coastal Plain with Wetlands and High Tropical Rain Forest
This region is defined by water: wetlands, wet soils, and lush tropical rain forest conditions in parts of the Gulf coastal plain.
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Prairie
Hay and Slave River Lowlands
The Hay and Slave River Lowlands are a northern lowland landscape where rivers and wetlands strongly shape what can grow.
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Forest
Hayes River Upland and Big Trout Lake
Hayes River Upland and Big Trout Lake sits in the boreal “softwood shield” world of conifers, water, and wetlands.
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Prairie
High Plains
The High Plains are grassland-focused landscapes where water can be the main limiting factor for gardening.
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Interior
Hills and Interior Plains with Xeric Shrub and Mesquite Low Forest
This region is a dryland landscape of interior plains and low hills where plants are adapted to heat, drought, and variable rainfall.
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Forest
Hills and Sierra with Low Tropical Deciduous Forest and Oak Forest
This region is a mosaic of tropical deciduous forest and oak forest across hills and sierras, creating many “edge” habitats where different plant communities meet.
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Forest
Hills and Sierras with Conifer, Oak, and Mixed Forests
This region is a mosaic of conifer forest, oak woodland, and mixed stands, often broken up by meadows, rocky openings, and forest edges.
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Forest
Hills with High and Medium Semi-Evergreen Tropical Forest
This region is defined by tropical wet-forest conditions on hilly terrain, where semi-evergreen forests can create a layered habitat of canopy, understory, and forest-edge flowering plants.
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Forest
Hills with Medium and High Evergreen Tropical Forest
Hills with Medium and High Evergreen Tropical Forest is a wet tropical forest landscape shaped by slopes, valleys, and dense evergreen tree cover.
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Interior
Hudson Bay and Hames Lowlands
The Hudson Bay and Hames Lowlands are defined by wide-open lowlands and large wetland landscapes.
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Prairie
Huron/Erie Lake Plains
The Huron/Erie Lake Plains are generally low, lake-influenced landscapes where gardens, parks, roadsides, and remaining natural areas can all play a role in supporting pollinators.
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Interior
Idaho Batholith
The Idaho Batholith ecoregion is a rugged, mountainous landscape where forests, meadows, and river corridors create a patchwork of habitats.
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Interior
Interior Bottomlands
Interior Bottomlands are low-lying parts of Alaska’s boreal interior where water and soils often shape what can grow.
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Interior
Interior Forested Lowlands and Uplands
Interior Forested Lowlands and Uplands is a boreal interior landscape where forests, wetlands, and river corridors create pockets of flowering habitat.
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Interior
Interior Highlands and Klondike Plateau
Interior Highlands and Klondike Plateau is a northern inland region where elevation, slope direction, and river valleys create many “small zones” for plants.
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Prairie
Interior Plains and Piedmonts with Grasslands and Xeric Shrub
This region is generally shaped by open grasslands and drought-tolerant shrub communities, with greener pockets where water collects.
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Prairie
Interior Plateau
The Interior Plateau is an inland, upland-style part of the Southeastern USA Plains where soils, sun exposure, and moisture can vary a lot across short distances.
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Prairie
Interior River Valleys and Hills
Interior river valleys and hills often have a “patchwork” feel: sunny openings, wooded edges, and river-side areas that stay greener longer.
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Prairie
Jalisco/Nayarit Hills and Plains with Medium Semi-Evergreen Tropical Forest
This region is characterized by hills and plains that can support medium semi-evergreen tropical forest—green for much of the year, but still influenced by seasonal moisture.
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Interior
Kazan Rvier and Selwyn Lake Uplands
Kazan Rvier and Selwyn Lake Uplands is a northern taiga-shield landscape of rock, water, and hardy vegetation.
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Interior
Klamath Mountains
The Klamath Mountains are a complex, mountainous landscape where forests, rocky openings, and river corridors create many different growing conditions close together.
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Interior
La Grande Hills and New Quebec Central Plateau
La Grande Hills and the New Quebec Central Plateau are part of the Taiga Shield—often rocky, lake-rich, and shaped by cold-season conditions.
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Forest
La Laguna Mountains with Oak and Conifer Forests
La Laguna Mountains with Oak and Conifer Forests is a mountain ecoregion where oak woodlands and conifer forests create layered habitat—trees overhead, shrubs and wildflowers below, and leaf litter and soil life underneath.
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Prairie
Lake Erie Lowland
The Lake Erie Lowland is a Great Lakes lowland landscape where people live, garden, and farm alongside pockets of natural habitat.
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Interior
Lake Manitoba and Lake Agassiz Plain
Lake Manitoba and the Lake Agassiz Plain sit within the Temperate Prairies and are defined by flat former lakebed landscapes, wetlands, and open country.
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Interior
Lake Nipigon and Lac Seul Upland
Lake Nipigon and Lac Seul Upland is a lake-and-forest shield region where conifer-dominated woods, wetlands, and rocky openings create a patchwork of habitats.
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Arctic
Lancaster and Borden Peninsula Plateaus
The Lancaster and Borden Peninsula Plateaus are part of the Northern Arctic, where cold, wind, and a short growing season limit how much flowering habitat can develop.
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Interior
Los Cabos Plains and Hills with Low Tropical Deciduous Forest and Xeric Shrub
This region is a mix of dry-season tropical woodland (often leafless in the driest months) and hardy shrubland adapted to limited moisture.
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Forest
Los Tuxtlas Sierra with High Evergreen Tropical Forest
Los Tuxtlas Sierra with High Evergreen Tropical Forest is a lush, moisture-rich tropical forest landscape shaped by mountains, steep slopes, and dense evergreen canopy.
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Forest
Lower Mainland & Puget Lowland
The Lower Mainland & Puget Lowland is a busy, people-centered coastal lowland with rivers, shorelines, and patches of forest and meadow.
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Interior
Mackenzie and Selwyn Mountains
The Mackenzie and Selwyn Mountains are a high-latitude mountain landscape where plants and pollinators must make the most of a short warm season.
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Coastal
Madrean Archipelago
The Madrean Archipelago is known for its patchwork of habitats created by mountains separated by lower, drier areas.
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Prairie
Maine/New Brunswick Plains and Hills
The Maine/New Brunswick Plains and Hills region is shaped by mixed wood forests, open edges, wetlands, and human-made landscapes like yards, roadsides, and farms.
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Prairie
Maritime Lowlands
The Maritime Lowlands are generally low, coastal-influenced landscapes where forests, wetlands, and human-settled areas sit close together.
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Prairie
Mid-Boreal Lowland and Interlake Plains
The Mid-Boreal Lowland and Interlake Plains is a boreal-plain landscape where forests and wetlands shape what can grow and when flowers appear.
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Interior
Mid-Boreal Uplands and Peac-Wabaska Lowlands
Mid-Boreal Uplands and Peac-Wabaska Lowlands is a boreal-plain region where forests, wetlands, and open edges create a patchwork of habitats.
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Prairie
Middle Atlantic Coastal Plain
The Middle Atlantic Coastal Plain is a mostly low, water-influenced landscape where sandy soils, wetlands, and river systems shape what grows well.
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Interior
Middle Rockies
The Middle Rockies are defined by rugged terrain, big elevation changes, and many “pockets” of different growing conditions.
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Prairie
Mississippi Alluvial Plain
The Mississippi Alluvial Plain is a wide, fertile river-made landscape with wetlands, oxbows, bayous, and bottomland habitats where they remain.
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Prairie
Mississippi Valley Loess Plains
The Mississippi Valley Loess Plains are shaped by loess soils that can support rich plant communities when managed well.
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Forest
Nayarit and Sinaloa Plain with Low Thorn Tropical Forest
This region is generally a warm, seasonally dry-to-wet tropical landscape where plants may be adapted to drought, heat, and periodic rains.
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Interior
Nebraska Sand Hills
The Nebraska Sand Hills are a distinctive prairie landscape: sandy soils, rolling dunes, and wide-open skies, with wetter pockets in low areas.
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Coastal
Newfoundland Island
Newfoundland Island includes a mix of coastal landscapes, conifer-dominated forests, wetlands, and open barrens.
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Interior
North Cascades
The North Cascades are defined by big elevation changes, forested slopes, and river valleys that create many small habitat pockets.
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Interior
North Central Appalachians
The North Central Appalachians are known for forested hills, stream corridors, and a patchwork of openings where wildflowers can thrive.
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Prairie
North Central Hardwood Forests
North Central Hardwood Forests are known for mixed, mature-looking woodlands, forest edges, and a patchwork of wetlands and waterways across a populated region.
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Prairie
Northeastern Coastal Zone
The Northeastern Coastal Zone is shaped by ocean influence—salt air, shifting winds, and a patchwork of wetlands, forests, and human-built areas.
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Prairie
Northern Appalachian Plateau and Uplands
The Northern Appalachian Plateau and Uplands is a landscape of forested uplands, wet pockets, and stream and river corridors.
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Interior
Northern Appalachians and Atlantic Maritime Highlands
This region is a patchwork of forested mountains and uplands, with streams, wetlands, and openings that can be surprisingly rich in wildflowers.
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Interior
Northern Basin and Range
Northern Basin and Range landscapes are shaped by open basins, rugged ranges, and hardy native plants that can handle cold winters and dry stretches.
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Interior
Northern Lakes and Forests
Northern Lakes and Forests is a lake-rich, forested shield landscape where native wildflowers often thrive in sunny openings, shorelines, and edges rather than deep shade.
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Interior
Northern Minnesota Wetlands
Northern Minnesota Wetlands are defined by water: saturated soils, standing water, and plant communities adapted to wet conditions.
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Prairie
Northern Piedmont
The Northern Piedmont is a patchwork of wooded areas, stream corridors, and developed land, which can create many small opportunities for pollinator habitat—yards, school grounds, parks, and even balcony containers.
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Prairie
Northwestern Glaciated Plains
The Northwestern Glaciated Plains are open, prairie-like landscapes influenced by glacial history—think broad skies, grasses, and pockets of wetter ground where water collects.
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Prairie
Northwestern Great Plains
The Northwestern Great Plains is a grassland region where native plants are adapted to sun, wind, and periodic dryness.
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Forest
Northwestern Yucatan Plain with Low Tropical Deciduous Forest
This region is a tropical dry-forest landscape where many plants time their flowering and leaf growth around the wet season.
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Interior
Oglivie Mountains
The Oglivie Mountains ecoregion is a cold, mountainous part of the Taiga Cordillera where plant life is shaped by short summers, elevation, and shelter from wind.
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Interior
Ouachita Mountains
The Ouachita Mountains ecoregion is a ridge-and-valley landscape where forests, openings, and stream edges create many “small habitats” close together.
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Interior
Ozark Highlands
The Ozark Highlands are a patchwork of forests, woodland edges, open sunny areas, and stream corridors.
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Forest
Pacific and Nass Ranges
The Pacific and Nass Ranges are a mountainous part of Canada’s Marine West Coast Forest, shaped by steep terrain, river valleys, and coastal-influenced weather.
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Forest
Pacific Coastal Mountains
The Pacific Coastal Mountains are known for rugged terrain and forested landscapes influenced by the nearby ocean.
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Arctic
Parry Islands Plateau
The Parry Islands Plateau is a Northern Arctic ecoregion where cold, wind, and a short growing season make gardening and long-season blooms difficult in many places.
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Interior
Peel River and Nahanni Plateaus
The Peel River and Nahanni Plateaus ecoregion is a northern landscape of broad uplands, river-cut valleys, and hardy vegetation adapted to cold conditions.
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Prairie
Piedmont
The Piedmont is a region of rolling hills, creeks, and a patchwork of forests, fields, and neighborhoods.
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Prairie
Piedmont and Plains with Grasslands, Xeric Shrub, and Oak and Conifer Forests
This region blends open grasslands and dry shrublands with pockets of oak and conifer forest—so pollinator habitat can look very different from one hillside to the next.
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Prairie
Plain with Low and Medium Deciduous Tropical Forest
This region is characterized by tropical plains with forests that can look greener in the wet season and more open in the dry season as some trees shed leaves.
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Forest
Plain with Medium and High Semi-Evergreen Tropical Forest
This region is a tropical wet-forest plain with dense plant growth, layered canopy, and many flowering trees, shrubs, and understory plants.
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Arctic
Queen Maud Gulf and Chantrey Inlet Lowlands
This ecoregion is an Arctic lowland landscape where the season for flowering plants is short and highly weather-dependent.
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Interior
Ridge and Valley
Ridge and Valley landscapes create many “mini-habitats,” which can be great for pollinators when there’s a steady supply of flowers and safe nesting spots.
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Prairie
Coastal
Seward Peninsula
The Seward Peninsula sits within Alaska’s tundra ecoregions, where the growing season is short and conditions can be tough for conventional gardening.
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Interior
Sierra Madre Occidental with Conifer, Oak, and Mixed Forests
This is a mountainous forest-and-woodland region where pines and other conifers mix with many oaks and a wide variety of understory plants.
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Interior
Sierra Madre Oriental with Conifer, Oak, and Mixed Forests
This region is a mountainous mosaic of conifer stands, oak forests, and mixed woodlands—often with sunny openings, forest edges, and stream corridors that can be especially important for flowers.
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Interior
Sierra Nevada
The Sierra Nevada is a mountain region with a wide range of habitats—from foothill woodlands to conifer forests to high-elevation meadows.
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Forest
Sierras of Guerrero and Oaxaca with Conifer, Oak, and Mixed Forests
This is a highland forest region where conifers, oaks, and mixed forests create a patchwork of habitats.
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Forest
Sierras of Jalisco and Michoacán with Conifer, Oak, and Mixed Forests
This region is a set of temperate mountain landscapes where conifer, oak, and mixed forests create layered habitat—from sunny edges and clearings to shaded understories.
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Forest
Sinaloa and Sonora Hills and Canyons with Xeric Shrub and Low Tropical Deciduous Forest
This region is a mix of dry shrublands and low tropical deciduous forest shaped by hills, canyons, and seasonal water.
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Prairie
Sinaloa Coastal Plain with Low Thorn Tropical Forest and Wetlands
This region combines tropical dry-forest vegetation (often low and thorny) with wetlands and other water-influenced habitats on a coastal plain.
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Interior
Skeena-Omineca-Central Canadian Rocky Mountains
This is a Western Cordillera mountain region where forests, rivers, and open sunny edges create pockets of pollinator habitat.
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Interior
Smallwood Uplands
Smallwood Uplands is a northern taiga-shield landscape where water, rock, and forest shape what plants can thrive.
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Interior
Snake River Plain
The Snake River Plain is an open, often dry landscape where water availability strongly shapes what can grow.
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Interior
Sonoran Desert
The Sonoran Desert is a place of extremes: intense sun, long dry stretches, and bursts of life when rains arrive.
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Prairie
South Central Plains
This region is part of the Southeastern USA Plains and is often shaped by open landscapes, edges (like roadsides and field margins), and patches of natural habitat.
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Coastal
South Florida Coastal Plain (Everglades)
The South Florida Coastal Plain (Everglades) is a water-shaped landscape—wetlands, coastal edges, and seasonally changing water levels define what grows here.
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Forest
South Pacific Hills and Piedmonts with Low Tropical Deciduous Forest
This region is best known for tropical deciduous dry forest—woodlands that can look lush in the wet season and more open in the dry season when many trees drop leaves.
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Prairie
Southeastern Plains
The Southeastern Plains support a wide range of flowering plants and long bloom windows, which can be great for pollinators when habitat is available.
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Prairie
Southeastern Wisconsin Till Plains
Southeastern Wisconsin Till Plains is a mostly rolling, glacially influenced landscape where natural areas, neighborhoods, and farmland sit close together.
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Coastal
Southern California Mountains
The Southern California Mountains are a patchwork of slopes, canyons, and ridgelines where conditions can shift over short distances.
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Prairie
Southern Coastal Plain
The Southern Coastal Plain is a wide, lowland region with a strong coastal and river influence—think sandy or loamy soils in some places, wetter soils in others, and lots of habitat variety across short distances.
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Interior
Southern Rockies
This ecoregion is defined by mountain terrain, big elevation changes, and patchy habitats that can shift from dry, sunny slopes to cooler, moister pockets.
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Interior
Southwestern Appalachians
The Southwestern Appalachians are largely forested landscapes with a mix of sunny openings, edges, and stream corridors that can support a long season of flowering plants.
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Interior
Southwestern Tablelands
The Southwestern Tablelands is a prairie-influenced tableland region where water can be the main limiting factor for plants and pollinators.
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Prairie
Subarctic Coastal Plains
Subarctic Coastal Plains are open, tundra landscapes where plants must grow fast during a short summer.
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Arctic
Sverdrup Islands Lowland
The Sverdrup Islands Lowland is an extreme Arctic lowland environment where plants grow slowly and flowering opportunities can be limited.
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Coastal
Tamaulipas-Texas Semi-Arid Plain
The Tamaulipas–Texas Semi-Arid Plain is a sun-forward, often dry landscape where plants and animals are adapted to heat, variable rainfall, and tough soils.
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Prairie
Tehuantepec Canyon and Plain with Low Tropical Deciduous Forest and Low Thorn Forest
This region is part of Mexico’s tropical dry forests, where many plants are built for seasonal drought and then burst into growth and bloom when conditions are right.
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Interior
Texas Blackland Prairies
The Texas Blackland Prairies are prairie landscapes where native grasses and seasonal wildflowers can support pollinators when habitat is available.
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Interior
Thompson-Okanogan Plateau
This is a dry interior plateau where water-wise plants and tough, sun-loving wildflowers can shine.
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Interior
Ungava Bay Basin and George Plateau
The Ungava Bay Basin and George Plateau is a northern Taiga Shield landscape where the growing season is typically short and gardening can be challenging.
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Forest
Valleys and Depressions with Xeric Shrub and Low Deciduous Forest
Valleys and depressions in tropical dry forest regions can be surprisingly diverse: a few steps can take you from dry, scrubby slopes to slightly greener low deciduous forest pockets.
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Arctic
Victoria Island Lowlands
The Victoria Island Lowlands are an Arctic lowland ecoregion where extreme cold and a short growing season make conventional pollinator gardening difficult in many places.
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Interior
Wasatch and Uinta Mountains
The Wasatch and Uinta Mountains are defined by elevation, rugged terrain, and big differences between sunny slopes, shaded forests, and stream corridors.
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Interior
Watson Highlands
Watson Highlands is a northern, mountain-influenced boreal region where plants and pollinators must handle short summers and big swings in weather.
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Interior
Western Allegheny Plateau
This region is often a patchwork of forests, edges, and stream corridors—exactly the kind of “mosaic” landscape where pollinators can thrive when flowers and nesting spots are available.
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Prairie
Western Corn Belt Plains
This ecoregion sits within the Temperate Prairies and is often associated with wide-open landscapes and a long history of grassland ecology.
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Coastal
Western Gulf Coastal Plain
The Western Gulf Coastal Plain is a coastal lowland region influenced by rivers, wetlands, and Gulf weather patterns.
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Forest
Willamette Valley
The Willamette Valley is a productive, people-filled landscape where gardens, parks, farms, and natural areas sit close together.
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Interior
Interior
Wyoming Basin
The Wyoming Basin is a cold-desert ecoregion where native plants are adapted to drought, wind, and temperature extremes.
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Interior
Yukon Flats
Yukon Flats is a boreal interior lowland where water—rivers, wetlands, and seasonal flooding—strongly shapes habitats.
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Interior
Yukon-Stikine Highlands/Boreal Mountains and Plateaus
This region is defined by boreal mountain-and-plateau landscapes where growing conditions can be challenging but rewarding for hardy native plants.
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