Southeast US mixed woodlands and savannas
Southeast US mixed woodlands and savannas
This Nearctic ecoregion lies in the southeastern United States, part of One Earth's Southeast US Savannas & Forests subrealm, which spans much of the Atlantic seaboard and Southeast and is "dominated by grasslands but also includes adjoining mixed forests." Its characteristic landscapes are fire-maintained longleaf-pine (conifer) savannas and woodlands across the low-relief North American Coastal Plain, where most of the native vegetation is adapted to frequent fire. The regional climate is warm-temperate, becoming subtropical in its southernmost portions. Notably, the surrounding North American Coastal Plain was recognized in 2016 by the Critical Ecosystem Partnership Fund as the world's 36th global biodiversity hotspot, with high richness among plants, freshwater fish, and amphibians.
RESOLVE 400
Nearctic
11 sq mi
Temperate Grasslands, Savannas & Shrublands
Landscape type
Temperate Grasslands, Savannas & Shrublands
Plant region
Nearctic
Region footprint
11 sq mi
Habitat pressure
Nature Imperiled (Dinerstein NNH 4)
Source & care
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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.
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 204 of 204 climate-fit plants for this region.
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.
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: 13
Host/specialist links: 1
Forage/pollination links: 16
Shelter links: 0
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: 11
Host/specialist links: 1
Forage/pollination links: 14
Shelter links: 0
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: 8
Host/specialist links: 1
Forage/pollination links: 11
Shelter links: 0
Similar planting regions
Browse other regions in the same biome. Their plant lists can suggest species and combinations worth comparing.
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
75 · Southern Coastal Plain
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.
Countries
States and provinces
Educator packet
Region packet
Southeast US mixed woodlands and savannas educator packet
This Nearctic ecoregion lies in the southeastern United States, part of One Earth's Southeast US Savannas & Forests subrealm, which spans much of the Atlantic seaboard and Southeast and is "dominated by grasslands but also includes adjoining mixed forests." Its characteristic landscapes are fire-maintained longleaf-pine (conifer) savannas and woodlands across the low-relief North American Coastal Plain, where most of the native vegetation is adapted to frequent fire. The regional climate is warm-temperate, becoming subtropical in its southernmost portions. Notably, the surrounding North American Coastal Plain was recognized in 2016 by the Critical Ecosystem Partnership Fund as the world's 36th global biodiversity hotspot, with high richness among plants, freshwater fish, and amphibians.
Realm
Nearctic
Dominant biome
Temperate Grasslands, Savannas & Shrublands
Approximate area
11 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.). Southeast US mixed woodlands and savannas (Southeast US mixed woodlands and savannas). Retrieved 2026, August 20, from https://plotwright.com/regions/resolve-400
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











































