Dry Chaco
Dry Chaco
The Dry Chaco is a vast semi-arid lowland in the heart of South America, spanning northwestern Argentina, western Paraguay, and southeastern Bolivia (extending into a small part of Brazil), east of the Andes. Its landscape is a mosaic of savanna and thorn forest, signatured by quebracho hardwoods-red quebracho (Schinopsis lorentzii) and white quebracho (Aspidosperma quebracho-blanco)-alongside the slow-growing palo santo (Bulnesia sarmientoi), prickly-pear and giant columnar cacti, and an understory of bromeliads. Lying in the rain shadow of the central Andes, it endures intense sun, a long dry season, and some of the highest temperatures on the continent, with rainfall roughly around 865 mm a year. The ecoregion is a stronghold of arid-land endemism-home to the once-thought-extinct Chacoan peccary and numerous armadillo species-but it is under heavy pressure, having lost an estimated 20.2% of its forest cover between 2000 and 2019 to ranching and cropland. For gardeners in hot, dry climates, the native algarrobo (Prosopis alba) is a prized shade tree well suited to such conditions.
RESOLVE 569
Neotropic
305,152 sq mi
Tropical & Subtropical Grasslands, Savannas & Shrublands
Landscape type
Tropical & Subtropical Grasslands, Savannas & Shrublands
Plant region
Neotropic
Region footprint
305,152 sq mi
Habitat pressure
Nature Could Reach Half Protected (Dinerstein NNH 2)
Source & care
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Use this as the broad planting pattern for the region: Warm grasslands and savannas where grasses dominate and trees are scattered, maintained by seasonal rainfall, grazing, and fire. They support large herbivore communities and respond sharply to wet–dry cycles. 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 553 of 553 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: 17
Host/specialist links: 4
Forage/pollination links: 20
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: 12
Host/specialist links: 2
Forage/pollination links: 15
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: 21
Host/specialist links: 4
Forage/pollination links: 26
Shelter links: 3
Similar planting regions
Browse other regions in the same biome. Their plant lists can suggest species and combinations worth comparing.
Where this ecoregion reaches
Educator packet
Region packet
Dry Chaco educator packet
The Dry Chaco is a vast semi-arid lowland in the heart of South America, spanning northwestern Argentina, western Paraguay, and southeastern Bolivia (extending into a small part of Brazil), east of the Andes. Its landscape is a mosaic of savanna and thorn forest, signatured by quebracho hardwoods-red quebracho (Schinopsis lorentzii) and white quebracho (Aspidosperma quebracho-blanco)-alongside the slow-growing palo santo (Bulnesia sarmientoi), prickly-pear and giant columnar cacti, and an understory of bromeliads. Lying in the rain shadow of the central Andes, it endures intense sun, a long dry season, and some of the highest temperatures on the continent, with rainfall roughly around 865 mm a year. The ecoregion is a stronghold of arid-land endemism-home to the once-thought-extinct Chacoan peccary and numerous armadillo species-but it is under heavy pressure, having lost an estimated 20.2% of its forest cover between 2000 and 2019 to ranching and cropland. For gardeners in hot, dry climates, the native algarrobo (Prosopis alba) is a prized shade tree well suited to such conditions.
Realm
Neotropic
Dominant biome
Tropical & Subtropical Grasslands, Savannas & Shrublands
Approximate area
305,152 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.). Dry Chaco (Dry Chaco). Retrieved 2026, October 9, from https://plotwright.com/regions/resolve-569
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















































