Blue grama
Bouteloua gracilis
A tough, fine-textured warm-season bunchgrass of the North American shortgrass prairie, named for its distinctive seed spikes that hang from one side of the arching stem like a comb or an eyebrow. Bluish-gray summer foliage forms dense low clumps that turn golden brown - sometimes orange and red - in autumn, while reddish-purple flowers rise above on slender culms in summer. Exceptionally drought- and heat-tolerant once established, it is a larval host for several prairie skipper butterflies and a seed source for granivorous birds.
Native: 22 US states + 4 CA provinces
Climate fit: broad (93/100)
Structure
Pollinator
Border
Light
Full sun
Water
Low water
Mature size
9-24" tall · 12" apart
Hardy in zones
3a-10b
brutally cold to mild winters
AHS heat range
4-12
Plant range authored in AHS heat-zone terms.
Native in Illinois
Yes
Related products
Sponsored
Shop gardening supplies for Blue grama on Amazon ->
Plotwright may earn a commission from purchases made through this link, at no extra cost to you.
A documented larval host for the Skipper butterflies - specialist wildlife that depend on plants like this to reproduce.
Cold hardiness
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 45 ecoregions - 42 climate-resilient through 2070 · 3 newly possible by 2070. Best matches first.
Appalachian mixed mesophytic forests
›
Appalachian-Blue Ridge forests
›
Arizona Mountains forests
›
Atlantic coastal pine barrens
›
Blue Mountains forests
›
California coastal sage and chaparral
›
Central Pacific Northwest coastal forests
›
Central Tallgrass prairie
›
Central-Southern Cascades Forests
›
Chihuahuan desert
›
Similar plants
Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Educator packet
Plant packet
Blue grama educator packet
A tough, fine-textured warm-season bunchgrass of the North American shortgrass prairie, named for its distinctive seed spikes that hang from one side of the arching stem like a comb or an eyebrow. Bluish-gray summer foliage forms dense low clumps that turn golden brown - sometimes orange and red - in autumn, while reddish-purple flowers rise above on slender culms in summer. Exceptionally drought- and heat-tolerant once established, it is a larval host for several prairie skipper butterflies and a seed source for granivorous birds.
Scientific name
Bouteloua gracilis
Plant type
grass
Hardiness
3a-10b
Light
full-sun
Moisture
low
Spacing
12 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Blue grama (Bouteloua gracilis). Retrieved 2026, August 20, from https://plotwright.com/plants/bouteloua-gracilis
Sources used for this record
This record is compiled from the sources below.
Lady Bird Johnson Wildflower Center Native Plant Database
Botanical research database





