Home
Blue grama

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: 27 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...

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Baptisia australis
Blue false indigo
A long-lived native perennial of central and eastern US woodland borders and prairie meadows with deep blue pea-shaped flowers in late spring, blue-green leguminous foliage, attractive black seed pods for winter interest, and a nitrogen-fixing root system (Fabaceae). Larval host for 6 documented butterfly species per NC State (orange sulphur, clouded sulphur, frosted elfin, eastern tailed-blue, hoary edge, wild indigo duskywing) — among the highest Lep-host-count perennials in the eastern flora.
Perennial
Full sun / Part shade
Moderate water
Zones 3a-9b
Climate: broad
Border
Pollinator
Focal point
Structure
Hibiscus moscheutos
Hardy hibiscus
A bold, moisture-loving native perennial of eastern North America that dies back to a woody base each winter and returns to throw up stout 2-6 ft stems topped with enormous 4-8 inch saucer-shaped flowers — white, pink, red, or burgundy, each with a contrasting central eye — from June into September. NC State Extension describes a herbaceous perennial hardy across USDA zones 4a-9b that thrives in wet to constantly moist soils, tolerates heat, humidity, and even brief flooding, and draws hummingbirds, butterflies, and other pollinators. The tropical-looking dinner-plate blooms make it a dramatic focal point for rain gardens, pond edges, and the back of a sunny border.
Perennial
Full sun / Part shade
Consistent moisture
Zones 4a-9b
Climate: broad
Focal point
Border
Structure
Pollinator
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
Structure
Pollinator
Border
Aronia melanocarpa
Black chokeberry
A drought-and-flood-tolerant native shrub of eastern North America with brilliant three-season interest — spring white-pink flowers, glossy black antioxidant-rich late-summer berries, and brilliant wine-red fall foliage — plus an extraordinarily wide cold-hardiness range (USDA 3a-8b). The berries are astringent fresh but the basis of a small but growing commercial industry (juices, wines, jams, supplements) for their exceptionally high anthocyanin content. Spreads by suckers; site where colony formation is welcome.
Shrub
Full sun / Part shade
Moderate water
Zones 3a-8b
Climate: broad
Border
Pollinator
Structure
Edible
Viburnum prunifolium
Blackhaw viburnum
A native eastern North American multi-stemmed deciduous shrub or small tree with white spring flower clusters, edible dark-blue drupes, and red-purple fall foliage. Among the most adaptable native viburnums; tolerates a wide range of soil + light conditions.
Shrub
Full sun / Part shade
Moderate water
Zones 3a-9b
Climate: broad
Structure
Pollinator
Border
Eupatorium perfoliatum
Boneset
A large, hairy, clump-forming North American native perennial of wet meadows, low woods, stream banks, and prairies. Its most distinctive feature is the perfoliate foliage — pairs of wrinkled, opposite, lance-shaped leaves whose bases fuse around the hairy stem, so the stem appears to pass through the leaf. From July to September, flat-topped clusters of small, fluffy white flowers feed a wide range of bees, butterflies, and other pollinators, while all parts of the plant are toxic and bitter.
Perennial
Full sun / Part sun / Part shade
Consistent moisture
Zones 3a-8b
Climate: broad
Structure
Pollinator
Border

Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Blue grama (Bouteloua gracilis). Retrieved 2026, June 24, from https://plotwright.com/plants/bouteloua-gracilis
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
Missouri Botanical Garden PlantFinder
Botanical research database
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
Growth stages
Lifecycle
Regional guidance
Success tips
Designer notes
Wikimedia Commons
Photo · CC BY-SA 2.0
Backs 1 field
Image
Lady Bird Johnson Wildflower Center Native Plant Database
Botanical research database