Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Andropogon gerardii


Big bluestem, Turkeyfoot


Poaceae (Grass Family)



Andropogon gerardii (Big bluestem)
Fannon, Carolyn
Big Bluestem is a warm season, perennial bunchgrass with blue-green stems 4-8 ft. tall. The seedhead is usually branched into three parts and resembles a turkey’s foot. Fall color is maroonish-tan.

Big Bluestem is the star component of the Big Four native grass species that characterize the tallgrass prairies of central North America (the other three are Indiangrass [Sorghastrum nutans], Switchgrass [Panicum virgatum], and Little Bluestem [Schizachyrium scoparium]). It tends to be taller than the other species and was at one time very abundant. It can still get quite aggressive when its established in a favorable, undisturbed location, but overgrazing and land destruction have reduced it to mere patches of its former range. Part of the problem is that cattle love it so much - some ranchers refer to it as ice cream for cows - and it cannot take concentrated grazing; the seasonal grazing of migratory bison is what its evolved to cope with.

Image Gallery:

52 photo(s) available

Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Parallel
Inflorescence: Spikelet
Fruit Type: Caryopsis
Size Notes: 4-8 feet tall.
Leaf: Green or blue-green. Russet in winter.
Autumn Foliage: yes
Flower:
Fruit:
Size Class: 3-6 ft. , 6-12 ft.

Bloom Information

Bloom Color: Red , Blue , Brown
Bloom Time: Aug , Sep , Oct , Nov

Distribution

USA: AL , AZ , AR , CO , CT , DE , FL , GA , IL , IN , IA , KS , KY , LA , ME , MD , MA , MI , MN , MS , MO , MT , NE , NH , NJ , NM , NY , NC , ND , OH , OK , PA , RI , SC , SD , TN , TX , UT , VT , VA , WV , WI , WY , DC
Canada: MB , ON , QC , SK
Native Distribution: Que. & ME to Sask. & e. MT, southeast to FL, west to AZ and south to central Mex.
Native Habitat: Usually in low meadows and prairies, rare in extreme west. Most abundant in the central plains but also a prairie component in moist grasslands all the way to the east coast.

Growing Conditions

Water Use: Low , Medium
Light Requirement: Sun , Part Shade
Soil Moisture: Moist
CaCO3 Tolerance: High
Drought Tolerance: High
Soil Description: Acid or calcareous sands, loams, and clays.
Conditions Comments: Big Bluestem needs more moisture to look its best than does Little Bluestem (Schizachyrium scoparium), but it is quite drought-tolerant when in deep prairie soils because of its deep roots. If used in a garden, too much water, shade, or fertilizer can cause it to get top-heavy and fall over. It is moderately tolerant of acidity and salinity and can withstand periodic flooding and high water tables.

Benefit

Use Ornamental: An essential grass for grassland restoration and prairie gardens in the central plains. Large stature, blue-green foliage, and interesting flowering heads.
Use Wildlife: Provides cover for at least 24 species of songbirds and nesting sites or seeds for Grasshopper Sparrow, Henslow’s Sparrow, and other sparrows, as well as nesting sites for Sedge Wrens and Western Meadowlarks.
Conspicuous Flowers: yes
Interesting Foliage: yes
Attracts: Birds , Butterflies
Larval Host: Delaware Skipper, Dusted Skipper
Deer Resistant: High

Butterflies and Moths of North America (BAMONA)

Andropogon gerardii is a larval host and/or nectar source for:
Delaware Skipper
(Anatrytone logan)

Larval Host
Learn more at BAMONA
Dusted Skipper
(Atrytonopsis hianna)

Larval Host
Learn more at BAMONA

Last Update: 2013-10-24