How to Grow Bluestem Grass
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Bluestem Grass
Andropogon gerardii
grassBluestem, also called Big Bluestem, is a dominant native warm-season grass of North American prairies known for its distinctive three-pronged seedhead resembling a turkey foot. It grows tall (4-8 feet) with blue-purple coloring in the stems and foliage, especially in fall. This perennial is highly valued for prairie restoration, wildlife habitat, erosion control, and ornamental landscaping.
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Example Bluestem Grass timeline · Pittsburgh, PA (Zone 6b)
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Plant Bluestem Grass
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Bluestem Grass
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9, performs best in zones 4-8
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Germination & Seedling
3-4 weeksSmall shoots emerge in spring with narrow leaves. Seedlings are delicate and slow-growing initially.
Keep soil consistently moist but not waterlogged during first 6-8 weeks. Remove competing weeds carefully. Cold stratification (30-60 days) improves germination rates.
Establishment Year (Vegetative)
6-12 monthsPlant develops root system and grows slowly, typically reaching 1-2 feet by first year. Foliage is fine and green.
Water regularly during drought in first year. Mow or burn competing vegetation. Do not harvest or graze. Minimal fertilization needed.
Second-Year Growth
12 monthsPlant becomes established with deeper root system. Height increases to 3-5 feet. Stems begin to show blue-purple coloring.
Reduce watering as drought tolerance increases. Can conduct light management burning in late spring. Still avoid heavy harvest.
Flowering & Seed Development
2-3 months (August-October)Distinctive three-pronged 'turkey foot' seedheads appear in late August through October. Stems turn blue-purple, then reddish-burgundy in fall.
Allow plants to mature fully for seed dispersal and wildlife food. Use management burns in early spring (March-April) every 2-3 years for vigor and weed control.
Dormancy & Winter
4-5 months (November-March)Above-ground growth dies back to brown/tan stems. Deep root system (up to 12 feet) remains dormant underground.
Stems can be left standing for wildlife habitat and erosion control, or mowed/burned for management. Spring burn (before green-up) stimulates new growth.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Generally not problematic in established stands. Manage through prescribed burns and diverse plantings. Predatory birds and parasitic flies provide natural control.
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Rarely serious in native prairie. Maintain plant vigor through proper management burning and diversity.
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Not typically a major issue. Monitor in seed production settings. Use insecticidal soap if needed; encourage beneficial insects.
Uses
Wildlife Habitat & Food
WildlifeBluestem provides critical habitat for native prairie wildlife including insects, birds, and small mammals. Seeds and tender shoots feed songbirds, game birds, and grazing mammals; the dense structure offers nesting and shelter. [source]
Erosion Control & Soil Stabilization
HouseholdDeep root systems (up to 12 feet) stabilize soil, prevent erosion, improve water infiltration, and suppress weeds. Widely used for roadside restoration, stream buffers, and degraded land recovery. [source]
Ornamental & Landscape Design
CraftStriking fall colors (blue-purple stems, burgundy foliage) and distinctive seedheads make bluestem a premier ornamental grass for native plant gardens, prairies, and contemporary landscapes. Provides seasonal interest year-round. [source]
Forage & Livestock Grazing
CulinaryHistorically grazed by bison and cattle on American prairies. Provides nutritious winter forage when properly managed; should only be grazed after dormancy to avoid root damage. [source]
Prairie Restoration & Fire Management
HouseholdCore component of tallgrass prairie restoration. Responds positively to prescribed burning for management—periodic spring burns rejuvenate stands, suppress woody encroachment, and reduce thatch. [source]
Harvest Tips
Bluestem is not harvested like a crop, but managed for various purposes: (1) Seed collection: Harvest seedheads in fall (September-November) when turkey-foot structure is fully formed and seeds are tan. Hand-strip or cut stems and thresh. (2) Forage: In native rangeland, allow grazing after plants are fully dormant (late fall/winter) and roots are deep; avoid spring/early summer grazing. (3) Ornamental: Enjoy stand in landscape; cut back in late winter (February-March) before green-up or conduct spring burn. Allow seedheads to persist through winter for wildlife.
Fun Facts
- 🌱 The distinctive three-pronged seedhead resembles a wild turkey's foot, giving the plant its common name 'Turkey Foot' grass.
- 🌱 Bluestem root systems can extend 12+ feet deep, making it one of the deepest-rooted prairie plants and rivaling some woody shrubs in total below-ground biomass.
- 🌱 Native Americans and early settlers used bluestem to thatch roofs and for livestock bedding. The dense stands once covered millions of acres from Canada to Texas before agricultural conversion.
Gardening Terms
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