How to Grow Buchanan's Grass
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Buchanan's Grass
Bouteloua curtipendula var. buchananensis
grassBuchanan's grass is a native North American bunch grass characterized by distinctive spike-like flower clusters that hang from a central stem. It is a warm-season perennial grass highly valued for rangeland restoration, erosion control, and wildlife habitat. This drought-tolerant species is also known as sideoats grama and is an important component of prairie and grassland ecosystems.
When should you plant Buchanan's Grass in your zone?
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Example Buchanan's Grass timeline · Pittsburgh, PA (Zone 6b)
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Plant Buchanan's 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 Buchanan's Grass
Around Aug 15≈ 120 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-9, particularly well-suited to Great Plains and transitional prairie regions
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Get my Buchanan's Grass timeline →Growth Stages
Germination & Seedling
2-4 weeksTiny grass shoots emerge with thin leaf blades; very slow initial growth
Keep soil consistently moist but not waterlogged; protect from heavy traffic; cold stratification improves germination rates
Establishment & Vegetative Growth
3-6 monthsGradually develops deeper root system and more leaf blades; slow growth in first year is normal
Continue regular watering during first growing season; avoid fertilizer; suppress competing weeds
Root Development
6-12 monthsDeep fibrous root system develops, extending 3-5 feet into soil; plant becomes more drought-tolerant
Minimal water needed except in severe drought; no fertilizer necessary
Flowering & Inflorescence
6-8 weeksCharacteristic drooping spike-like seed heads (spikelets) appear on a central axis, hanging downward; flowers from midsummer to early fall
Allow plants to flower for wildlife and seed production; do not cut during flowering if seed dispersal desired
Seed Maturity & Dormancy
4-8 weeks through winterSeeds mature and dispersal occurs; foliage begins to cure and turn golden-brown; plant goes dormant in winter
Can harvest seed heads if needed; leave standing for wildlife; dormancy is normal and beneficial
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Generally not a major issue in native plantings; monitor for defoliation; allow natural predators to manage populations
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Rarely problematic in diverse prairie plantings; natural predators keep populations in check
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Occurs occasionally in humid conditions; improve air circulation; no chemical control typically needed
Uses
Habitat & Wildlife Forage
WildlifeProvides excellent nesting cover and seed food for grassland birds, small mammals, and insects. The seed heads are particularly valuable for wildlife in late fall and winter. [source]
Rangeland & Pasture Restoration
HouseholdWidely used in grassland restoration projects, conservation programs, and prairie reconstruction to restore native ecosystems and improve rangeland productivity. [source]
Erosion Control & Soil Stabilization
HouseholdExtensive root system prevents soil erosion on slopes and disturbed areas; improves soil structure and water infiltration over time. [source]
Ornamental & Landscape Design
CraftThe distinctive drooping seed heads and fine texture make it attractive in native plantings, rain gardens, and xeriscape designs. Golden fall color provides seasonal interest. [source]
Carbon Sequestration & Climate Benefits
HouseholdDeep root systems sequester carbon in soil; native prairie species improve soil health and support carbon-neutral ecosystems compared to tilled agricultural land. [source]
Harvest Tips
Allow plants to cure on the stem in fall; seed can be harvested by stripping seed heads by hand or mechanical collection once fully mature (late September through October in most regions); for ornamental use, cut seed heads before heavy frost if desired; leave some standing for wildlife winter food and habitat
Fun Facts
- 🌱 The common name 'sideoats grama' refers to the distinctive one-sided arrangement of the drooping spike-like seed clusters, which historically helped pioneers and cattle identify good grazing land.
- 🌱 Buchanan's grass is extremely drought-tolerant and can survive on as little as 10-15 inches of annual precipitation, making it ideal for arid and semi-arid regions.
- 🌱 This grass was a dominant species in the native tallgrass and mixed-grass prairies of North America before European settlement, and restoration of these ecosystems depends heavily on replanting species like this.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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