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Pasture Seed
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Sideoats Grama Grass Seed
Bouteloua curtipendula | SKU: PG-BOCU
What is Sideoats Grama?
Sideoats Grama (Bouteloua curtipendula) is the official state grass of Texas and one of the most geographically widespread native grasses in North America. Its range spans from Saskatchewan and Manitoba in Canada south through the Great Plains, into Mexico, and east to the Atlantic states — a distribution that reflects its remarkable adaptability to diverse climates, soils, and elevations. The genus name Bouteloua honors the Spanish botanist Claudio Boutelou; curtipendula means "short pendulous," referring to the characteristic seed heads.
The common name sideoats refers to the arrangement of small oat-like spikelets that hang in a single row down one side of the seed stem — a distinctive feature visible from a distance in seed-bearing stands. Historically, Sideoats Grama was a primary component of the mixed-grass prairie and shortgrass prairie transition zones, occupying the upland sites and drier slopes where the tallgrass species (Big Bluestem, Indiangrass) were replaced by shorter, more drought-tolerant grasses. Bison grazed it extensively on the southern and central Plains.
Today it is specified in conservation programs from North Dakota to South Texas, in Texas Wildscape rebate programs, and in commercial xeriscape projects across the Sunbelt. USDA hardiness zones 3 through 9 cover its adapted range, making it one of the most broadly adapted warm-season native grasses available.
Specifications
Seeding Specs
Water Needs
Low
Soil Preference
Rocky, shallow, sandy, or alkaline soils; extremely adaptable; not suited to saturated or waterlogged ground
Soil pH
pH 5.5-8.0
Planting Depth
1/4 inch
Establishment Specs
Height
1.5-3 ft
Color
Blue-green summer; tan/bronze fall through winter; distinctive oat-like seed heads
Uses
Mixed-grass prairie, xeriscape, CRP/CP-25, erosion control, roadside naturalization, Texas rebate programs
Native/Introduced
Native from Saskatchewan, Canada to Mexico across central North America
Why Choose This Seed?
Fastest Establishing Native Prairie Grass
Sideoats Grama germinates and establishes noticeably faster than Big Bluestem, Indiangrass, or Little Bluestem. Under good conditions, seedlings are visible in the establishment year — something producers familiar with the slow year-1 performance of the tallgrass species will immediately appreciate. Full stand production is typically achieved by the end of year 2 rather than year 3. This faster establishment makes Sideoats Grama particularly valuable on CRP or conservation projects where an establishment-year cover payment or a faster compliance timeline matters. It also provides more confident establishment feedback for first-time native grass planters who may not be familiar with the patience required by other species.
Thrives on Rocky and Alkaline Soils
Sideoats Grama naturally colonizes the rocky, calcareous, alkaline, and shallow soils of the Edwards Plateau, the Flint Hills, the Sandhills, and similar terrain across the Great Plains — sites where Big Bluestem and Indiangrass cannot maintain productive stands. It tolerates soil pH up to 8.0, making it one of the few warm-season native grasses that performs on highly alkaline or calcium carbonate-laden soils. For producers with caliche soils, limestone outcrops, or other high-pH ground that has resisted other native grass establishment attempts, Sideoats Grama is often the most reliable first-choice species.
Texas Wildscape and Xeriscape Proven
Sideoats Grama is the foundational species in Texas Wildscape rebate programs, state grass restoration kits, and commercial xeriscape projects across Texas, Oklahoma, and New Mexico. Its compact 1.5 to 3 foot height makes it manageable in landscape settings, and its distinctive sideoats seed heads provide season-long ornamental interest. Unlike taller native grasses that require acres of space to look natural, Sideoats Grama scales well to suburban lots, commercial landscapes, and smaller conservation plantings. It withstands Texas summers on minimal water once established — no supplemental irrigation required after the first growing season in most of its southern range.
CRP and Conservation Program Approved
Sideoats Grama qualifies for CRP practices CP-25 (Rare and Declining Habitat), CP-38 (State Acres for Wildlife Enhancement), and multiple EQIP upland wildlife and erosion control practices. Texas NRCS field offices consistently specify it as a primary species in warm-season native grass plantings for the Rolling Plains, Cross Timbers, and Edwards Plateau resource areas. It is also a common component of USDA-funded roadside and reclamation plantings in the south-central Plains. Its broad soil adaptability and reliable establishment make it one of the lowest-risk native grass species for CRP compliance plantings.
Honest About Limitations
Sideoats Grama is shorter and less productive by tonnage than Big Bluestem or Indiangrass on deep, fertile soils — on those sites, the tallgrass species will consistently outperform it. It is not suited to waterlogged or saturated soils. On highly productive ground, Sideoats Grama may be outcompeted by taller introduced warm-season grasses and even the taller native species. It still requires 2 seasons to reach full production despite faster-than-average establishment. For high-volume native hay or forage production on deep soils, Big Bluestem and Indiangrass are the better investment. Sideoats Grama's advantages are most pronounced on the marginal, rocky, and alkaline sites where other species struggle.
How to Plant Sideoats Grama
Site Prep
Kill existing vegetation with herbicide burndown 2 to 4 weeks before seeding. Sideoats Grama is tolerant of a wide range of soil conditions, but it cannot compete with established cool-season grasses in year 1. A clean seedbed is essential. Till shallowly to create a firm seedbed, or use a no-till native grass drill directly into chemically killed sod. Sideoats Grama tolerates high-pH and rocky soils — a soil test is still useful to confirm there are no extreme deficiencies, but it does not need soil amendment or nitrogen fertilizer at planting. Target soil pH 5.5 to 8.0.
Seeding
Drill at 5 to 8 lbs PLS/acre at 1/4 inch depth — do not exceed 1/4 inch on this small-seeded species. Broadcast at 8 to 12 lbs PLS/acre and cultipack before and after to ensure seed-soil contact. Sideoats Grama seed flows well through most native grass drills without special handling. When including it in diverse native mixtures, add its PLS rate proportionally to the blend. Dormant seeding in fall is preferred in northern states. Spring seedings in the southern range (Texas, Oklahoma, New Mexico) work well when soil temperatures are consistently above 60°F.
First-Year Care
Sideoats Grama is the best-behaved native grass in year 1 — you will likely see visible seedlings within weeks of a successful spring seeding. Despite this faster germination, the establishment rules remain the same: no grazing in year 1, mow weeds to 4 to 6 inches if they overtop seedlings, no nitrogen fertilizer. Weed pressure is still the primary establishment threat. In Texas and the southern Plains, warm-season annual weeds (sandbur, crabgrass, pigweed) can be aggressive in summer — monitor closely and mow before weeds set seed if herbicide use is not desired.
Long-Term Management
Established Sideoats Grama is low-maintenance by design. In xeriscape and landscape settings, cut back to 4 to 6 inches in late winter before new growth emerges — once per year is sufficient. For pasture and conservation stand management, prescribed burning every 2 to 4 years removes thatch and stimulates growth. Early spring burning produces the best results. Where burning is not practical, aggressive spring mowing before green-up achieves similar benefits. For grazing, implement rotational management — Sideoats Grama is more sensitive to overgrazing than switchgrass and can be significantly degraded by continuous set-stocking at high stocking rates.
Helpful Resources
Pasture Seed Planting Guide
Questions & Answers
Why is Sideoats Grama the Texas state grass?
The Texas legislature designated Sideoats Grama as the state grass in 1971, recognizing its historic dominance across the Texas landscape. Before European settlement, Sideoats Grama covered hundreds of millions of acres of Texas rangeland from the Rolling Plains through the Edwards Plateau and Trans-Pecos regions. It provided the primary forage base for vast bison herds and, later, the longhorn cattle drives that shaped Texas's economic history. Its widespread natural presence, reliability on the thin and rocky soils common across much of Texas, and distinctive appearance made it the natural choice. Today it remains one of the most important rangeland grasses in Texas for cattle production, wildlife habitat, and conservation programs.
How does Sideoats Grama compare to Buffalo Grass?
Both species are native shortgrass prairie components and both are highly drought-tolerant, but they have different growth habits and best uses. Buffalo Grass is a stoloniferous sod-former that spreads laterally to form a dense mat — ideal for lawns and low-growing turf alternatives. Sideoats Grama grows in upright bunches (the northern form spreading slowly by short rhizomes) with distinctive pendulous seed heads — better for pasture, erosion control, conservation plantings, and ornamental use. Buffalo Grass tops out at 4 to 8 inches in mowing height; Sideoats Grama reaches 1.5 to 3 feet and provides more vertical structure. Many Texas native lawn and prairie plantings use both species together — Buffalo Grass as the matrix sod with Sideoats Grama as the accent bunchgrass.
Is Sideoats Grama suitable for a home xeriscape planting?
Yes — Sideoats Grama is one of the best native grasses for xeriscape residential and commercial landscape use, particularly in Texas, Oklahoma, New Mexico, and the south-central Plains. Its compact 1.5 to 3 foot height makes it manageable in landscape settings. The distinctive sideoats seed heads provide ornamental interest from July through winter. Once established, it requires no supplemental irrigation in most of its southern range and no fertilizer. It tolerates the alkaline caliche soils common under many Texas lawns without amendment. For a Texas xeriscape conversion, Sideoats Grama is typically paired with Texas Sage, Blackfoot Daisy, and other native perennials to create low-water landscapes that still provide year-round color and wildlife value.
Does Sideoats Grama spread aggressively?
Not aggressively. The northern form of Sideoats Grama (var. curtipendula) spreads slowly by short rhizomes, so an established plant gradually widens its crown and can knit into a loose sod over years — but it is a slow, manageable spreader, not a runner that races across a bed the way some turf or introduced grasses do. (The southern form, var. caespitosa, is a tighter bunchgrass.) Self-seeding from mature plants also helps fill bare spots in an established planting. In landscape settings you can plant it as a specimen or in defined beds without worrying that it will overrun adjacent lawn or garden areas. Across its native range in North America, it is a desirable native component of grassland communities, not a weed.
What is PLS and how does it apply to Sideoats Grama?
PLS stands for Pure Live Seed — the percentage of seed in a lot that is both pure (not inert matter, weed seeds, or other crop) and alive (viable germination). Native grass seed, including Sideoats Grama, is commonly sold as bulk weight that includes inert material and seed with variable germination percentages. Buying on bulk weight without knowing PLS means you may be dramatically underseeding your stand. Our Sideoats Grama is sold and labeled on a PLS basis — you know the exact purity and germination percentage so you can calculate the correct amount to purchase and plant. The seeding rates listed on this page are PLS rates. Always convert to bulk weight based on your specific lot's PLS percentage before loading your drill or spreader.
Can Sideoats Grama grow in the northern Great Plains?
Yes. Sideoats Grama is native as far north as Saskatchewan and Manitoba, Canada, and is adapted to USDA zones 3 through 9. It is cold-hardy and performs well in North Dakota, South Dakota, Nebraska, and Kansas, though it is more commonly specified in those states as a component of diverse native grass mixes rather than as a primary monoculture species. In the northern Great Plains, Big Bluestem and Little Bluestem are typically the dominant species in restoration mixes, with Sideoats Grama added as a secondary species for site diversity. In the southern Plains and Texas, its role is often reversed — Sideoats Grama becomes the primary species on upland and rocky sites, with the tallgrass species filling the moister lowland positions.
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