Prairie cordgrass
Prairie cordgrass (Spartina pectinata) is the dominant tall grass of wet prairie, pothole edges, and stream margins. Its aggressive rhizomes armor shorelines against erosion, and its dense standing biomass provides critical winter cover in wetland complexes.
Why landowners plant prairie cordgrass
- Tolerates seasonal flooding and saturated soils where big bluestem drowns.
- Rhizome network is one of the best natural bank and shoreline stabilizers.
- Tall, persistent winter structure for pheasants and waterfowl loafing cover.
- Traps sediment effectively in buffers and filter strips.
Site fit
Plant on hydric and wet-mesic ground: pothole margins, drainage swales, wetland buffers, and CP23 restorations. Keep it out of mesic uplands, where it can spread aggressively and displace diversity.
Establishment
Seed quality varies and germination can be low, so PLS documentation matters. Requires cold-moist stratification; dormant seeding is best. Establishment is slow in the first year, then spreads quickly by rhizome.
Management
Very fire-tolerant. Can be hayed after mid-July. Expect it to expand in the wet zones of a planting over the contract term.
CRP practice fit
Standard tall grass in wetland restoration and buffer plantings.
Used in wet filter strips for sediment capture.
Included in wet-prairie CP25 mixes on hydric soils.
Featured mixes with prairie cordgrass
Pairs well with
Swamp milkweed · Blue vervain · Switchgrass (Kanlow) · Sedges
Frequently asked questions
Only in the wet zones. Prairie cordgrass spreads aggressively by rhizome in saturated soils but cannot compete on mesic uplands. Specify it only for hydric and wet-mesic areas of the seeding plan.
Yes, but germination rates are variable, so always order by Pure Live Seed and use dormant seeding for natural cold-moist stratification. Plug plantings are sometimes used on critical shoreline stabilization work.