Prairie Cord Grass

Spartina pectinata

Also called Slough Grass

  • Main stems (culms) are round, up to 225 cm long
  • Green leaves, alternate, up to 60 cm long, emerge from the lower half of the stems
  • Arching thick blades with prominent midribs have sharp edges
  • Ends of stems feature racemes of 10-30 alternate floral spikes
  • Fall colour is clear yellow, turning to tan for the winter
  • Bloom Time: July to August
  • Flower Height: 225 cm
  • Foliage Height: 150 cm
  • Grass Type: Warm Season



175-225 cm

100-120 cm

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Growing and Maintenance Tips:

Spartina grows best in moist, fertile soil in full sun to partial shade. It is an aggressive grass, spreading by rhizome as well as by seed, not suited to small gardens. It will tolerate less fertile, rocky, dry soils where it will be less aggressive.

Additional Notes about Prairie Cord Grass:

Native to Ontario

 Warm Season Grasses: These grasses are much slower starting in the spring. They do not push new growth until temperatures warm in early to midsummer. They flower later in the summer or fall with most blooms remaining into the winter. Most warm season grasses tolerate heat, humidity and drought; some even thrive in these conditions.