Plant Detail

Koeleria macrantha (Prairie Junegrass)

Prairie Junegrass, Junegrass, Prairie Koeler's Grass, Koeleria albescens, Koeleria cristata, Koeleria cristata var. longifolia, Koeleria cristata var. pinetorum, Koeleria gracilis, Koeleria nitida, Koeleria pyramidata, Koeleria yukonensis

Native to prairies and open woods, Koeleria macrantha (Prairie Junegrass) is a cool season ornamental grass forming a compact, upright clump of gray-green basal leaves. Dense, silvery green, spear-shaped seedheads appear in spring atop stems rising well above the foliage. Most striking when backlit, they ripen tan with seeds. In cool summer climates, Prairie Junegrass usually remains attractive until fall. In hot and humid areas, it tends to go dormant by late summer. Koeleria macrantha requires sharply drained soil and is best grown in rock gardens, raised beds. Excellent for prairie restoration.

  • Grows up to 24 in. tall (60 cm) and 12-18 in. wide (30-45 cm). Freely self-seeds where happy.
  • Performs best in full sun, in rocky or grittydry to mediumwell-drained soilsDrought and dry soil tolerant.
  • No serious pest or disease issues.
  • Propagate by seed sown unstratified in fall or stratified in spring. Division in early spring.
  • Native to Asia, Europe, North America

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Requirement
Hardiness 3,4,5,6,7,8,9
Heat Zones 3,4,5,6,7
Climate Zones 3, 4, 5, 6, 7
Plant Type Ornamental Grasses
Plant Family Poaceae or Gramineae
Exposure Full Sun
Season of Interest Spring, Summer, Mid Spring, Late Spring, Early Summer, Mid Summer
Height 1' - 2'
Spread 1' - 2'
Water Needs Low, Average
Maintenance Low
Soil Type Loam, Sand
Characteristics Showy
Garden Styles Gravel and Rock Garden, Prairie and Meadow
Planting Place