June Grass

June Grass (Koeleria macrantha syn. Koeleria pyramidata)

June Grass is a cool-season native bunchgrass found throughout much of North America, where it thrives in prairies, glades, rocky slopes, and open woodlands. Named for its early summer flowering period, this fine-textured grass provides valuable habitat, erosion control, and structural diversity in native plant communities. Its compact size and graceful seed heads make it an excellent choice for pollinator meadows, prairie restorations, and low-maintenance native landscapes.

Key Characteristics

Early-season seed production for wildlife
June Grass is one of the earliest native prairie grasses to flower and set seed. Its seed heads provide forage for small birds and contribute to the seasonal diversity of native grassland ecosystems. The early growth cycle also helps fill an important ecological niche before many warm-season grasses begin active growth.

Host habitat for beneficial insects
As a native bunchgrass, June Grass provides shelter, overwintering habitat, and nesting materials for numerous beneficial insects. The dense clumps create protected spaces for native bees, predatory beetles, and other insects that contribute to healthy ecosystem function.

Excellent companion grass for native wildflowers
Unlike taller prairie grasses that can dominate smaller plantings, June Grass remains compact and refined. Its narrow blue-green foliage complements native wildflowers such as Coreopsis, Prairie Clover, Penstemon, and Butterfly Milkweed, helping create diverse meadow plantings without overwhelming neighboring species.

Drought-tolerant grass for challenging sites
Once established, June Grass thrives in dry, rocky, and nutrient-poor soils where many ornamental grasses struggle. Its fibrous root system helps stabilize soil, making it useful for erosion control, slopes, prairie restorations, and low-input landscape designs.

Product Details

• Native range: Most of North America
• Plant life cycle: Perennial
• Sun requirements: Full sun
• Soil requirements: Dry to medium-dry
• Mature height: 1–2 feet
• Bloom time: May – July
• Bloom color: Green to tan seed heads
• USDA Hardiness zones: 3–9

June Grass performs best in full sun and well-drained soils. It is particularly effective when planted in drifts with native wildflowers or used as a matrix species in prairie-inspired landscapes. Its early growth, fine texture, and adaptability make it an important component of diverse native meadow and restoration plantings.