Junegrass (Koeleria macrantha) | Prairie Restorations

Junegrass

Koeleria macrantha

Junegrass is a cool-season perennial bunchgrass reaching 10 to 20 inches tall. It thrives in dry prairies, savannas, dunes, open woodlands, and sandy or rocky soils. This grass is an important species for prairie restorations and erosion control due to its fibrous root system. Junegrass is one of the first grasses of the season to bloom, showing its panicles in June, hence the name. It provides forage for wildlife and adds texture to native plantings in gardens and restoration projects.

Characteristics

Product Form	Plant, Seed
Type	Graminoid
Sun	Full Sun, Partial Sun
Soil	Loam, Sand/Gravel, Calcareous
Moisture	Dry, Mesic
Average Max Height (inches)	24
Suggested Plant Spacing (inches)	12
Dominance	Low

Range Maps

Sowing Information

Sow seed onto a firm, weed-free seedbed. Hand-broadcast seed making two perpendicular passes for even coverage. If planting a mix, broadcast the grass component first and lightly rake/drag it into the top 1/8–1/4" of soil. Next, broadcast wildflower/forb seed and press it into the soil surface (with a roller/cultipacker or the back of a rake) to ensure good seed-to-soil contact. After seeding, apply a very light layer of clean, seed-free straw (or other weed-free, site-appropriate mulch) to reduce erosion and retain moisture without smothering seedlings. A good rainfall or thorough watering will help settle seed and mulch and improve germination.

Planting Information

Dig a hole in your planting site slightly larger than the plant’s root system. When placing the plant into the hole, ensure that the soil line remains consistent with its original level in the pot. Fill in around the roots with the excavated soil, gently firming it to eliminate air pockets. Water the plant thoroughly the same day to promote successful establishment.