Species Native to Missouri
Common Name: prairie dropseed
Type: Ornamental grass
Family: Poaceae
Native Range: North America
Zone: 3 to 9
Height: 2.00 to 3.00 feet
Spread: 2.00 to 3.00 feet
Bloom Time: August to October
Bloom Description: Pink and brown-tinted
Sun: Full sun
Water: Dry to medium
Maintenance: Low
Suggested Use: Ground Cover, Naturalize, Rain Garden
Flower: Showy, Fragrant
Leaf: Good Fall
Attracts: Birds
Other: Winter Interest
Tolerate: Deer, Drought, Erosion, Clay Soil, Dry Soil, Shallow-Rocky Soil, Black Walnut, Urban Conditions
Culture
Easily grown in average, dry to medium, well-drained soils in full sun. Tolerates wide range of soils, including heavy clays. Prefers dry, rocky soils. Good drought tolerance. Slow-growing and slow to establish. May be grown from seed but does not freely self-seed in the garden.
Noteworthy Characteristics
Sporobolus heterolepis, called prairie dropseed, is a clump-forming, warm season, perennial grass which typically occurs in prairies, glades, open ground and along railroads in parts of the central and western United States and southern Canada. Fine-textured, hair-like, medium green leaves (to 20” long and 1/16” wide) typically form an arching foliage mound to 15” tall and 18” wide. Foliage turns golden with orange hues in fall, fading to light bronze in winter. Open, branching flower panicles appear on slender stems which rise well above the foliage clump in late summer to 30-36" tall. Flowers have pink and brown coloration but are perhaps most noted for their unique and noticeable (some may say pungent) scent that has variously been described as resembling a combination of coriander, popcorn, honey, sunflower seeds, and melted wax. Tiny rounded mature seeds drop to the ground from their hulls in autumn giving rise to the descriptive common name.
The genus name Sporobolus comes from the Ancient Greek sporos meaning "seed" and ballo meaning "to throw", in reference to how the seeds are dispersed.
Specific epithet means diversely scaled.
Problems
No serious insect or disease problems.
Uses
Ground cover for hot, dry areas. Prairies, meadows, native plant gardens, wild areas or slopes. Also effective in large rock gardens. Accent for foundation plantings or borders.