Sideoats grass

Sideoats grama is a native warm-season perennial grass named for the oat-like spikelets that hang along one side of its arching flowering stems. Its airy heads add movement and fine texture to prairie plantings, dry meadows, and naturalistic borders. ## Garden use and appearance The USDA NRCS plant guide describes a deep-rooted perennial with zigzag flowering stalks and spikes dangling at intervals along one side of each stalk; it occurs in dry mid-grass prairie and grows in many well-drained soils ([USDA NRCS plant guide](https://plants.sc.egov.usda.gov/DocumentLibrary/plantguide/pdf/pg_bocu.pdf)). The Forest Service review notes that the one-sided spikes flower from July through September and that the species develops roots adapted to dry conditions ([USDA Forest Service species review](https://research.fs.usda.gov/feis/species-reviews/boucur)). ## Growing conditions Grow sideoats grama in full sun or light shade in soil that drains well. It tolerates varied soil textures and moderate drought once established, though seedlings can fail during short dry spells before their roots develop. Use it in a sunny native planting with prairie grasses and flowering perennials, allowing space for the flowering stems to rise above shorter plants. ## Seasonal interest The flower spikes appear in summer, and their one-sided arrangement gives the grass a distinctive silhouette as the seeds mature and dry. The flowering period varies by climate and can extend into early fall. ## Maintenance Cut back old stems in late winter or early spring before new growth begins. Leave some standing stems through winter for structure and wildlife cover if desired. Water new plants during establishment, then reduce irrigation once the grass is rooted in a suitable site.