Andropogon gerardii 'Blackhawks' (PP27949)
Overview
Uses: Native ornamental grass, prairie gardens, mass plantings, borders, naturalized landscapes
Benefits: North American native with striking seasonal color shifts from green to deep purple and near-black. Provides habitat and structure for birds and pollinators.
USDA Hardiness Zones: 3–9
Sun: Full Sun
Life Cycle: Hardy Perennial Grass
Growth Habit: Upright, Clumping — vertical prairie form
Bloom Color: Reddish-Bronze
Foliage Color: Green maturing to Purple and Near-Black
Mature Height: 4–5 feet
Mature Width: 1–2 feet
Bloom Season: Late Summer
Growth Rate: Moderate
Summary
A bold native prairie grass with dramatic dark foliage and strong vertical presence.
Andropogon gerardii 'Blackhawks' is a selected form of Big Bluestem, one of the foundational grasses of the historic American tallgrass prairie. Emerging green in spring, the foliage deepens through summer into rich purples before maturing to near-black tones in fall.
Its upright, clumping habit makes it ideal for adding height and movement to borders and native plantings. In late summer, reddish-bronze flower spikes rise above the foliage, adding seasonal texture and providing habitat value for wildlife.
This variety pairs well with flowering perennials and performs beautifully in prairie-inspired landscapes or structured modern beds.
Care
Big Bluestem 'Blackhawks' Care
Plant in full sun for best color development and strongest upright growth.
Prefers well-drained soil and tolerates drought once established. Water regularly during the first growing season to establish a deep root system.
Apply a balanced slow release fertilizer in spring if needed.
Cut back to approximately 2–4 inches above the ground in late winter or early spring before new growth begins.
Size
What Size is Big Bluestem 'Blackhawks' for Sale Online?
Plants are greenhouse-grown and shipped in a grow pot, healthy and actively growing at the time of shipment. For specific sizing questions, please contact us.
How Large Does Big Bluestem 'Blackhawks' Grow?
At maturity, plants typically reach 4–5 feet tall and 1–2 feet wide, forming a narrow, upright clump.
Additional Information
Is Big Bluestem native to North America?
Yes. Andropogon gerardii is native to North America and was a dominant species in the historic tallgrass prairie ecosystem.
Can this grass be used in native or prairie gardens?
Absolutely. Its upright form and wildlife value make it well suited for prairie-style plantings and habitat-focused landscapes.
Where can I find more native grasses?
Browse our Native Plants collection and explore additional texture-rich selections in our Ornamental Grasses collection.
