Purple Three-Awn

Aristida purpurea, Poaceae

Zones

4–9

Layer

Herbaceous

Lifespan

Perennial

Growth

Moderate

Guild Roles

Beneficial Insect Habitat

Full Sun (preferred)

Low

6 – 8

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Purple three-awn grass forms dense stands that exclude wildflowers through root competition and mild allelopathic effects

Purple three-awn forms dense, competitive stands that can exclude wildflowers through intense root competition

Erosion Control

Purple Three-Awn grows in USDA hardiness zones 4 through 9.

Good companions for Purple Three-Awn include Wholeleaf Indian Paintbrush, Woolly Paperflower, Desert Globemallow.

Design guilds with Purple Three-Awn and see companion relationships visually.