Erianthus Ravennae

Ravenna Grass

Erianthus ravennae, commonly known as Ravenna Grass, is a large, warm-season ornamental grass valued for its towering height and dramatic, silvery plumes. Long, arching green leaves form a bold clump through spring and summer, followed by tall, upright flower stalks in late summer that produce large, feathery silver plumes that rise well above the foliage and persist into winter, providing strong vertical interest and texture.

Type: Perennial ornamental grass

Mature Size:
Width: 4–6 ft
Height: 6–8 ft (to 10–12 ft in flower)
(10-year size: forms large clumps)

USDA Zones: 6a–9b
Form: Large, upright, arching clump
Light: Full sun
Soil: Average to dry, well-drained soils; adaptable
Water: Moderate; drought tolerant once established

Wildlife: Provides cover for birds


Features & Landscape Uses


Extremely tall plumes for dramatic vertical impact



Bold focal point or screening plant



Adds late-season interest and winter structure



Ideal for large landscapes and naturalized areas




Care
Cut back to the ground in late winter before new growth begins (wear gloves due to sharp leaves). Plant in full sun for best flowering and structure. Prefers well-drained soils and tolerates drought once established. Can be divided in spring if needed.

Plant type

Ornamental Grass

Height

6-8'

Width

4-6'

Hardiness zones

6–9

Sunlight

Full Sun

Bloom time

Fall, Late Summer

Flower color

White

Soil

Clay, Dry Area, Highly Adaptable, Well Drained

Shape

Clump

Deer resistant

Yes

Drought tolerant

No