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Northwest Blooms · Perennials

Cortaderia selloana

Pampas Grass

Cortaderia selloana
Family
Poaceae
Height
6-10 feet
Width
4-6 feet
Flower color
Large, silvery-white plumes held high above the foliage on tall stalks
Foliage color
Gray-green, slender, arching leaves
Bloom time
Late summer to fall, with plumes persisting into winter
Light
Full sun
Water
Low to moderate
Maintenance
Low; however, due to its sharp-edged leaves, care should be taken when handling. Pruning dead foliage annually is recommended
Growing zone
USDA zones 7 to 10
Wildlife
Birds, which use the plumes for nesting material

About this plant

Cortaderia selloana, commonly known as pampas grass, is a tall, ornamental grass native to South America, particularly Argentina, Brazil, and Chile. It produces large, feathery plumes from late summer into fall, adding a soft, elegant texture to the landscape. The plumes, often creamy white or pale pink, rise above the arching, razor-edged green leaves, creating a dramatic, billowing effect in the breeze.

The plumes retain their form well into winter, offering seasonal interest even as other plants fade. This grass is often used as a focal point in gardens or naturalized areas, with its bold presence and graceful movement. Its drought tolerance and ability to adapt to various conditions make it both visually appealing and resilient.

Works well in

Borders · Sun Gardens · Bird Gardens · Waterwise Gardens · Cut Flower Gardens

Companion plants

Russian sage · Sedums · Peonies · Coneflowers · Salvias · Shasta daisies

Design tip

Flowers in the quietest months make this worth a sheltered spot within sight of a window or door. Give it open sun and room to fill out, and repeat it in threes or fives so the planting reads as one sweep instead of scattered dots.