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Argentine Needle-Grass

Stipa tenuissima

Poaceae · grass sedge · native

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Puget Sound

Argentine needle grass, also called Mexican feather grass or finestem needlegrass, is a delicate, finely-textured bunchgrass native to South America. Growing 12-18 inches tall, it produces narrow, hair-like leaves and feathery, fine panicles that wave in the slightest breeze.

Argentine needle grass is extremely drought-tolerant and thrives in full sun with well-drained, sandy soil and minimal moisture once established. Hardy to zones 7-10, it is short-lived (4-5 years) but self-seeds readily in appropriate conditions. The plant is valued for its ethereal texture and fine, dancing seed heads.

Quick Facts

Height
1-2 ft
Spread
1-2 ft
Growth Rate
Medium
Light
Sun to Part Shade
Soil
Moist, Very Dry, Well Drained
Hardiness
Zone Zones 7a–10b
Bloom Time
fall, summer
Fall Color
Cream/tan
Origin
South Central U.S.A. to Mexico and Argentina