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Mexican Feather Grass

Nassella (Stipa) tenuissima

Mexican Feather Grass - Nassella (Stipa) tenuissima
Mexican Feather Grass - Nassella (Stipa) tenuissima
Mexican Feather Grass - Nassella (Stipa) tenuissima

Mexican Feather Grass

Nassella (Stipa) tenuissima

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  • Nassella tenuissima, often still referred to as Stipa tenuissima or Mexican Feather Grass, is all about movement. It has an incredibly fine texture that almost disappears from a distance, then catches the light and comes alive when the wind moves through it.
  • The foliage forms soft, flowing clumps of hair like blades that shift from fresh green to a warm blond tone as the season progresses. In bloom, it sends up delicate, airy seed heads that create a hazy, shimmering effect—especially when planted in groups.
  • This is one of those plants designers use when they want to break up heavier forms. It pairs well with bold succulents, structured shrubs, or hardscape elements, adding contrast and a more natural, relaxed feel.
  • It does best in full sun and prefers well drained soil. Once established, it’s very drought tolerant and doesn’t need much attention. In fact, it often performs better with less water and minimal care.
  • Typically, it grows around 1 to 2 feet tall and wide, forming a soft, mounded clump. It is well suited for USDA zones 7 through 10 and is quite adaptable in mild climates. The foliage is evergreen to semi evergreen depending on conditions. This plant is seen frequently here in Southern California landscapes.
  • One important thing to be aware of—this plant can reseed freely and naturalize in the landscape. In some areas, it is considered invasive. Plant with caution, especially near open spaces or natural areas where it may spread beyond where it’s intended. 
  • This plant has low toxicity and is generally a safe choice for gardens with pets and children.
  • The flowers and seed heads can attract minor wildlife interest and add seasonal texture.
  • It is generally deer and rabbit resistant, making it a dependable option for low maintenance plantings.
  • Nassella tenuissima fits especially well into Mediterranean, naturalistic, and modern garden designs, where its movement and softness can be used to contrast more structured elements.
  • If you’re looking to add motion and a lighter touch to the landscape, this plant does that beautifully—just be mindful of where you place it.

Water Needs: Low, Low to Moderate
Mature Width: 1-2'
Foliage: Semi-deciduous
Mature Height: 1-2'
Form: Grasslike
USDA Zone: 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b

Proper planting technique will help your plants thrive! Follow these simple steps to help your plants establish quickly, develop a strong root system, and live longer:

  • Properly dig the hole
  • Amend the soil to suit each particular plant
  • Place the plant and backfill the soil
  • Provide ample water for each particular plant
  • Review our how to plant guide!

For detailed information, please download our planting guides: