Nassella (formerly Stipa) – Mexican Feather Grass – Nassella (formerly Stipa) tenuissima
Dead-Heading Not Necessary
Native to North America
Stipa is a neutral grass. Where temperatures get colder than 20 degrees F, the plants should be treated as annuals. Once the grass turns brown it can either be removed immediately or removed in the spring. It should not be expected to live through the winter and begin growing again in the spring.
In areas where winter temperatures remain above 20 degrees it should be considered a perennial and the following information should be useful. Evergreen or neutral grasses are usually plants that look like grasses but aren't actually classified as grasses, they are generally called grass-like plants.
Divide evergreen or neutral grasses and grass-like plants in spring only.
Evergreen grasses don't ever go dormant. Dividing plants wounds them to some degree. For evergreen grasses this wounding will really affect their ability to live through the winter.
This grass will beautify your garden all season.
Maintenance Category Easy
Water Category Average
Flower Form Container, Grass, Landscape
pH B - pH 5.8 - 6.2
EC (2:1 Extraction Method) 0.6 - 0.9
Fertilization 100 - 150
Light Requirements Medium
Water Requirements Moderate to Moist
Rooting Out Temperature 65 - 72° Fahrenheit
Growing On Temperature 65 - 72° Fahrenheit
Holding Temperature 40 - 50° Fahrenheit
Planting and Timing Information
Spring to Summer Sales. Standard PPP.
Finishing Times [weeks]
4-5" and Quart Pot : 4-7
6" and Gallon Pot : 6-9
7-9" Pot :
10-12" and Two Gallon Pot :
Pinching and Growth Regulators
No pinching or growth regulators needed.
Pest and Disease Management
General pest and disease practices as listed in notes.
Do not allow to dry out or brown tips will occur.