Digitaria californica

Digitaria californica

Arizona cottontop

Previous scientific name(s): Trichachne californica

Formerly known as Trichachne californica. Warm season, very drought tolerant, perennial bunchgrass adapted to deep well-drained soils. Extremely palatable to livestock and very rarely found in pure stands. Will repeatedly go to seed when moisture is available. Its white cotton-like seed head is attractive, making this plant useful as an ornamental grass. Also useful for improving rangelands.

Varieties: 
Loetta

Adapted to a wide range of soils. Selected for vigorous growth, seed production, forage production, and ability to proliferate. Developed for revegetation projects in southern Arizona and southwest New Mexico. (Released 1999, source of ecotype: Pima County, Arizona)

Species Attributes

Height: 
13 
- 24 
in.
Season: 
Warm
Life Form: 
Bunchgrass
Native or Introduced: 
Native
Precipitation: 
in.
Sun & Shade Tolerance: 
Full Sun
Part Sun
Elevation: 
ft.

Soil Texture

Coarse: 
Marginal
Moderately Coarse: 
Best
Medium: 
Best
Moderately Fine: 
Average
Fine: 
Marginal

Soil pH

Acidic: 
Not Adapted
Neutral: 
Best
Basic: 
Marginal
Seeding Rate: 
- 4 
PLS lbs/Acre
Pure Seed per Bushel: 
3.20 lbs.
Seeds per Pound: 
980,000
Planting Season: 
Spring
Summer
Fall
Germination Time: 
Days
Mycorrhizal Dependent: 
Yes