Paspalum, Dallis Grass

Paspalum dilatatum

Family: Poaceae (poh-AY-see-ee) (Info)
Genus: Paspalum (PASS-pal-lum) (Info)
Species: dilatatum (dil-uh-TAY-tum) (Info)


Ornamental Grasses and Bamboo


Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)


9-12 in. (22-30 cm)


USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade


Pollen may cause allergic reaction

Bloom Color:

Pale Green

Bloom Time:

Mid Summer

Late Summer/Early Fall




Other details:

May be a noxious weed or invasive

Soil pH requirements:

4.6 to 5.0 (highly acidic)

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

From seed; direct sow after last frost

Seed Collecting:

Bag seedheads to capture ripening seed

Allow seedheads to dry on plants; remove and collect seeds


This plant has been said to grow in the following regions:

San Diego, California

Memphis, Tennessee

Caddo Mills, Texas

Garland, Texas

Mc Kinney, Texas

San Antonio, Texas

show all

Gardeners' Notes:


On Dec 27, 2006, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Paspalum, Dallis Grass Paspalum dilatatum is naturalized in Texas and other States and is considered an invasive plant in Texas.


On Jun 27, 2006, aerikson from Memphis, TN wrote:

Interesting background information. I have used dry amonium nitrate directly on the plant to kill it. This provides plenty of nutrition for surrounding plants to grow on when spreading back into dead dallis grass area.


On Jul 19, 2005, htop from San Antonio, TX (Zone 8b) wrote:

Dallis grass (dallisgrass, paspalum) is one of the earliest introduced pasture grasses. It is native to the humid subtropics of Argentina, southern Brazil and Uruguay; but, it is now widely distributed. A perennial cluster grass, it is grown as pasture grass (usually mixed with legumes) for grazing by usually cattle and horses in the southern United States. It is a fast growing perennial that grows on a wide variety of soils. Dallis grass does best on moist, alluvial, fertile clays and loamy bottom lands. Withstanding extreme drought due to its extensive root system, it requires adequate rainfall at some time of the year.

Its main attributes are that it is highly palatable (animals), had a high productivity rate and withstands heavy grazing and trampling along with its comp... read more