Rose Fountain Grass, Purple Fountain Grass 'Cupreum'

Pennisetum setaceum

Family: Poaceae (poh-AY-see-ee) (Info)
Genus: Pennisetum (pen-ih-SEE-tum) (Info)
Species: setaceum (se-TAY-see-um) (Info)
Cultivar: Cupreum


Ornamental Grasses and Bamboo

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


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


Unknown - Tell us

Bloom Color:



Scarlet (Dark Red)

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Late Fall/Early Winter


Grown for foliage

Other details:

May be a noxious weed or invasive

Soil pH requirements:

7.9 to 8.5 (alkaline)

Patent Information:


Propagation Methods:

By dividing the rootball

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds


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

Phoenix, Arizona

Queen Creek, Arizona

Scottsdale, Arizona

Castro Valley, California

Palm Springs, California

San Bruno, California

Big Pine Key, Florida

Hollywood, Florida

Inverness, Florida

Labelle, Florida

Orlando, Florida

Sebring, Florida

Titusville, Florida

Elephant Butte, New Mexico

Austin, Texas

Missouri City, Texas

Clarksville, Virginia

show all

Gardeners' Notes:


On Oct 26, 2007, shazco from London,
United Kingdom wrote:

I have researched this plant and my info shows that this particular cultivar in not invasive. The seeds are sterile unlike most, if not all, of the other varieties. I intend to use this plant in Barbados and it is vital that it does not become a weed.


On Jun 22, 2005, RMJFL from Orlando, FL wrote:

Orlando, FL.
I planted a small clump 6x6 inches of red fountain grass and found that it grew to a height of about 4 feet tall. With proper handling and plant maintenance, it has not "spread" to any other parts of my yard or neighbors yard. I edge the base of the ground ball of the plant about every 6 months, it is a quick grower in height but not in width spread. It's pretty, dark cranberry red stalks with a hint of light tan grass at the base. The cranberry red and green seed (or bloom wisps) blow in the wind and give a slight rustling sound that I find soothing.


On May 12, 2005, Judy81350 from Queen Creek, AZ (Zone 9a) wrote:

This plant is a real gem for added background landscaping. . I never water it and it seems to do quite nicely. The seasonal rains seem to do it quite nicely also. It seeds itself very well. Very hardy in zone 9a.

06/11/05: I changed the rating from positive to negative because I just learned that this grass is a noxious weed in Arizona and other places. There is a group of people who go around pulling this grass out anywhere they find it. It is requested that we pull out this grass if we have it in our yards or if we see it along roadsides. It is not native to Arizona and chokes out the native vegetation.