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Napiergrass, Elephant Grass

Pennisetum purpureum

Family: Poaceae (poh-AY-see-ee) (Info)
Genus: Pennisetum (pen-ih-SEE-tum) (Info)
Species: purpureum (pur-PUR-ee-um) (Info)

Category:

Ornamental Grasses and Bamboo

Perennials

Foliage Color:

Blue-Green

Burgundy

Dark/Black

Bronze-Green

Bloom Characteristics:

Flowers are good for cutting

Flowers are good for drying and preserving

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Grow outdoors year-round

Suitable for growing in containers

Height:

10-12 ft. (3-3.6 m)

Spacing:

24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

Hardiness:

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

Danger:

Unknown - Tell us

Bloom Color:

Cream/Tan

Bloom Time:

Mid Fall

Late Fall/Early Winter

Foliage:

Grown for foliage

Evergreen

Other details:

May be a noxious weed or invasive

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

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

Seed Collecting:

Unknown - Tell us

Regional

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

San Diego, California

Groveland, Florida

Gardeners' Notes:

1
positive
0
neutrals
2
negatives
RatingContent
Positive

On Jul 20, 2017, natureguyfrog from San Diego, CA wrote:

Please do not be so quick to enter a final verdict! Florida is not the center of the world! I lived in Miami/SWMiami for six years so I have something else to offer before your final judgement!

So far no problem in a desert climate such as San Diego, CA. Numerous other Savannah type Pennisetum species have adapted to mediterranean conditions here and continue to propagate usually without much impact. NAPIER grass is a tropical species requiring much moisture and warmth during a long growing season. It will only bloom when there is a long warm period with adequate moisture. This is the case in Florida but not here! That is why Florida is rampant with alien plant and animal species.

Pennisetum setaceum rubrum and some of Pennisetum cultivars ie. MOUDRY for examp... read more

Negative

On Mar 29, 2016, coriaceous from ROSLINDALE, MA wrote:

The Florida Exotic Pest Plant Council has now listed this weed as a Category l invasive. That means that it has been proven to alter native plant communities by displacing native species, changing community structures or ecological functions, or hybridizing with natives.

Negative

On Jul 30, 2011, nel5397 from Groveland, FL wrote:

This stuff is very invasive. It will choke out nearby vegetation.

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