Pennisetum, Fountain Grass, Hardy Oriental Fountain Grass, Ornamental Grass 'Karley Rose'

Pennisetumorientale

Family
Poaceae (poh-AY-see-ee)
Genus
Pennisetum (pen-ih-SEE-tum)
Species
orientale (or-ee-en-TAY-lee)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Grown for foliage
Herbaceous
Height
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
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)
Danger
N/A
Bloom Color
Rose/Mauve
Cream/Tan
Bloom Time
Late Summer/Early Fall
Mid Fall
Other Details
Category
Ornamental Grasses and Bamboo
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Chartreuse/Yellow
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Patented
Propagation Methods
By dividing the rootball
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Marietta, Georgia

Herrin, Illinois

Lincoln, Illinois

Palmyra, Illinois

Washington, Illinois

South Bend, Indiana

Princeton, Kansas

Potomac, Maryland

Topsfield, Massachusetts

O Fallon, Missouri

Exeter, New Hampshire

Hudson, New Hampshire

Spofford, New Hampshire

Boonton, New Jersey

Calabash, North Carolina

Raleigh, North Carolina

Dalton, Ohio

Defiance, Ohio

West Portsmouth, Ohio

Roseburg, Oregon

Downingtown, Pennsylvania

Milford, Pennsylvania

Renfrew, Pennsylvania

Johns Island, South Carolina

Christiana, Tennessee

Memphis, Tennessee

Iredell, Texas

Missouri City, Texas

Vernal, Utah

Norfolk, Virginia

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Featured Videos

Gardener's Notes:

11
positives
3
neutrals
0
negative
Sort By:
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R
R
Potomac, MD | September 2016 | positive

Should this plant be trimmed back regularly?
Should it be pruned back to the ground in the fall, winter, or early spring?
Thanks!

R
Downingtown, PA | January 2014 | positive

This grass from western Asia, the original Orient to Europeans, not East Asia, makes a big handsome mound. It is soft and easy to dig up ...Read More

B
Westover, WV | September 2013 | positive

we have got one cultivar from the local Lowe's and another from seed. Flower color differs but the vigor and size are similar. Carefree...Read More

K
Spofford, NH | May 2013 | neutral

May 30, 2013 these plants have not yet germinated in Spofford, NH (5A). We have had a wet cool Spring, but no signs of green growth as o...Read More

K
Cuyahoga Falls, OH | November 2012 | positive

Not sure if questions are allowed, I love this plant but wonder how it will hold up through the snow? Cut back now or spring?

H
St. Louis, MO (Zone 6a) | January 2011 | positive

Pennisetum orientale 'Karley Rose'

This plant has been in my gardens now for nearly 10 years and never has it suffered fro...Read More

M
Topsfield, MA (Zone 6a) | March 2010 | positive

This is my favorite grass. So vigorous and long-blooming! I second the comment about them flopping in the rain, but I also second the com...Read More

J
J
Boonton, NJ | July 2009 | positive

This grass gets the most compliments when people pass by. It comes up reliably each year and keeps its form perfectly. It only lays dow...Read More

M
Southeastern, NH (Zone 5b) | October 2008 | positive

It is true that these flop in rain, however in full sun they pop right back up all on their own. That is, after the sun comes out and the...Read More

G
(Zone 5a) | September 2007 | neutral

Blooms June-August in my garden, beautiful heads. USPP #12909

K
K
Cotuit, MA (Zone 7a) | July 2007 | positive

Lovely plant. It looks great at the back of my flower garden, but for me it grows 4 feet tall. And this is only the second year!

W
Lincoln, IL | June 2007 | positive

This is one of my favorite grasses, as it moves so gracefully in a breeze. It's one major drawback in my garden is that after a rain it ...Read More

A
Missouri City, TX (Zone 9a) | September 2006 | positive

This grass looks amazing in mass plantings!

P
West Portsmouth, OH (Zone 6a) | September 2003 | neutral

My vote is still out on this grass.
I love the plumes and the overall plant is attractive, at a distance. Upclose and personel...Read More

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