Isolepis Species, Fiber Optic Grass, Low Bulrush, Salt Marsh Bulrush, Tufted Clubrush

Isolepiscernua

Family
Cyperaceae (sy-peer-AY-see-ee)
Genus
Isolepis (eye-soh-LEP-is)
Species
cernua (SER-new-a)
Synonym
Scirpus cernuus
Isolepis gracilis
Scirpus filiformis
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Partial to Full Shade
Foliage
Grown for foliage
Height
6-12 in. (15-30 cm)
Spacing
9-12 in. (22-30 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
Seed is poisonous if ingested
Parts of plant are poisonous if ingested
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Pollen may cause allergic reaction
Bloom Color
White/Near White
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Ponds and Aquatics
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
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 the rootball
Seed Collecting
Regional

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

Phoenix, Arizona

Brentwood, California

Clayton, California

Hemet, California

Menifee, California

Oakland, California

Lake City, Florida

North Miami Beach, Florida

Pensacola, Florida

Shalimar, Florida

Elgin, Illinois

Inwood, Iowa

Dearborn Heights, Michigan

Mason, Michigan

Mount Laurel, New Jersey

Neptune, New Jersey

Elizabeth City, North Carolina

Four Oaks, North Carolina

Smithfield, North Carolina

Dayton, Ohio

Hulbert, Oklahoma

Florence, Oregon(2 reports)

Portland, Oregon

Conway, South Carolina

North Augusta, South Carolina

Conroe, Texas

Dallas, Texas

Fort Worth, Texas(2 reports)

La Vernia, Texas

Lampasas, Texas

Midland, Texas

Missouri City, Texas

Rosharon, Texas

San Antonio, Texas

Farmington, Utah

Hampton, Virginia

Kalama, Washington

Midland, Washington

show all

Featured Videos

Gardener's Notes:

11
positives
10
neutrals
3
negatives
Sort By:
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M
Lampasas, TX | June 2017 | negative

In 2015 we built a 2 acre pond on limestone and clay soil.Luckily we had a lot of rain and it filled quickly. To my dismay in 2017 this p...Read More

V
(Zone 8a) | April 2012 | neutral

rating it neutral as new in my garden. Will grow in a pot, supposed to grow no more than 6" tall. This is a dwarf form of isolepis cernua.

S
Los Angeles, CA | June 2011 | negative

HELP! I love this little plant, but I can't get straight info on it. I have it planted in a mostly sunny area. The soil is clay, but I...Read More

H
Parkville, MD | April 2011 | positive

Grows well in containers without much drainage 1/8th inch hole in a 6 -8 inch decorative plastic container. Likes to be root bound. It s...Read More

M
Kansas City, MO | September 2010 | neutral

I live in a suburb of Kansas City, Missouri on the North side of the Missouri River. We have been noticing what appears to be this fibe...Read More

P
Chelan, WA | April 2010 | positive

I love Dave's website! It is very informative and like the sharing of experiences. One question i have regarding the Fiber Optic Grass, S...Read More

B
Four Oaks, NC | January 2010 | positive

Received as a gift it grew nicely on a sunny screened in porch here in NC. I was told to keep it in water as it does well as a fountain o...Read More

M
Elgin, IL | November 2009 | positive

I love the appearance of this plant so purchased and placed in a container with annuals this past year. Now I am trying to decide how to...Read More

M
| June 2009 | neutral

Recently Purchased /Master-Gardner's Show in Canby, OR; in May `09.
Seller/Grower said that to PROPIGATE.. take/SAVE the little E...Read More

D
D
Lovettsville, VA | July 2008 | negative

I bought this plant because I thought it was different and beautiful. It was listed as an annual, needing full sun, moderate water and gr...Read More

S
Louisville, KY (Zone 6b) | June 2007 | neutral

This plant seems to be popping up incrasingly where it was not planted. Although it doesn't seem to be a problem yet. I would consider ...Read More

W
W
Belleville , IL (Zone 6b) | March 2007 | positive

I bought this plant because it looked really cool. I keep it as a houseplant in a sunny window. I just let it sit in about a half inch o...Read More

A
A
San Francisco, CA | October 2004 | neutral

HELP! I bought home a pot of fiber optic grass just 5 days ago and it appears to be dying already! the woman who sold it to me reminded m...Read More

L
Archie, MO (Zone 5b) | August 2004 | positive

This grows wild in our natural ponds. I dig it up and pot it for my garden ponds as a marginal.

B
SC, MT (Zone 5a) | August 2004 | positive

This is in my outdoor pond in the summer and my small indoor pond in the sunroom in the winter. I brought something home from a nursery ...Read More

J
Shalimar, FL (Zone 8a) | June 2004 | positive

I have this plant in a container this season. It is about 8" tall and very attractive. It has been growing healthily for several months ...Read More

B
| January 2004 | neutral

I bought a tray of plugs and planted them up in October 2003 and thought it best to keep them in a unheated shed ( insulated and lighting...Read More

R
R
| November 2003 | neutral

i saw this plant in our local garden center and thought what a beautiful plant and bought it, on the tag that came with it it said "canno...Read More

K
K
Oostburg, WI (Zone 5b) | November 2003 | positive

I received this plant as a free gift for purchasing that particular day. Didn't have a clue what it needed so I put it in a pot, set the ...Read More

M
M
Tipton, IN (Zone 5a) | September 2003 | neutral

It is such a pretty plant but when I got some for the park beds that I a friend take care of, the tag didn't mention it was an aquatic. ...Read More

P
P
(Zone 9a) | September 2003 | neutral

It is not actually a grass because they all belong to the family Poaceae (Gramineae). The Cyperaceae is the family to which all the sedge...Read More

H
Northern California, CA | September 2003 | positive

This is a miniature grass/sedge. It came tagged with the old name Scirpus cernuus cv. 'Tina Turner Grass.' I haven't been able to...Read More

S
S
Florence, OR | April 2003 | positive

I have been growing this plant indoors and it does great as long as I remember to water it a lot. I have seen it in many nurseries out he...Read More

M
M
| April 2003 | neutral

It is beautiful!!!Thats why I bought it as soon as I saw it. But couldnt get any info on it...they didnt even know if it was an annual or...Read More

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