Yard Rush

Juncus tenuis

Family: Juncaceae
Genus: Juncus (JUN-kus) (Info)
Species: tenuis (TEN-yoo-iss) (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


6-12 in. (15-30 cm)


6-9 in. (15-22 cm)


USDA Zone 2a: to -45.5 C (-50 F)

USDA Zone 2b: to -42.7 C (-45 F)

USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

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)

Sun Exposure:

Full Sun

Sun to Partial Shade


Unknown - Tell us

Bloom Color:



Bloom Time:

Late Spring/Early Summer

Mid Summer


Grown for foliage


Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

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:

Bag seedheads to capture ripening seed

Collect seedhead/pod when flowers fade; allow to dry


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

Benton, Kentucky

Georgetown, Kentucky

Louisville, Kentucky

Minneapolis, Minnesota

Frenchtown, New Jersey

Media, Pennsylvania

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Gardeners' Notes:


On May 22, 2017, Rickwebb from Downingtown, PA wrote:

This Slender or Path Rush or Wiregrass is native thorough the US and much of Canada. It grows about 6 to 24" high and it is sort of semi-evergreen. In the wild it grows in wet soils, but it can grow in a moist, well-drained soil in a garden or landscape. It tolerates heavy clay. It 's known to grow along pathways where foot traffic compacts the soil.


On May 5, 2013, natureguyfrog from San Diego, CA wrote:

These are corrections that I have submitted to "Admin". I hope that some of the essential information listed above can be changed and there is also additional info here that may be of use to other gardeners:

May 5, 2013
On http://davesgarden.com/guides/pf/go/76239/ I found an error. The error that I found is:
Juncus tenuis:
Height: 7" to 24" (it is doubtful that is ever more than 24")

Bloom Color: inconspicuous/none (the yellow-green or chartreuse is descriptive for the Cyperus species in the picture not for J. tenuis)

Juncus tenuis unlike many Cyperus species is NOT a noxious weed in most if not all situations. Even in the wild it is rarely seen in ve... read more


On Jan 3, 2005, melody from Benton, KY (Zone 7a) wrote:

A common site in boggy ,low lying areas. The strong stems make it difficult to cut with an ordinary weed whacker. It tends to stay in the wetter areas, so isn't really invasive.