Juncus, Corkscrew Rush 'Unicorn'

Juncuseffusus

Genus
Juncus (JUN-kus)
Species
effusus (eff-YOO-sus)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Grown for foliage
Height
18-24 in. (45-60 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Bloom Color
Green
Bloom Time
Late Summer/Early Fall
Other Details
Category
Ponds and Aquatics
Water Requirements
Foliage Color
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)
Patent Information
Propagation Methods
By dividing the rootball
Seed Collecting
Regional

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

Fortuna, California

Glendale, California

Livermore, California

San Francisco, California

Fountain, Florida

Marietta, Georgia

Idaho Falls, Idaho

Byhalia, Mississippi

Utica, New York

Youngstown, Ohio

Wilkes Barre, Pennsylvania

Maryville, Tennessee

Lexington, Virginia

Concrete, Washington

Edmonds, Washington

Esperance, Washington

La Conner, Washington

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Featured Videos

Gardener's Notes:

6
positives
1
neutral
0
negative
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H
Livermore, CA (Zone 9b) | August 2013 | positive

I purchased three of these (I always buy plants in 3’s or 5’s) in 6” pots 3 years ago. They were all the rage 6-7 years ago, at The...Read More

O
(Mary) Anchorage, AK (Zone 4b) | November 2008 | neutral

I planted two of these in my pond in mesh baskets and sunk them to three inches over the soil line. They did fine all summer and for wi...Read More

S
Maryville, TN | June 2008 | positive

Helpful tip for those without wet growing conditions---
I've found a microclimate that provides great growing conditions neede...Read More

E
Idaho Falls, ID (Zone 5a) | February 2006 | positive

A good local garden center here in SE Idaho carries this and classifies it as both a perennial grass and an aquatic, which is accurate. ...Read More

C
Crossville, TN (Zone 7a) | July 2004 | positive

Yet another plant you must have. It's very interesting with it's curly foliage. Ours is growing in our pond.

S
San Francisco, CA | June 2003 | positive

I am growing this in a container on my deck in light shade. It's doing well, despite being an aquatic. [I didn't know that when I got it.]

Z
Scotia, CA (Zone 9b) | June 2003 | positive

This plant adds visual interest to the pond with its contrasting texture and unique form.

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