Plant Profile: Juncus tenuis

Taxonomy: Juncus tenuis

Names

Wire Grass

  • Photo of Juncus tenuis (Juncus tenuiss)

Phonetic Spelling:JUN-kus TEN-yoo-iss

Genus:Juncus

Species:tenius

Family:Juncaceae

The 'Blue Arrows' is a variety of rush belonging to the Juncaceae family. This genus, Juncus, thrives in cold environments and prefers moist, dense soils. You can commonly find these plants in marshes, swamps, and other weedy areas such as roadsides, sidewalks, and parking strips. For optimal growth, it’s best to plant them in full sunlight near pond edges, in rain gardens, rock gardens, or in pots.

Regarding pests, diseases, and other issues: there are no major concerns, although some people may view this plant as invasive.

Juncus tenuis Feature Summary

Juncus tenuis Image Gallery

Tags

#weedy
#low maintenance
#erosion control
#water plant
#wet sites
#pond margins
#NC native
#thickets
#swamps
#rock gardens
#naturalized area
#native ornamental grass
#wet soils tolerant
#clay soils tolerant
#rushes
#container plants

Similar Plants

Juncus tenuis Feature Summary

Attributes
East Canada to Mexico
Perennial
Flowers
Insignificant green flowers are clustered at the stem tips appear May to September. With the first frost they turn brown.
Spring
Summer
Whole Plant Traits
Perennial
Native Plant
Weed
Ground Cover
Ornamental Grasses and Sedges
Clumping
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Moist
Occasionally Wet
Occasional Flooding
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
2a
2b
3a
3b
9a
9b
Landscape
Rain Garden
Native Garden
Water Garden
Mass Planting
Drought
Wet Soil
Erosion
Container
Naturalized Area
Riparian
Pond

Juncus tenuis Attributes

Juncus tenuis: Country Or Region Of Origin

East Canada to Mexico

Juncus tenuis: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Juncus tenuis Flowers

Juncus tenuis: Flower Description

Insignificant green flowers are clustered at the stem tips appear May to September. With the first frost they turn brown.

Juncus tenuis: Flower Color

filter_vintage
Green

Juncus tenuis: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Juncus tenuis: Flower Bloom Time

Winter
Spring
Summer
Fall

Juncus tenuis Leaves

Juncus tenuis: Leaf Description

Medium green leaves

Juncus tenuis: Leaf Color

spa
Green

Juncus tenuis: Hairs Present

No
Yes

Juncus tenuis: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Juncus tenuis Whole Plant Traits

Juncus tenuis: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Juncus tenuis: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Juncus tenuis: Maintenance

Low
Medium
High

Juncus tenuis Cultural Conditions

Juncus tenuis: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Juncus tenuis: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Juncus tenuis: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Juncus tenuis: USDA Plant Hardiness Zone

thermostat
2a
thermostat
2b
thermostat
3a
thermostat
3b
thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Juncus tenuis: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Juncus tenuis Stem

Juncus tenuis: Stem Is Aromatic

No
Yes

Juncus tenuis Landscape

Juncus tenuis: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Juncus tenuis: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Juncus tenuis: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Juncus tenuis: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Juncus tenuis: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy