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Grass Isolepis cernua 'Live Wire'

Fiber Optic Grass

Isolepsis Cernua is commonly referred to as Live Wire or Fiber-optic Grass. A member of the Sedge family, this ornamental is widely used in containers and in landscaping mixed with colorful bedding plants. The Live Wire is a bit more delicate than the Carex. Its foliage may start to yellow when temperatures dip to 45° F. The slender grassy tendrils grow in a thick clump and curl over to make a unique spray of color resembling a fountain. Delicate silvery flowers appear atop its tiny stems, making it appear as a tuft of tiny fiber-optic threads. They are fantastic in containers alone, edging a pathway, or with beautiful mounds of color or as a center, surrounded by color. Whatever your choice, this plant is fairly easy to please.


6-8 Inches



18-20 Inches

Homeowner Growing
& Maintenance Tips

Live Wire tolerates full sun to partial shade and prefers moist to wet soil. It could even be used waterside for interest since it likes to be kept moist. It may be moved indoors during the Winter months and put back out in the Spring. 


Interesting Notes

  • Unique beauty for Spring, Summer and Fall landscape
  • Delicate green foliage to frame beds and containers
  • Heat and light tolerant
  • Division should be done in early Spring months


USDA Hardiness Zone 8-10

Download Additional Information

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Bench Card

Great Companions

Dwarf Periwinkle Dwarf Periwinkle (Vinca Minor 'Bowles Cunningham')
Upright Lobelia Upright Lobelia (Lobelia erinus Techno 'Heat Upright Light Blue')
Impatiens Impatiens (Impatiens walleriana Xtreme 'Red')

Characteristics & Attributes

Focal Point
Great Foliage
Border or Bed
Indoor Forcing
Rock Garden
Purchase Size(s):
Partial Shade
Foliage Color
Season of Interest (Flowering)
Soil Moisture Preference
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