Fiber Optic Grass is a neutral grass.  Where temperatures get colder  than 20 degrees F, the plants should be treated as annuals.  Once the  grass turns brown it can either be removed immediately or removed in the  spring.  It should not be expected to live through the winter and begin  growing again in the spring.   
In areas where winter temperatures remain above 20 degrees it should  be considered a perennial and the following information should be  useful.  Evergreen or neutral grasses are usually plants that look like  grasses but aren't actually classified as grasses, they are generally  called grass-like plants.  
Divide evergreen or neutral grasses and grass-like plants in spring only. 
Characteristics: 
Adaptable as a Houseplant 
Deadheading Not Necessary                       
Grass                       
Heat Tolerant                       
Low Maintenance                       
Water Plant
Best Uses: 
Container Plant 
Near Water Gardens or Ponds
Accent Plant
Border Plant
Mass Planting
 
Hardiness:
Sunset zones: 7-24
USDA zones: 8-10
Mature size:
Height: 6-12 inches (15-30 cm)
Width: 20 inches (50 cm) 
Flowering period:
All year
Flowering attributes:
Silvery/white flower heads born on the end of green stems. 
              
  Leaf attributes:
Threadlike, green stems. 
Growth habit:
Clump forming
Light:
Full sun to partial shade
Soil:
Moist
Propagation Methods:
Division in early spring 

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