Pruning guide
How to prune fiber optic grass
More fiber optic grass care
Pruning fiber optic grass — FAQ
When should I prune fiber optic grass?
Spring and summer when actively growing; avoid cutting back in winter. Trim overly long or untidy stems back to a few inches using scissors. Remove brown stems at the base as they appear. Divide congested clumps in spring, cutting the divisions back to a few inches to stimulate dense new growth.
How often does fiber optic grass need pruning?
As needed (light trimming); division every 1–2 years. Fiber Optic Grass (Isolepis cernua) grown as a houseplant needs minimal pruning. If it becomes leggy or sprawling, give it a general trim — it regrows quickly. Remove any brown or yellow stems at the base as they appear. Avoid shearing in winter when growth slows. Dividing congested clumps in spring refreshes the plant more effectively than pruning alone.
How do you prune fiber optic grass?
Trim overly long or untidy stems back to a few inches using scissors. Remove brown stems at the base as they appear. Divide congested clumps in spring, cutting the divisions back to a few inches to stimulate dense new growth.