Spring Pruning of Ornamental Grasses

Ornamental grasses are a beautiful addition to any landscape.  Even during the winter months their tan stalks and seed plumes add beauty to the garden, as well as food and shelter for birds.  


When signs of spring begin to appear in the garden it is time to trim back your perennial grasses.   When trimming back ornamental grasses, do not trim back all the way to the ground as this will expose the crown of the plant which can cause winter kill. Instead trim back to no shorter than 3 inches. For taller varieties leave up to 18 inches. In addition to protecting the crown of the ornamental grass, the grass stubble left will act as a floral frog and help to hold the new grass growth upright and prevent flopping.