General Care Instructions Ornamental grasses prefer the sun, and like to be moist the first year they are planted. Afterwards, they require little care. Leave your grasses stand through the winter. They are beautiful when snow-covered. Cut your grasses back when new growth appears in April.
Most grasses are late to renew growth.
Fertilize your grasses in spring and again six weeks later with a high phosphorus fertilizer to encourage large numerous seed heads and deep root growth.