should pampas grass be cut back
Step 1. Prune the pampas grass in late winter or early spring, just as new shoots are beginning to emerge. Cut the dead growth back to ground level using the pruning shears. Step 2. Broadcast a light fertilizer, such as 10-10-10 or 8-8-8, around the plant. Use approximately 1 pound of fertilizer for every year of growth.