Hello! We just bought a house in the fall that has some huge (and gorgeous!) pampas grass plants along our driveway. They are super full and flowed and swayed all winter. However now that spring is upon us, should we be pruning the tan and colorless spikes? Or do we leave it alone for the new growth to push out the old? If we are to prune, how and when?
For any needed reference - these plants are a nice 9-10 ft tall. The base is pretty thick and it’s impossible to know if they were pruned last spring. Thanks!