Cut it back in the spring, in other words cut off the straw . This lets the new growth come thru. It is a very tall plant and I think bullet proof. Next year, you can divide it and have even more plants. Good luck.

I planted some pampas grass last spring and it grew all summer now this year it hasn't grown back, what would be some reasons a pampas grass wouldn't come back? I see tons of these plants in my neighbors yards and I know they grow here very well, in fact one neighbors is already half grown, they did cut it back the brown stuff and so did I.

RR