Actually I only cut one back this afternoon. We planted about 10 along our back road 6 years ago. We've never had much in the way of flowers and at the end of each season we're left with a bunch of dead grass. We've tried pulling our the dead grass hoping this will encourage new growth. This year I thought I'd try cutting one back and give it a good prune. I'm too chicken to do it to all of them. I wouldn't dream of burning them! We live on a island with NO fire department, so that is not an option. So, shoule I prune or just pull out the dead grass?