I have a bunch of Sand Cord grass that is out of control with growth. Its hanging over parking spaces and too far onto sidewalks. I have no experience with trimming it. My one guy said you just hack it back, but I'm worried as I have seen grass die this way. Also if thats the way to do it can they be trimmed this time of year? Its very hot and dry. I have a feeling this stuff grows fast so maybe I will be trimming a lot throughout the season.