I planted about 60 or so 2ft apart and I am wondering if I should have planted them slightly closer? I am really having a problem w weeds taking over and of course until these get to be mature clumps, they won't hold down the weeds. But I'm wondering if I should have scrunched them in more? Most of them are large varieties, Photon Torpedo, Wispy Rarys, Cleo ect.