Hi, I overseeded a customers lawn about 3 weeks ago, and am wondering if it is safe to cut the grass. The seed contains perennial rye, fescue and blue grass. Now the rye grass is already about an inch tall, but the blue grass wont germinate till next spring. Will i suck the seed off the lawn if I mow it?? I have a walker with GHS if that makes any difference. Also how long does it take Fescue to germinate?? Thanks for any information! You guys are always a big help!