I've had a horrible time growing grass on the boulevard area next to a tarred road ever since our yard was dug up to widen our street. The City paid to have everybody's yard damage repaired by putting down sod which turned out to be 99% weeds! The rest of my yard is lush, green Kentucky Blue Grass and it butts up against the 6-8 foot problem area. Last spring, I raked, removing all of the dead grass/weeds, and then tilled up the area, incorporating topsoil as well as some Milorganite. I then planted Kentucky Blue Grass and mixed it with some annual rye grass seed as recommended by the landscape company. I kept it watered, along with the rest of my yard, all last summer. I had a COMPLETELY gorgeous lawn by July, just in time for a 4th of July party that I was hosting, and I was thrilled! This year, not so much. Though I see the Kentucky Blue Grass growing, it's certainly not lush, but rather sparse in the great majority of the area, despite watering regularly & putting some fertilizer down a few weeks ago. My question is, can I mix the Kentucky Blue Grass with a PERENNIAL rye grass without the rye grass overtaking the blue grass? I wanted to put it down now so that it will hopefully be well-established by the end of June at the latest. Thank you for any advice & recommendations that you can provide me with, or are my growth expectations unreasonable?