I was looking at a reno of our back yard (for starters) to a 100% Elite KBG (blueberry, midnight and prosperity) - I just have a lot of concerns about weeds as we need to bring in some topsoil for low areas and we have some quackgrass areas (I will surely Roundup this before planting) and was wondering if I were to add some annual rye to the mix. This would be in hopes that this grass would grow quickly and help the KBG establish? Or am I thinking this wrong, that the rye would cause problems for the KBG to establish? I guess the tricky part is the first mow because I'd probably be stomping on the seedlings...

Thoughts?