I am planning on getting carpets roses to plant infront of my 2 flouribunda roses in my yard. I didn't think this would be a problem, but then then I read "avoid planting large shrub("that have large root systems") that will deplete the soil of the resources that roses need to be healthy." Granted a carpetrose is not large*usually no more than 3ft), is this a bad idea? Would I be able to plant them infront of the larger roses if I plant so many feet infront of them to give adequate space(hiw much would that be)?