Some will die, some will be stunted, some might get huge. But with that few to work with I don't think spacing is that big a deal. How long do you plan to leave them in the same spot? Trying to dig out daylilies any closer than 8 inches I think would be a problem, I space mine a foot apart and after a couple of years they are pretty tight. I do think I tend to space my plants further apart more than most, but sometimes I wish they were further apart.