We have 1/3 acre and I have about 750 daylilies, but probably more than half of them are in pots on tables because I want to use them for hybridizing and I need to move them to shade or even indoors when I make crosses and our weather starts warming up. I have so many in the ground that I end up not being able to use as pod parents because of our temps, and when it's really hot I have a hard time even getting pollen.