I always leave mine together when planting them. I have heard others say to do that. I never tried separating them. I have won some newer singles on the LA and it seems to take at least one season for them to get going to even bloom.
This is the 3rd year for a SF of BLACK PARROT and it looks like it is still a SF
Hopefully, it will bloom this summer! Anyone growing that one?
Java, it looks like you have been given good advise above. I also have mixed beds of perennials but in my daylily only beds, I try to group them by size or shapes. Minis in the front, tall spidery ones together and so on. I have seen like colors planted together but I prefer to see mixed ones together.
I also did a planting last Fall of Bachman plants together. Or you can go with a themed bed. Have fun!