Go into one of your original characters, time travel to 5:50AM and cover where she is normally going with a pwp or a pattern..wait until 6am in-game time..each time she keeps spawning on an area you dont like cover it with a path and you will finally get her where you want her..
keep doing this until you get your desired result
I would put paths around the entire area you want her to be in so she will fit into that exact spot....meaning you should move the flowers out of the way and put a pattern instead