@cookies4kids I try and put them down 3-4 times a year. When I initially plant a daylily I add it to the hole and mix around; I put a big handful in there. Then I top dress with it as well. There has been some already added to the beds and tilled in if the bed has been emptied. After that I put it down in between the rows of daylilies. Just don't put it right up next to the fans.
So new plants a handful or two
Established plants I use about 20 lbs for a 30' bed but then I use a lot.
Really you can put it down as often as you feel it is needed. Once it is gone and you can no longer see it then you can put down more. This will vary depending on how much you water, how much it rains, or how fast the worms eat it up. Once I put it down I water it really good so the pellets break down faster.
Opinions will vary on this about putting it down in July but I have and do and have never had a problem doing so.