Cuttings - with no roots - should not be in the same mix as your plants; they should ideally be in a few inches of pure perlite or 30/70 soil-perlite mix. And they should not get watered until they are showing leaves. I realize you are in a very dry climate so you could mist them and the rocks in a saucer underneath it are fine, as long as the cuttings do not sit in wet soil.
Once they are showing leaf growth you may assume they are rooted and can pot them up in the same mix as your plants.
I am very averse to using any kind of bloom booster (it is designed for annuals, not flowering trees) but I know many people use it.
It would be fine to repot the plants at this stage, and when you do you may remove (as in cut off) some of the larger leaves to prevent dehydration. They will soon put new leaves on if they are happy.
