Doesn't seem to be implemented for all girls, Lavander is max but can't evolve the second time
150 life gems for one item in the shop? yesh
Neither; in fact quite the opposite. It's a -second- evolution; not an alternative to the first. You have to evolve a unit (then level it to max again) before you can "bloom" it. And no, it isn't in for most girls; right now only the following units can be bloomed: Sakura, Cherry and Evening Primrose.
Have people already done this and can confirm that the blooming works properly? I have all materials for Sakura now but i need some kind of confirmation first.
I have 2nd evolved Evening Primrose, but she's still far from her max level, only 23/80.
one of my ally's cherry is already evolved lv 70.
Remember: allies are capped at the highest level of your characters. You won't see any 80s until you have one of your own.