I like the plants so far, the blast one seems a bit pointless though.
That's pretty much it, the Scryer's Bloom and Healing blooms are really useful and you can definitely play around them but the blast blooms seem very situational and don't really seem helpful at all times like the other's.
I don't really want them removed or anything but i think that riot can come up with something else for them to do maybe we should start posting our ideas or discussing them in a thread such as this one.