Hi all, thanks for the comments.
I had a chance of trying out Spring Blossoms on last night's raid (we cleared EN and did Nythendra Hc after).
My healing throughput felt better, mostly because I got more used to the fights. Spring Blossoms accounted for only 3-4% of my healing, whereas Efflorescence was my 4th best heal with around 7-8%.
Still, the rotation felt a lot better. I definitely feel Germination isn't made for raids (especially with more than 10 people), as it simply consumes too much GCD's and time overall, not to mention mana.
I'm left wondering whether Inner Peace might be better in progress runs though. Every time I use Tranq, It feels like I'm saving the raid from certain death. Granted, my raiding team isn't the best at avoiding damage
THis has been a great discussion really. Thanks all for the help!