I quickly looked over your character and i noticed that you're sitting at an awkward HBP.
It's pretty commonly accepted that the only two HBPs you should aim for are 3039 (or arguably 3049 since its so close and you get another tick of tranq) or
13163 haste rating, as they give you additional ticks of rejuv. Anything in between is pretty much a waste of haste, where stats could be more useful spent differently.
i.e: get reforged into the spirit that you're lacking and/or super op mastery to boost ALL you heals.
It's either an all or nothing when you venture for that major 13163, and the only difference between them essentially is how fluid they heal. imo a 3093haste/mastery build is a tad more "clunky" and the 13163 is smoother in HoTs ticking. Theres some debate between gemming straight haste to reach those points, but unless memory fails me, you still won't be able to hit 13163 with anything less than "BiS" haste gear from Reg SoO. so best to stick with low haste, high mastery & spirit.
I agree with Xar's idea of mushroom minor glyph. just toss it down and forget about it essentially. ezpz free healing. also, get rid of that Blooming glyph. there are scarcely times in SoO where letting that drop is appropriate and the CGDs it takes to rebuild a full LB are time spent you could be rejuving other things. since you're getting into LFR more, i'd recommend the WG glyph. it also puts it into line with SM & potentially SotF.
As for talents, if you're gonna stick with treants just make sure you always have at least ONE active otherwise its a waste of possible free healing. since they're off the GCD, it shouldn't be hard to have that going for ya. Other than that, you might try switching to SotF for more bursty healing. A strong mastery build with a SotF'd WG is pretty op in LFR when other healers get derptacular.
AAAAAND yeah. see how that does ya!
TL;DR 3093 haste then reforge into mastery/spirit, WG glyph over blooming, mushroom minor glyph.