Hey there! I usually keep my stuff in the druid forum, but I'm a bit more excited about this one .
Typically, if you want to solo Razorgore (first boss of BWL), you'd need to use the balcony glitch to reset the fight.
Fortunately, this isn't a necessity for druids!
^ if that's blocked, http://www.youtube.com/watch?v=OSQEOr8EN7I should work.
Glyph of Regrowth is the key here. It allows you to continue building threat on new adds while controlling Razor. Otherwise, all you really do is tank the adds while staying below 50% as best as possible (and, of course, not dying).
Tbh, I'd still recommend grouping for this guy. It's a fairly challenging fight, with a bit of luck thrown in with when he decides to stomp/volley/conflag. I'm just happy to know I can do the whole place, without any form of glitch!