FyI . there are 5 pet battle master quests that when complete you turn them in from your quest log.. do them on main/alt, then turn them in on your panda. at lvl 1 you would be 90 exp per and lvl 89 you would get 200k exp per(1mill a day). at your lvl you would get roughly 10k exp per(50k a day). takes like 10 mins to do em all. you probably could have been lvl 90 by now with as much time as u spent pickin herbs..
westfall, redridge, darkshore, southern stv, and northern barrens. might be more, them are the 5 ive noticed that turn in from quest log from anywhere
If this is true, that would be freakin awesome. Granted I'd probably herb in my off time still, as I need something to do while I watch my TV shows. I always thought they were turned in at the pet masters.