Can anyone help with locating lots of earthroot?  PLEASE

The obvious place being AH....but lot of it littered around Dun Morgh and even Westfall.

I find the mine area in Dun Morgh is pretty littered with it on the outside.  Usually at least four buds of it in there when I went.

All around terredrassi

i found it in the hills in tristfal glades and on the north shore in tristfal glades

all starting areas (mulgore, dun morogh, elwynn forest, etc...) are places to find earthroot, silverleaf and peacebloom from what i have noticed, but you can still find some in the next level questing areas.  and earthroot in particular is found mostly around hills and mountains and ridges like that.

Darkshore, Auberdine, south along the foot of the mountains.  Usually on or near rocks/mountains, among other places.