This is a free WoW Gold Farming Guide on farming Primal Life, having Herbalism helps too.
In this guide, you will be farming on Talonsworn Forest-Ragers in Skettis. These mobs respawn quite fast, just go around the lake and back killing them all.
I kill them in around 2 minutes each and they drop around 3-5 Mote of Life each. I get around 10 Primal Life an hour by farming these mobs, I also get quite a few stacks of herbs like Dreaming Glory and Mana Thistles.