To become an Apprentice Herbalist you need to find a Herbalism trainer. The guide will help you to reach level 70 a lot faster. I recommend trying Zygor's 1-70 Leveling Guide if you are still leveling your character or you just started a new alt. But keep in mind, this guide is made to level your profession as fast as possible, so sometimes the herbs you will farm might not be the best for Alchemy. If you are also leveling Alchemy together with herbalism, make sure to check out my TBC Classic Alchemy leveling guide. This TBC Classic Herbalism leveling guide will show you the fastest way to level Herbalism from 1 to 375 in Burning Crusade Classic.