WoW Herbalism Guide 1-450

Instead of showing you what herbs are from which zone, it is recommended that you use an gathering Addon such as Gatherer, Quest Helper, Routes or Cartographer.

Some of them have a database built-in for known locations that you can share with your guild, import from others sources, etc.

Additionally, use this link to show all the herbs and where they can be found. Click on the Herb you are looking for and then the Gathered From tab to show where it grows.