Herbalism 1-375 Profession Guide
This is a good Herbalism Guide. Power leveling herbalism will actually MAKE YOU MONEY, instead of cost you tons of gold like power leveling crafting professions. Below are some tips how to raise your herbalism 375 fast.
If you're going to power level herbalism in a short period of time, I'd recommend you get an epic ground mount first. You'll find trainers in every major city to learn herbalism. Finally, make sure that you have your 'Find Herbs' tool activated by left clicking on the hour glass connected to your minimap:
Find Herb
I also recommend you use 'Click to Move' in your interface option. It will let you click an herb off in the distance and it will send your character there and have him/her loot on arrival. Very convenient for looting. You can even click to loot an herb while mounted, and you will be auto unmounted on arrival. Finally, make sure you have the Gatherer Addon installed and setup properly.
Levels 1-75
Once you're ready to go, head to any of the starting zones like Durator picking up Silverleaf, Peacebloom, Earthroot and Mageroyal until your herbalism skill is 75. This use to take less than an hour in Durator to get to 75.
Durotar
Mulgore
Teldrassil
Tirisfal Glades
Ewlynn Forest
Levels 75-150
Once you reach 70 or 75, you can head to Darnassus and train Herbalism so you can exceed level 75.
Then head to northern Barrens and run the following route until you're level 100, then head to the southern Barrens.
Southern Barrens will get you to level 150. Levels 135-150 will be a bit slow, feel free to run around Stonetalon Mountain or eastern Hillsbrad Foothills if you want new scenery.
Barrens
Westfall
Levels 150-170
Head to the wetlands and level to 170 by collecting Briarthorn, Kingsblood and Liferoot.
Running the route from the Harbor to Arathi Highlands with zig-zags should get you the 20 levels you need.
Wetlands Herbalism
Levels 170-225
Arathi Highlands is an awesome place to level herbalism once you get to 170.
You'll spend a lot of time there gathering Wild Steelbloom, Bruiseweed, Fadeleaf, Goldthorn, Liferoot and Khadgar's Whiskers. Stay there until you are level 225,
and don't leave earlier because you'll have a rough time finding a more efficient place to level.
Arathi Highlands Herbalism
Fly to Booty Bay and train herbalism to level 300. Flora Silverwind can be found below and to the east of the Alliance gryphon master.
Levels 225-275
Head to Feralas and start gathering Goldthorn and Liferoot until you're 230, then you'll be able to start collecting all the Sungrass you keep running by. Collect Goldthorn, Liferoot, Sungrass, Purple Lotus, and Golden Samsan until you are 275. You can see by this map where most of the herbs were for me when I ran through.
Feralas Herbalism
Levels 275-300
Finally, we'll head to the plaguelands to level to 300 before heading to the Outlands. Start in Western and then head east. You will run by a lot of plaguebloom, just mark it with gatherer by right clicking it so it says 'You must be level 285 to..' and keep going. Once you hit 285 turn around and run by all the plaguebloom you saw and you should hit 300 before returning to Chillwind.
Western Plaguelands Herbalism
300-375
You can continue running around Felwood or the plaguelands picking until your herbalism skill reaches 330 or 340. Since you'll need to go to Honor Hold or Thrallmar for level 300 training, you mid as well start your 300+ skill ups in Hellfire Penninsula. Once you're 340 you can go pretty much anywhere in Outlands to get to 375, pick an area where you can grind something else like Sunfury Signets in Netherstorm etc. You may also want to consider selecting the herb you want to farm (based on what you want to make) and approach the last 35 levels that way.