Hey fellow WoW players! Welcome to my blog and this article about farming Twilight Jasmine. There is no need to ever buy it on AH if you follow my guide. Quite the contrary, you can even farm it to sell on Auction House and earn lots of gold this way.
If you have hard time earning gold in WoW I recommend using this in-game add-on, called Zygor Guides. It really helps you with lots of aspects in the game, including Farming, Crafting, Gathering, Auction, Leveling, Professions and much more... Though, the add-on costs some money, but is well worth the price. They also have a FREE TRIAL you may want to try.
As by its name, Twilight Jasmine only grows in Twilight Highlands.
Just do swipes north and south of the river in the middle of the zone. Note that this herb is quite rare, actually the rarest of the herbs in Cataclysm expansion.