I made this Lichbloom and Icethorn farming guide to help out players who want to farm the herbs instead of buying them from the Auction House. These two herbs can be found in the same zones, so I combined the Lichbloom farming guide with the Icethorn farming guide. It's recommended to have Herbalism 425 before you start farming, so you won't get any herb fragments. Below you will find a list of places where I could farm the most Lichbloom and Icethorn.
Lichbloom and Icethorn
The best zone for farming Lichbloom and Icethorn is Storm Peaks. Due to the nature of the zone, effective farming is practically impossible without a flying mount. Therefore it's not desirable to farm these herbs without a flying mount.
I included two farming routes, I prefer the first one, but if someone else is farming in the zone, you might want to follow the larger farming route. (it would be better to just go to Icecrown)
Icecrown is a great alternative if someone else is farming in Strom Peaks.