Below are Herbalism farming routes for Northrend. If you are looking for more information on gold making with herbalism please go to the guide here.
Borean Tundra
Contested ~ 68-72 ~ Goldclover, Firethorn, Tiger Lily
Howling Fjord
Contested ~ 68-72 ~ Goldclover, Tiger Lily
Dragonblight
Contested ~ 71-74 ~ Goldclover, Frozen Herb
Grizzly Hills
Contested ~ 73-75 ~ Tiger Lily
Zul’Drak
Contested ~ 74-77 ~ Frozen Herb
Sholazar Basin
Contested ~ 75-78 ~ Tiger Lily, Adder’s Tongue
Storm Peaks
Contested ~ 76-80 ~ Lichbloom, Icethorn
Icecrown
Contested ~ 77-80 ~ Lichbloom, Icethorn
Patch 3.0.3