So yeah.. Whenever I TRY to herb in Twilight Highlands, the herbcount per hour is absolutely awful. I get a maximum of 5 stacks per hour, if not less.. I havent done the quests there yet, does that affect the number of herbs available for gathering? 

It does. A lot. The phasing in TH is awful.
Next to that; the mobs in TH are awful and will make you die a lot or miss nodes a lot.
Simple solution: Don't go TH, go Uldum instead. Much better nodes/hour rate.
So yeah.. Whenever I TRY to herb in Twilight Highlands, the herbcount per hour is absolutely awful. I get a maximum of 5 stacks per hour, if not less.. I havent done the quests there yet, does that affect the number of herbs available for gathering?![]()