I've seen a few videos about this topic, but, I'm still unsure. Can you consistently farm inside your garrison? eg: say I wanted to farm for 4 hours continuously, are there enough nodes and herbs in our mine -, or if you do want to take advantage of high herb prices at launch, and dual gather, would these nodes need to farmed in the Open World?
Which poses another question, if you did need to farm in the open world, would there much point around launch if you are on an extremely busy server?
Cheers!