Herbalism gold/ghost mushroom farming with cross-server

[Mollymus]

So, ghost mushroom is used for invisibility potions which apparently are pretty good for challenge modes. Thus, they are likely to sell better than usual. So what I suggest you do as a herbalist, is you go to this cave, fungal rock, in Un'Goro Crater:
http://www.arenandb.org/ss3.png

And farm them. There's about 20 spawns inside the cave, and each clearing the full cave only takes a couple of minutes. When you have cleared it, ask someone from another realm to invite you and clear the cave again on a new server.

Currently on my server, there's not a single ghost mushroom and not a single Invisibility potion left on AH, so the demand is likely to be high on your server as well!

Good luck!

Edit:
My friend's been doing this for an hour or so and just told me that he's earned 8k gold since.

A clarification. These invites must be done cross battlegroup because otherwise the normal crossrealmzones would make sure that nothing changes. So make sure you get invited from another BG.

[Meumenino]

You just need to be invited and the mushrooms will just respawn?
Explain me please how to get to another realm if it isnt just get an invite.

[Mollymus]

There's usually not anyone farming this cave, so when you go to a new server it will be filled with herbs again. The herbs spawn on each server, and you can collect them all on each server.

In order to go to another server(another version of the zone), you must be invited by someone who is not from your battlegroup. Ie, if you play in the battlegroup cyclone, you can not be invited by someone else on cyclone.