A good and easy way to lvl your herbalism from 150->225:
Enter the instance Wailling Caverns. --> Go to the river (you have to face elite raptors on the way, but they should be soloable for a twink) where the nonelite crocolisks spawns, in the start of the instance. --> Find a liferoot, there's almost always spawning a liferoot there. IF not, go out of the instance and reset, enter again. --> Pull and kill 6 crocolisks near the liferoot --> Use the skinning glitch --> WIN!!!!
Reasons why this is good and easy way to lvl your herbalism:
1. You WONT get disturbed by other players.
2. You WONT get disturbed by respawns. (You might face the oozes, which should be soloable for a twink. I think it depends on where the liferoot spawns. But they didnt disturb me.)
3. You DONT have to face high lvl creeps, as you have to if you want to lvl the last herbalism lvls.
I did this from 150->225 without getting disturbed. Took me about 1 hour as i wasnt aware of Jaxels discovery.