I'm looking to buy poison++ but can't find any locations where herblorists hangout. Any suggestions.

Your best bet is probably to look or post on the official RS forums.

In-game, there would be world 2, east of the east fally bank. You just shout your name saying what you buy, you should find a seller.

Aye, forums or places like Falador and Yanille where people tend to train Herblore.

 

 

 

 

 

 

 

They're about 7-8k per potion, not to expensive.

 

 

 

 

 

 

 

Or, you could maybe buy the weapon poisoned if its like a Dragon Dagger.