Brewing recipes
Fool's Juice (Jester Cap) - Bought from Kapua in Native Village @ The Sword Coast
Sharpeye Paste - Bought from Di Silva in the inn @ Caldera
Swordthorn Essence - Bought from Emma @ Antigua
So far I've found these plants:
Hero's Crown
*Crystal Cave on first Island
*Sword Coast near Monkey Tower (opposite of the cave you are asked to check out when you go with steelbeard to the natives camp)
*Sword Coast - Hill overlooking Earth Temple
*Antigua - Northwestern Island
*Maracai Bay - Climb up some cliffs east of Angus
*Thieves Island - Northernmost point, on a cliff.
*Antigua - Near Garcia's Treasure
Swordthorn
*Sword Coast - unknown
*Antigua - On the right, after exiting the caves outside of Harbour.
*Thieves Island - Slayne's Cave
*Thieves Island - Northernmost cave
*Isle of the Dead - Arena