I just learned (via yesterday's livestream) that you can drink multiple green growth potions for added effect. How many of these can stack?
I think five or six but I forget though I grew as big as the three story row homes in Novia Market, can test later as I've a nice stack of them
It maxes out at six and the height is nowhere near what I remember, either it's changed or I'm thinking of the other growth potion.
You can drink several "Green Growth" and several "Grotth" potions. During a fishing competition in HavenĀ“s Ridge, I think it was @Lebu even did a full show as a green Godzilla with the head of a Carp, swimming, jumping and stomping around on houses. After that I think the growth potions were limited to a maximum of 10 used simultaneously.