The Grow Potion is a rare potion in Adopt Me! that can be found and purchased at the Sky Castle for 395.
Grow Potion allows the player to increase their size by one. This potion cannot be stacked. When a player attempts to drink another grow potion, it displays the message "Drinking another Grow Potion is too dangerous!"
The Grow Potion is only in the Sky Castle which can be reached via the Hot Air Balloon.