The Secret Garden is a bonus room that is unlocked by owning the Romantic Garden Secret Entrance, which is awarded for collecting all insects in the Garden Pals Collection. There are three garden plots in this room.
Like all secret rooms, a player can only have one room of this type. Selling the entrance item will cause you to lose your room, so do not sell / recycle it!
Also like other secret rooms, you cannot apply wallpaper or floors to this room. However, you can decorate it with other items. This room is smaller than the regular rooms in your house.
This room will be hidden from visiting friends as long as the Romantic Garden Secret Entrance object is in your inventory. Placing the object in a room in your house will allow friends to see the room.