The invention is directed to a hanging device that can be removably installed between the boards of a support surface, such as siding boards. The hanger comprises a main body with first and second ends and a length therebetween. A flange is positioned at the first end of the main body, and functions to retain the hanger in between adjacent slats of a support surface. The second end of the main body includes a retention element that can be used to support the weight of an object, such as a hanging plant, artwork, shelving unit, and the like.