Abstract: A rotatable decorative tree assembly provides a decorative holiday tree that will be rotated by wind. The assembly includes a base and a receiver coupled to the base. A post has a lower end inserted into the receiver wherein the post extends upwardly from the base. The post is rotatable relative to the base. A plurality of collars is coupled to the post positioned in spaced relationship along a length of the post. A plurality of vanes is provided. Each vane is shaped to resemble a tree limb and each vane is couplable to an associated one of the collars.