Abstract: A Christmas tree watering device for adding water to the water reservoir of a Christmas tree stand. A funnel-like opening for receiving water is disguised as a Christmas tree ornament. The disguised ornament is provided with a hinged section that opens to provide access to the hollow interior. The hinged section prevents debris from falling into the opening and serves to disguise the device. The interior of the disguised ornament communicates with a flexible tube to the reservoir located at the base of the tree. A warning mechanism to ensure that the reservoir is not filled to overflowing has a float that rises and falls with the water level in the reservoir, a bell, and a striker on the float arranged to contact the bell when the correct water level has been reached. The warning mechanism may be clipped to the lower end of the flexible tube or may be provided with a hook to hook over the side of the reservoir.