Abstract: A collapsible flower vase assembly for use in holding and preserving a plurality of long-stemmed flowers in an entrapped volume of water. The assembly includes an elongate and sleeve shaped body which defines a polygonal shape in cross section. Fold lines extend along a longitudinal length of the body and the body includes a first open end and second open end. A cork attachment corresponds in shape to the cross sectional shape of the sleeve body and is biasingly engaged against the second open end of the sleeve body so that the interior of the body is water tight and the attachment provides a pedestal base for the arraying the body in an upwardly extending fashion. The sleeve shaped body is further capable of being outwardly expanded from a first folded position to a second unfolded position prior to the cork attachment being releasably secured.