A collapsible vase has a sleeve having an open state in which at least one item can be placed in the sleeve and a flattened state for storage during non-use of the vase. The sleeve has a flap at one end of each side panel of the sleeve. The vase also has a base with slots arranged to securely receive respective flaps when the sleeve is in its open state, whereby the sleeve is retained by the base in a substantially upright position.