To provide a vase device for flower arrangement capable of retaining tribute flowers as fresh flowers for a long period of time.

This vase device for fresh flowers is provided with a liquid fertilizer tank part 3 mounted on a flower holder stand 1 or a flower holder hole 2 of a flower stand of a memorial marker, a flower holder vase part 5 having its vase upper hole connected to the center of a lower face wall and fitted in the flower holder hole, a flower holder cylinder part 7 having its upper end cylindrical port connected to the liquid fertilizer tank part 3 and its lower end cylindrical port 7b connected to the vase upper port 5a of the holder vase part, a liquid fertilizer outlet 8 provided in the lower end cylindrical port 7b and letting the liquid fertilizer in the liquid fertilizer tank part flow into the cylinder till the last, an air inlet 9 provided in a middle belly part of the flower holder cylinder part 7 falling under its upper part and letting the air flow inside the liquid fertilizer tank, and a liquid fertilizer inlet 10 disposed in a position in the upper face wall in the liquid fertilizer tank part and closed by an opening/closing lid 11. In using, the liquid fertilizer is poured from the liquid fertilizer inlet 10 and the upper end cylindrical port 7a of the flower holder cylinder part to the liquid fertilizer tank till filling its inside and further filling the upper end cylindrical port.