To provide a water supply material for cut flower, which is excellent in water supply ability to a cut flower in vertical transport of a cut flower, and in lateral transport of a cut flower in which, the cut flower can be handled easily and stacked, transport cost and preservation cost become lower, and which has no risk of water leakage.SOLUTION: There is provided a water supply material for cut flower formed of a water absorptive polymer in which, a time required for gelation of water which is 100 times of self weight (service water (water temperature:18°C)) is 3 minutes or longer and 60 minutes or shorter, the water supply material is preferably formed of a water absorptive polymer and a pulp, and is formed into a sheet state.SELECTED DRAWING: None【課題】切り花を縦輸送する場合はもちろんのこと、荷扱いが便利であり、段積みも行え、輸送費、保管費が安く付くなどの利点がある横輸送する場合であっても切り花への給水能に優れ、しかも水漏れの恐れがない切り花用給水材を提供すること。【解決手段】自重の１００倍の水（水道水（水温：１８℃））をゲル化させるのに要する時間が３分以上、６０分以下である吸水性ポリマーからなる切り花用給水材、好ましくは吸水性ポリマーとパルプからなり、シート状とした切り花用給水材。【選択図】 なし
