PROBLEM TO BE SOLVED: To provide an epochmaking method for supplying water to a cold-temperate lawn that exerts unprecedented action and effect. SOLUTION: In the method for supplying water to a cold-temperate lawn 1 such as bent grass and bluegrass, water 2 having an average particle diameter of 70-120μm is sprayed to an area A of water to be sprayed in which the cold-temperate lawn 1 is provided. COPYRIGHT: (C)2012,JPO&INPIT