PROBLEM TO BE SOLVED: To solve the problems in which a conventional kitchen garden in which seeds of rapidly growing species and seeds of slowly growing species are separately sowed becomes full of weeds till the growth of the slowly growing species when the weeds growing at the vicinity are not weeded diligently because the growth of the weeds is rapid.SOLUTION: The mixed seeds enable radish of the rapidly growing species (2) to be planted instead of the weeds to grow okra of the slowly growing species (3), and to be harvested instead of the weeds. A sheet (4) can be made on a desk to save the operation in an unnatural posture.