PROBLEM TO BE SOLVED: To provide a lightweight, air-permeable flowerpot made of cork, intended for flowering plant, excellent in decorativeness and highly biodegradable in soil. SOLUTION: This flowerpot A is obtained by mixing cork granules 1 with a biodegradable adhesive 2 followed by molding the mixture. Accordingly, when embedded in soil, the flowerpot A is biodegraded in its early stages and assimilated into soil.