PROBLEM TO BE SOLVED: To provide a planting base that can uniformly spread moisture all over the planting base even when water is supplied to a part thereof and that is inexpensive.SOLUTION: The planting base comprises at least a bottom portion and can place a cultivation material on the bottom portion, where: the bottom portion has a plurality of recesses for water storage or retention, capable of storing or retaining moisture, and a plural kinds of communication parts for communicating the recesses for water storage or retention with one another to allow water to flow through and the planting base is molded by vacuum forming as a whole.COPYRIGHT: (C)2014,JPO&INPIT【課題】一部分に給水されたとしても万遍なく植栽基盤全体に水分を行き渡らすことができ、且つ安価な植栽基盤を提供する。【解決手段】少なくとも底部を有し、底部上に育成材を載置可能な植栽基盤において、底部は、水分を貯留又は保持可能な複数の貯水又は保水用凹部と、貯水又は保水用凹部相互を通水可能に連通する複数種類の連通部を有し、全体として真空成形で成形してなる植栽基盤。【選択図】図1