A soil moisture indicator contains a water-absorbing material and a color-changing part. A body part is formed and hollow by a material through which water does not pass, and has a water-absorbing opening proximate one end and a transpiration opening positioned near the other end. A display part is connected to the other end of the body part and allows an inner hollow portion to be viewed. An upper-end part that constitutes the end portion of the display part can be removed from and connected to the display part at the end portion on the opposite side to the end portion connected to the body. There is a change in color tone indication between a water-absorbed state and a dry state.