A seed is placed in a receptacle filled with soil to grow into a plant. The plant is transplanted when it has reached a certain size and it is then desirable to be able to relocate the plant together with a coherent lump of soil. This is difficult to achieve, but the present invention makes it possible by providing a conical lump of soil that is formed in a depression with a bottom. When the plant has grown sufficiently large so that a root system has been formed, the bottom of the depression need only be upwardly displaced for a firm conical lump of soil with a plant to be obtained, which is easy to transplant.
