1. Container for plants intended to contain the substrate (2) or a ground floor (3), is configured from a body (4) hollow, plant configuration variable open an upper opening (5), it is characterized in that the lower base (6) of the body (4) is an independent part thereof which engages the bottom of this body (4) by means of releasable connection allowing to have said lower base (6) at will and away from the body (4). 2. A plant container according to claim 1, wherein the upper opening (5) of the body (4) has a dimension at least equal to or greater than the bottom to the lower base is coupled (6), so , which being integrally joined to a base larger surface, the center of gravity of said assembly body (4) more base (6) it is located below half its height (h). 3. A plant container according to claim 1 or 2, characterized in that the lower base (6) is of the same plan configuration that the body (4). 4. A plant container according to claim 1 or 2, characterized in that the lower base (6) is of a different plan configuration that the body (4). 5. A plant container according to any of claims 1-4, characterized in that the lower base (6) has a dimension larger than the lower body (4) of the container and defines a perimetric wing (7) forming a reservoir around the body (4) adapted to collect excess water irrigation. 6. A plant container according to claim 5, characterized in that at the lower end of the body (4) of the container the existence of one or more side holes (8) through which excess water out irrigation and has contemplated optionally a favorable peak discharge of said water. 6. A plant container according to claim 5, characterized in that at the lower end of the body (4) of the container the existence of one or more side holes (8) through which excess water out irrigation and has contemplated optionally a favorable peak discharge of said water.
