The invention relates to a plant illumination chamber, having at least one inner side, made with a reflective material, and an illumination device, wherein the illumination device has a main body and at least two lighting means. The problem addressed by the invention is that of creating a plant illumination chamber in which the irradiation characteristics of the illumination device in the plant illumination chamber can be further adapted with low work effort and at low material cost. It should further be possible to use the illumination device universally for plant illumination chambers of different sizes. The problem is solved in that each of these lighting means (5) can be displaced on a retaining element (7) of the main body (6) and can be fixed in a usage position with an attachment device (8), and in that the lighting means (5) can be displaced with respect to the inner side (3) and/or with respect to each other.
