Bag culture can be defined simply as growing a plant out of a bag, the same way one would utilize a plant container or a pot. But bag culture can also be defined as a method for extending or expanding the volume of media available to a plant’s root structure. In the latter scenario, an already-potted plant would be placed inside or on top of a bag filled with new grow media. The original pot would have holes in the bottom or several slits made in it so that the roots can grow down and out of the container into the extended medium of the bag. Because of these aspects, container bags are a preferred method for many greenhouse and indoor growers looking to expand root zone volume.