Most plants spend their entire existence as part of an ecosystem and yet little is known about plant-plant interactions. In order to more accurately model plant field phenotypes we must study these interactions. Earlier studies of the response of A. thaliana to carbon dioxide stress, as well as the demonstrated ability of plants to recognize kin from non-kin neighbors, led us to hypothesize that plants can use their ability to recognize kin to form a root network that benefits the population during times of stress. We observed that A. thaliana plants display different phenotypes when their roots are in contact with neighboring roots, in comparison to isolated roots, when subject to water stress. These touching plants show greater root and leaf area, indicating there is some benefit to being connected. Is the increase in size due to competition for space or is it an indicator of increased health in the community?