The aim of the Nordic Network for the Archaeology and Archaeobotany of Gardening (NTAA), as it was phrased those first days in Alnarp in the beginning of March 2010, is to: ”bring researchers together from different disciplines to discuss the history, archaeology, archaeobotany and cultivation of gardens and plants”. We had no idea, then, how widely appreciated this initiative would become. The fifth seminar in five years was held on Visingsö June 1-3, 2014 and the sixth seminar will take place (...) in Kristiansand, Norway, June 12-14, 2015. We are very pleased to be able to publish this report, Sources to the History of Gardening: Four Interdisciplinary Seminars 2010–2013, Arranged By the Nordic Network for the Archaeology and Archaeobotany of Gardening (NTAA), based on the first four themes and seminars, in total 26 articles. Most of them origins from one of the seminar contributions 2010, 2011, 2012 and 2013 respectively. However, the editorial group has taken the opportunity, with the aim of the network in mind, to add supplementing contributions on some subjects. The articles are arranged in four themes according to the themes of the seminars. The first theme Archaeological Sources to the History of Gardens and the Cultural Landscape is linked to the first seminar in Alnarp, Sweden, 2010 which had a focus on method, the important connections between archaeology and archaeobotany and the interesting progress within garden archaeology during the last decade. The second theme Cabbage Patches and Kitchen Gardens deals with the second seminar in Norrköping, Sweden, 2011. Its focus was on historical, cultural geographical, archaeological and archaeobotanical research concerning utility gardens or kitchen gardens as well as the concept ‘kålgård’ (cabbage patch or kale yard), its shape and content over time. The third theme Cultural and Garden plants: Under Ground, Above Ground, In Herbariums and Archives connects to the third seminar in Uppsala, Sweden, 2012. It focused on sources, source criticism and interdisciplinary research to gain knowledge on the history of garden cultivation and cultural plants. The articles discuss, among other things, herbariums, written sources, DNA and molecular markers, pollen analysis and georadar. The fourth theme for NTAA’s annual seminar was Cultural Relict Plants and was held on Bornholm, Denmark, 2013. The focus on the seminar was on research and conservation of cultural relict plants, that is cultural plants which have survived in the same place for a long time after the actual cultivation has ceased. We dedicate this report to Kjell Lundquist (1955-2011) who were one of the initiators to this network and we hope it will inspire continuous research and new methodological discussions. (shrink)