The growing plant is a fascinating system involving multiple fields. Biologically, it is a multi-cellular system controlled by complex bio-chemical networks. Physically, it is an example of an "active solid" – an extended solid system, whose element (cells) are active, performing mechanical work to drive the evolving geometry. Computationally, it acts as a distributed system, processing a multitude of local inputs into a coordinated developmental response. The goal of this meeting is to provide a rare opportunity to bring together researchers from these different but complementary disciplines, and study the plant as a living, information-processing organism, which uses physical laws and biological mechanisms to alter its own shape, and negotiate its environment.