The Advanced Plant Habitat (APH) is the largest, fully automated plant growth research facility that is used to conduct plant bioscience research on the International Space Station (ISS). It occupies the lower half of the EXpedite the PRocessing of Experiments to Space Station (EXPRESS) Rack and one powered International Sub-rack Interface Standard (ISIS) drawer, providing a fully enclosed, closed-loop plant life support system with an environmentally controlled growth chamber designed for conducting both fundamental and applied plant research during experiments extending up to 135 days. The system requires minimal crew involvement to install the science, add water, and other maintenance activities.