CGM aims to be a functional, easy-to-use web-based card game/management app. At this time there is OCTGN and a few other pay-to-use alternatives that are available, and OCTGN is the most familiar to me (for playing Game of Thrones and Magic). There is no functionality that OCTGN (or any card management app for that matter) has that couldn't be available from a web-based app.
To log/share/analyze/optimize/simulate garden activity
An online database and cross-platform, game-like client where gardeners/farmers (small or large scale) can log their actions and measurements (such as weather, yield, current plant size).
Any user can then play it back visually, or play with the data and see a simulation inferred from the knowledge database, or calculate an optimal design within given constraints, inferred from the knowledge available at that time.
This is both a tool for playing, in order to entertain and inspire...