The source of My Plants can be one of three options: Local and Manage360:
Local ‐ Local means you can create your ‘local’ list (database) of plants that can be used for labeling your drawing. This local list is built and maintained through the Plant List Editor, a simple application that is accessed through the Plant Labeling Panel. When connected to the local list, all the plants in the list you search for will appear in the label panel. This is also referred to as operating in Standalone mode.
Manage360 ‐ If you use Manage360 (Manage Website) for generating quotes, you can build a list (database) of plants in that application to label with on your design. When connected to this online database you can search for plants with the benefit of being able to choose plant sizes and suppliers.