[steve]

I also tend to use folders for areas of responsibility. I would create two separate projects with the second one being on hold. One thing that I haven't done, but seems like a good idea is to have the last task of the first project be: "activate plant flower project." You can even have a link to that project in the note field.

From the second project use the contextual menu and "copy link" and then post into the first project in the chain.