Mr_Subjunctive worked at a family-owned greenhouse / garden center in Iowa City, IA from Aug 2007 to May 2009. He still likes plants, especially tropical houseplants, and it's pretty obvious by this point that his interest in them will continue.
Mr_Subjunctive has 1061 plants at home (excluding cuttings, seeds, a terrarium, outdoor stuff, aquarium plants, etc.) as of 29 May 2012, which was the last day this number changed.
Mr_Subjunctive, when not tending plants, likes to unwind by talking with others about tending plants, visiting other locations in Eastern Iowa to find plants to tend, writing about the tending of plants, photographing previously-tended plants, appreciating plants tended by others, and talking about himself in the third person. He considers himself well-rounded.
Please note: other "Mr. Subjunctives" do exist on-line. After quietly resenting this situation for a year and a half, Mr. Subjunctive has resigned himself to the idea that his internet handle is not unique, and advises people to be suspicious of anyone calling him/rself "Mr. Subjunctive" who is not talking about plants, doesn't use footnotes, and has dodgy spelling or punctuation.