Tammy Blanchard and Jonathan Graff  Photo: Emilio Madrid-Kuser Everyone's favorite mutating carnivorous plant is in bloom again. This time back Off Broadway where it belongs and where it began in 1982 and remained potted for 2,209 performances. If the 2003 Broadway production failed to capture a large enough following,  it didn't dissuade the current team (and there are plenty of them) producers and collaborat…