Because Mercedes McCambridge did 25 CBSRMT episodes, it's inevitable that some of her characters will have the same sounding voice or similar mannerisms.  Though I enjoyed this episode, it was difficult not to think of another episode where she talked to her plants who seemed alive and responsive to her.  They even used the same sound effect for the plants' communication with her as was used in this episode for the "living" bedroom - the feminine sing-song moaning.  Take a listen if you haven't heard it before:  Episode 0082 "All Living Things Must Die".  If you enjoy Mercedes McCambridge sounding a little "off the beam", you'll enjoy that one, too.  A good example in episode 0082 is around the 28 minute mark, though her "plant whispering" is scattered throughout the program.