Radio and theatre Plumb started her acting career in 1930, with the
Gwen Meredith Chelsea drama club. She had her first well-known role as Emmie Lawson on
The Lawsons and later in the longest-running Australian radio serial
Blue Hills, She was very active in the radio industry early in her career and would work in this sector as a producer, scriptwriter and performer Plumb had a long career in the theatre, starting from 1930 and was a cast member of the debut season of the
Old Tote Theatre Company, and once quipped that she "played in just about every form of public entertainment
except the circus".
Television Plumb appeared in some early Australian drama such as
Adventure Unlimited. She is probably best remembered for the Australian soap opera
The Young Doctors as Ada Simmonds for its entire November 1976 – March 1983 run. She released a cook book, ''What's
Cooking with Ada,
under her character’s name in 1980.
Other notable roles were in the mini-series The Harp in the South and Poor Man's Orange in the mid-1980s. She acted in Neighbours as Mrs. Forbes in 1985, appearing in scenes opposite Alan Dale, with whom she had starred in The Young Doctors''. She later played the key role of in the serial
Richmond Hill as Mum Foote in 1988. Having agreed to act in the planned new series, Plumb was offered, and played in the pilot of another proposed series
Home and Away as Doris Peters. When
Home and Away also went into production, Plumb opted to honour her earlier agreement to do
Richmond Hill. The role of Mum Foote had been specially written with her in mind by show creator,
Reg Watson.
Richmond Hill had a run of just 12 months, and Plumb stayed with the series for all of that time. In 1995, Plumb returned to
Home and Away for a number of episodes, playing a different character. Plumb also appeared in the mini-series
Stark, based on
Ben Elton's
novel of the same name. ==Personal life==