Ida Amalia von Plomgren, known by the nickname Plom, was born in 1870 in Södermanland and grew up in upper-class circles but became interested in the women's cause and the social conditions of the time as a young woman. She came to dedicate her entire professional life to the Fredrika Bremer Association, where she was active in various positions for forty years.
She became Swedish champion in florist fencing in 1909 and was also vice chairman of Stockholm's Women's Fencing Club, which was founded in 1905 and was "eager for fencing as a female sport" but also "promoting a good and happy friendship among its members".
In addition to her involvement in these two associations, she was also involved in the New Idun Society and the Lyceum Club, where she got outlets for both administrative and literary talents. She wrote spex together with Annie Bergman and every year she wrote plays for the fencing club.
In 1934, she was awarded the Illis Quorum (Royal Medal awarded by the government to reward efforts for cultural, scientific and other public benefit purposes).