This resulted in the Mahood family having a focus on growing plants and Fannie's grandmother bequeathed her a plot of land when she was seven to set up a garden.

[1] Heath also kept up other fields and she sent data to publications, including bird migration patterns in the plains to the official biological survey office in Washington D.C.

[2] The June meeting in 1922 was hosted at the Heath farm, where Fannie gave a presentation on the topic of "Protection and Beautification of the Home Grounds" and exhibited her methods of how to successfully propagate multiple flowers from different habitats.

[4] During the November 1923 meeting of the society, the National Botanical Garden and Herbarium was established in Grand Forks and Fannie donated 250 specimens to its creation.

The 1933 "Century of Progress" Chicago World's Fair had an exhibit on her and her accomplishments, including a descriptive plaque calling her the "flower lady of North Dakota".

[7] A collection of her papers, writings, notes, photographs, and newspaper clippings was created at the University of North Dakota after donations in 2000 by her daughter, Pearl Heath Frazier.