[1][2] Her mother's illness coupled with the economic depression which existed in Denmark after World War I, prompted Vilhelm to bring the family to Central America.

[4] After moving about the country several times, the family finally settled in Managua, where Vilhelm owned and operated a restaurant known as La Casa Dinamarca ("The Denmark House").

[2] In 1943, Grøn won the Rubén Darío Art Prize, for her work Amo Muerto, which was then exhibited at the National Palace of Culture.

[1][4] She studied Classic Arts and Architecture[5] and in 1944, exhibited El Puntigado, which received notice in the Mexican press and secured her a scholarship at Columbia University in New York City.

Her initial works were realistic and she strove for perfection, but she was influenced by the Romanian modernist Constantin Brâncuși, which led her to shift to more stylized forms.

[9] That same year, Grøn carved a stone head of Darío clothed in a Carthusian habit, titling it La Cartuja, in reference to the poet's 1913 work on the same theme.

[2] In 1962 to commemorate the 350th anniversary of the indigenous revolt against the Spanish conquistador Gil González Dávila, Grøn sculpted an image of Cacique Diriangén to depict his courage and resistance.

[2] Some of her most known paintings include: Muchacha en la hamaca (Girl in a hammock), Cándida, Desnudo (The nude), and Llanto después del desastre (Tears after the disaster), which was a reference to the 1972 Nicaraguan earthquake.

[1] Numerous sculptures by Grøn adorn public places in Nicaragua, such as El Relevo, (The Relay) which is in front of the post office of Managua;[10][11] a monument to Andrés Castro Estrada, which was commissioned in 1956 by students and teachers, who had trained with the educator Miguel Ramírez Goyena [es]; a work on José Dolores Estrada which stands at the Masaya entrance to the Tiscapa Lagoon Natural Reserve;[10] a statue of Cacique Diriangén which adorns the park Las Piedrecitas in Managua; a sculpture of Rubén Darío, located at the Central Bank of Nicaragua, which is the most reproduced depiction of the author in the country;[11] and a bust of Darío completed in 1964, which adorns the National Theater bearing his name.