[3][4] She learned to weave kete whiri (woven baskets) at Paranui Marae, Himatangi, in the 1980s,[2] and credits her grandmother for inspiring her style and techniques, including the use of unusual materials and contemporary designs.
[3][5] In 1994 she created tukutuku for Taumata o Te Rā marae and kōwhaiwhai for her whare tūpuna (ancestral house).
[6] After graduating from Te Wānanga o Raukawa with a bachelor's degree of design and art in 2000,[6] Devonshire taught weaving there for 20 years.
[2][7] From 23 September to 24 December 2005 she and fellow tutor Elaine Bevan were in the United States as part of the Eternal Thread exhibition hosted by the Hallie Ford Museum of Art.
[8] In 2020 Devonshire and Sonia Snowden were appointed as the first Ngā Aho Whenua Weavers in residence at the Toi Matarau Gallery as part of the Māoriland Film Hub in Ōtaki.