Powell-Hughes was called up to the
Wales women's national rugby union team for the
2010 Women's Rugby World Cup, the youngest member of the team at the time. She then made her debut in a match against
South Africa, where she was brought on as a substitute. She made a further appearance as a substitute in the following match, against
New Zealand. She made her Six Nations Championship entrance in 2011, where her efforts earned her the title of Young Player of the Year. The team subsequently scored a 13–0 victory over England, marking only the second time the Welsh women had beaten the English team. Powell-Hughes gained further attention during the 2016/17 championship when she scored tries from the back of the scrum in consecutive games against Ireland and France. After appearing in the
Rugby Sevens at the
2018 Commonwealth Games, Powell-Hughes was then picked for the rearranged 2020 Six Nations fixture against Scotland – her first appearance since 2017. She then represented Wales in the 2021 Women's Six Nations Championship. She has earned 46 caps to date. == Personal life ==