Rosemary Wren was born at Oxshott, Surrey in 1922. Her mother was Denise Wren, and her birth came just two years after the Oxshott Pottery was started.

She trained at Guildford School of Art under Helen Pincombe who also had a pottery at Oxshott. After serving her country in the Women's Land Army during the Second World War she started potting at Oxshott.

In 1970 her partnership with Peter Crotty started, and when her mother died the couple took over Oxshott Pottery and moved it to Devon, then Scotland.

Rosemary is best known for her stoneware models, notably birds.