She was bred by Jack Alexander at Cranleigh Stud in Wanganui and born on Melbourne Cup day in 1973.
Later she was sold to Mr L (Allen) Alexander of Wynthorpe Stud, Tikorangi.
La Mer won numerous Weight for Age races in New Zealand.
After finishing her racing, La Mer was purchased by Irish owner Captain Tim Rogers and exported to Ireland for her breeding career.
La Mer's first foal, Loughmore (Ire), by Artaius, winner of the Sandown Eclipse Stakes, was brought to New Zealand where she won once from ten starts and produced the Group One Manawatu Sires Produce Stakes winner Little Jamie.