Rosa Ojeda y Creus was born in Vilanova i la Geltrú on August 30, 1871 into a poor family. In 1877, following the death of her parents, she and her two siblings were taken in by their maternal grandparents, who encouraged their grandchildren to study at school. Rosa loved music and singing, she was also very good at sewing and embroidering, tasks that she would never give up in her life. When her grandfather fell ill, she took care of him until his death. This dedication to the sick did not stop there, together with other girls of the city, she offered her help to the Vilanova i la Geltrú hospital run by the Josephine Sisters of Charity.

It was the beginning of a vocation that she held within herself. In September 1893, freed from family commitments, she took the train to Vic, where the mother house of the Josephine Sisters of Charity was located. There, she dedicated herself to caring for the sick at home. On May 5, 1895, she took religious vows and changed her name to Sister Rosa Ojeda of St. Joseph; she was appointed mistress of novices and private secretary to Sister Dolorès Campolier, the Superior General; with the government of the latter, divergences arose within the Institute between the followers of the Superior General and others opposed to her.

Sister Rosa did not like this atmosphere; with another sister, she asked for an audience with Bishop Morgades i Gili, Bishop of Barcelona, whom they knew when he was Bishop of Vic. He comforted them and authorized them to separate from the Josephine Sisters to found a new religious institute, so the Carmelites of St. Joseph were born on October 10, 1900.

In 1905 the constitutions of the Congregation were approved and in 1911, Rosa and other sisters made perpetual vows; the following year she was elected Superior General, a position she held until her death. In 1915 she came to Rubí and founded the school now called Regina Carmeli, to educate the children of working mothers who could not take care of their children. In the contrasting periods of the time (the Tragic Week, Second Spanish Republic, Civil War) she managed to maintain the spirit of the Congregation, consolidating its work. It was protected by hiding in the homes of the citizens of the city of Rubí.

Mother Rosa died on May 15, 1954.

In 1975, the diocesan process of beatification and canonization for the recognition of heroic virtues was opened, which ended in 1985.

On 3^rd of July 1998 she was proclaimed Venerable.