Julie Andrews Macadamia Nut Plantation

My late mother visited the Big Island back in 1972 and always spoke of the Julie Andrews Macadamia Nut Plantation. I am trying to learn the actual name of this plantation but can't get any information. Anybody ever hear of this? I guess she fell in love with the islands during filming of "Hawaii" back in 1965. She probably vacationed there in her later years as well.