The Grand Daddy Purple was founded and introduced into the Bay Area by Ken Estes in 2003. Soon after its introduction the medical marijuana strain took the California Collective scene by storm. Ken Estes was aware that many growers and collectives were not only misrepresenting his strain, but that they were also growing inferior medical marijuana and calling it GDP. Due to all the imitation strains of Grand Daddy Purple Ken decided to re-brand his strain as Grand Daddy Purp. This re-branding would not only separate the imitation strains of Grand Daddy Purple from the real one, but it would ensure that patients would continue to receive superior strains of medical marijuana (mmj). All Grand Daddy Purple strains are available to buy on The Choice Seedbank website.