Grand Daddy Purple was founded and introduced into the Bay Area by Ken Estes in 2003. Soon after it's introduction the medical marijuana strain took the California Collective scene by storm. The demand was so high for Grand Daddy Purple that not all collectives in California that wanted to carry the strain were able to at that time.
This is precisely when the nomenclature problem commenced- medical marijuana growers of all walks of life soon started calling any bud that had the slightest coloration of purple Grand Daddy Purple or GDP. With inferior growers claiming that they had the Grand Daddy Purple "GDP" strain, collectives across the state of California started incorrectly referring to these inferior strains as Grand Daddy Purple.
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.
Height: 3-5' (0.9-1.5m)
Flowering: 8-9 weeks from start to finish
Yield: 1-1.5lbs (450-700g) per light
Height: 6-8' (1.8-2.4m)
Flowering: 8-9 weeks
Plant: June 1st
Finish: October 1st
Yield: 2-3lbs (0.9-1.4kg) per plant