| Grand Colombian | SnowHigh Seeds | | 40/60 | View variety |
| Grand Daddy Banner | Flavour Chasers | | 80/20 | View variety |
| Grand Daddy Gorilla | Unknown | | 70/30 | View variety |
| Grand Daddy Platinum PurpBerry Cookies | Johnston's Genetics | | 70/30 | View variety |
| Grand Daddy Purp | Grand Daddy Purp | | 80/20 | View variety |
| Grand Daddy Purple | Unknown | | 80/20 | View variety |
| Grand Daddy Purple | Atlas Seed | | 80/20 | View variety |
| Grand Daddy Purple Auto | Atlas Seed | | 100/0 | View variety |
| Grand Daddy Purple x Cinderella 99 | Scott Family Farms | | 70/30 | View variety |
| Grand Heft Auto | Dr. Krippling Seeds | | 50/50 | View variety |
| Grand Master Chem | Lucky Dog Seed Co | | 80/20 | View variety |
| Grand Master Kush | Sumo Seeds | | 50/50 | View variety |
| Grand Master Sexy | Exotic Genetix | | 60/40 | View variety |
| Grand Poobah | NorStar Genetics | | 70/30 | View variety |
| Grand Slam | Dungeons Vault Genetics | | 50/50 | View variety |
| Grand Sundae | Seattle Chronic Seeds | | 50/50 | View variety |
| Grand Theft Auto | The Bakery Genetics | | 50/50 | View variety |
| Grandaddy Black | Original Sensible Seeds | | 90/10 | View variety |
| Grandaddy Confidential | SeedStockers | | 80/20 | View variety |
| Grandaddy Dawg | 707 Seed Bank | | 70/30 | View variety |