Was a popular strain into the late 80's. Breeder Steve (Spice of Life) found a clone labeled 'the one to grow'.
YukonBikerGuy told us: Grapefruit was only available as a cutting only (of what? dunno, yet), I know it was making rounds several years back in the Vancouver and lower mainland area of British Columbia. There were a few attempts to make Grapefruit available in a seed form, most notably the Mikado line which was sold worldwide by Marc Emery and other seed companies.
Lothar (BCGA Helpdesk 1999) Grapefruit was the mom of them all crossed with something to become Sweet pink GF. So Sweet Pink GF became the Mom for Many after that. I got my GF from Breeder Steve quite a few years ago now and from what he said to me is he thinks I am the only holder of th true GF left (that would be cool) but I pass it off quite often.