Resin Seeds of Barcelona advanced our cause by contributing seeds of their Cannatonic strain, which had tested at 6% CBD and 6% THC at a lab in Spain. Its name may be misleading, since CBD supposedly cancels the sedating effects of THC... In late June Whitney Eads, RN, MSN, planted 11 Cannatonic seeds which she'd gotten from Clark Metcalfe of Feminine Seeds. They grew into four distinct phenotypes, one of which —the one that turned purple, phenotype 3— was found by two different labs to contain slightly more than 13% CBD, with about half as much THC."
The others Eads describes as "light green, darker green, and a super-sativa with very thin leaves." The super-sativa tested very high in THC —above 20%, with almost no CBD."
Eads' Phenotype 3 won the 2010 Emerald Cup for top CBD content. She hadn't made clones, so there is no “mother plant” from which to reproduce the genetics. Fortunately, Cannatonic seeds are commercially available. Eads plans to plant Cannatonic again next year and “see if I can get it to seed itself." She thinks the elevation of her Northern California garden, close to 3,000 feet, may have had something to do with the CBD levels her plants attained, along with her approach to cultivation: "No additives, just good soil and spring water."
Eads is Dr. William Courtney's RN, and credits him —"and watching western medicine over a 20+ year medical career harm, poison, as well as kill patients in the name of reducing pain or attempting to heal them"— for encouraging her attempts to bring out the full potential of cannabis as medicine. "I am focused on the effect of the changing light spectrum and active plant pigments influencing CBD," she adds, "and other antioxidant properties of marijuana."