When CANNA Research tested the mostly-Sativa Y Griega using gas chromatography, it passed with a THC count weighing in at a whopping 27 percent.

As for its lineage, the mother of the strain is Amnesia, a clone only strain most likely descended from Super Silver Haze. Amnesia was crossed with what some consider to be the top Sativa strain, Kali Mist from Serious Seeds. Bestowing powerful psychoactive effects, this strain has been described as psychedelic and energetic by users. Shangri La OG from Tilray may also share these same genetics, some places stating it as a cross of Kali Mist and Amnesia with similar effects on the mind.

More casual users may find that Y Griega makes them feel more stoned, which can lead to couch-lock, deep relaxation and even sleep. This strain's high levels of THC may make it effective medication for glaucoma, fatigue and a lack of appetite. Some patients may find it helps deal with inflammation and pain.

Y Griega's sativa structure and intense growth can greatly benefit from the Screen of Green method. It can grow both indoors and out but cares little for temperature fluctuations, fertilizer and beginners. The flowering period can last between 85 and 95 days, being ready to harvest outdoors in early November. Reaching over three meters when growing outside, Y Griega can produce as much as 550 grams.