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Royal AK is a feminised photoperiod strain that leans towards sativa, built from Colombian, Mexican, Thai and Afghan lines in a 60/40 sativa-to-indica split. Plants typically finish flowering within eight to nine weeks, with outdoor harvests timed around early October. Indoors they stay moderate in height, reaching roughly 80 to 140 cm, while outdoor specimens can climb to 130 to 170 cm. The bouquet is pronounced, combining berry-like sweetness with diesel and earthy notes, and a pine character comes through in the taste. Breeder notes describe the effect as a blend of stoned and high, with a balanced, clear quality. Its reputation rests on several competition results, including a top THC entry in a lab-verified test at the 1999 Cannabis Cup, the High Times Indica Strain of the Year title in 2003, and third place in the Hybrid category at the 2011 High Times Cannabis Cup. Yields are quoted at 525 to 575 grams per square metre indoors and 600 to 650 grams per plant outdoors.