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Royal Runtz Auto brings the sweet, candy-led character of the well-known Royal Runtz into a quick-finishing autoflowering format. Created by crossing the photoperiod original with a ruderalis plant, it adds autoflowering genes for a faster cycle and a more discreet grow. Its THC sits at 19 percent, which is lower than the parent but still gives a noticeable, energising high for an auto. Smoking or vaporising the flowers delivers fruity and sweet notes throughout. Plants stay compact, reaching roughly 70 to 100 cm indoors and up to around 120 cm outdoors, which suits small cupboards and sheltered corners. With light training the plants can be shaped to fit tight spaces. Indoor yields are quoted at 350 to 450 g per square metre, and outdoor plants are expected to produce 70 to 100 g each. Seeds are typically ready to harvest around ten to eleven weeks after sowing, making this a satisfying all-rounder for growers wanting reliable results without a long wait.