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Granddaddy Purple Auto is a legendary indica strain now available in an autoflowering format. Bred from Grandaddy Purps and Ruderalis genetics, this feminized, mostly indica hybrid (70% indica, 30% sativa) delivers deep relaxation with a cerebral touch. It completes its lifecycle from seed to harvest in 11–12 weeks, reaching a height of 28–47 inches. Indoor yields range from 1 to 1.3 oz/ft², while outdoor plants produce 2.1 to 2.8 oz each. With a THC content of 19–22%, it offers a complex flavor profile of peppery, berry, pine, and grape notes. These seeds are easy to grow and perfect for beginners and experienced cultivators alike.
This autoflowering version of the classic Granddaddy Purple retains all the beloved traits of its photoperiod parent but adds the simplicity of automatic flowering. The genetic cross of Grandaddy Purps x Ruderalis results in compact plants that rarely exceed 47 inches, making them ideal for small tents or cabinets. Since they are feminized, every seed sprouts into a bud-producing female. The autoflowering trait means no light cycle changes are needed – just provide 18–24 hours of light and watch them thrive. The entire grow cycle takes only 11–12 weeks from seed to harvest, allowing multiple runs per season.
These plants stay short and bushy, typically reaching 28–47 inches in height. They respond well to low-stress training (LST) and can be grown in soil, coco, or hydroponic systems with a balanced nutrient schedule. Indoor growers can expect yields of 1 to 1.3 oz/ft², while outdoor plants produce 2.1 to 2.8 oz each. For best results, maintain temperatures around 70–80°F (20–26°C) and provide good airflow to prevent mold. The buds become dense and resinous, developing deep purple hues when exposed to cooler nighttime temperatures. A proper cure enhances the sweet grape and berry aromas, complemented by peppery and pine undertones.
The terpene profile of Granddaddy Purple Auto is a delightful blend of peppery spice, fresh berry sweetness, pine, and grape. The aroma is pungent and fills the room with a fruity, earthy scent. On the palate, users enjoy a smooth inhale that transitions into a sugary grape finish. Effects start with a gentle euphoric lift that clears the mind, followed by deep physical relaxation that melts away stress and tension. With THC levels between 19% and 22%, this strain is potent but not overwhelming, making it suitable for evening use or treating chronic pain, insomnia, and anxiety. The cerebral component keeps the experience uplifting while the body settles into a calm, heavy state.
Our seeds are hand-selected, tested for germination, and shipped discreetly to ensure your order arrives safely. Granddaddy Purple Auto is perfect for anyone who wants top-shelf purple buds without the complexity of photoperiod strains. Whether you are a beginner or a commercial grower looking for fast turnaround, these seeds deliver consistent results. The genetics are fresh and stable, guaranteeing vigorous growth and resinous flowers. Experience the legend of Granddaddy Purple in an easy-to-grow autoflowering package – order now and add this iconic strain to your garden.
