Granddaddy Purple Auto packs all the beauty and flavor of its legendary parent into a compact, easy-to-grow plant with bold purple buds and a high that makes everything a bit funnier.
Granddaddy Purple Auto packs all the beauty and flavor of its legendary parent into a compact, easy-to-grow plant with bold purple buds and a high that makes everything a bit funnier.
Granddaddy Purple Auto doesn’t mess around. If you’re after a no-fuss, no-stress indica that knows exactly what it's doing, this is it. Big on flavor, deep on effects, and built for growers who want top-shelf results without overthinking the process, this auto version of the Cali classic brings serious fire in a short, squat package.
It’s still the same legendary Granddaddy Purple at heart. Those bold berry flavors, that unmistakable grape-soaked funk, and the kind of body-melting buzz that makes furniture feel magnetic. But now it’s been reworked into a compact, autoflowering format that gets to work fast and finishes strong. No light schedule shifts. No stress. Just solid performance from start to finish.
Granddaddy Purple Auto traces its lineage back to the West Coast heavyweight champion, Granddaddy Purple. Originally bred from Purple Urkle and Big Bud, GDP made its name in the early 2000s for its knockout indica power and striking purple buds that looked like they’d been dipped in sugar and sprayed with grape soda. This autoflowering version throws in a touch of Ruderalis to shrink the timeline and simplify the process, but keeps the soul of the original fully intact.
Expect a smooth, creeping stone that starts in the head and slowly washes over the body like a warm bath. The high hits with a soft euphoric lift before sliding into full-body relaxation, the kind that makes couches feel extra inviting. Perfect for nighttime use or winding down after a long day.
Flavor-wise, it’s pure dessert. Think rich, sweet berries and fresh-picked grapes with an earthy, candy-like finish. It’s that unmistakable purple profile that made GDP a dispensary staple for decades, only now it comes in a faster, easier format.
Granddaddy Purple Auto delivers a respectable THC level that clocks in around 23%. That makes it plenty strong for most users without tipping into the overwhelming zone. CBD levels hover near 0.5%, just enough to help round out the effects with a soothing, body-calming undertone.
The dominant terpenes here are a beautiful blend. You’ve got myrcene, which helps drive the strain’s signature couchlock calm. Linalool adds a floral, almost lavender-like depth that’s both soothing and aromatic. Limonene brings a touch of citrus brightness to lift the mood. Caryophyllene adds a warm, peppery edge that rounds it all out. It’s a classic mix for a classic strain: balanced, relaxing, and endlessly enjoyable.
This one’s built for beginners but respected by pros. Easy to manage, tolerant of small mistakes, and reliable from seed to harvest. Thanks to the autoflower genetics, it starts blooming on its own within a few weeks. No need to fiddle with light schedules or wait for signs.
Whether you’re working with a cozy closet grow, a full tent setup, or sneaking a plant or two onto the patio, Granddaddy Purple Auto adapts like a champ. Indoors, it stays short and tidy, which is great for tight vertical spaces at 60 cm to 100 cm. Outdoors, it still keeps things discreet but with a little more stretch and airflow if you give it room, reaching around 60 cm to 100 cm. It’s also perfectly happy in a greenhouse, where it gets the best of both worlds: protection from pests and full-spectrum sun power.
Granddaddy Purple Auto flowers fast, usually wrapping things up in around 8 to 9 weeks. Indoors, expect yields in the range of 350 to 450 gram per m2. Outdoor plants produce around 150 to 250 gram per plant, depending on conditions. It’s not just fast, it’s productive too, especially for a compact autoflower.
For growers who want that iconic West Coast indica experience without the long wait or complicated grow cycles, Granddaddy Purple Auto delivers in spades. It’s flavorful, effective, easy to handle, and built to perform even in less-than-perfect setups.
Order now at WeedSeedsExpress and get yourself a pack of one of the most beloved purple strains of all time, streamlined for modern growing. Because some legends only get better with time... and a touch of Ruderalis.
Ordering Information
Our seed bank is primarily located in the EU (Haarlem, The Netherlands), so we can offer lightning-fast shipping to every country in the European Union.
We also have warehouses in the USA & Canada so that our customers across the Atlantic can receive their seeds just as quickly as our European customers.
You can find further details about our ordering conditions related to shipping, payment, and guarantees below.
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In rare cases where your seeds get damaged or lost during shipping, we’ll replace them for free!
