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Grandaddy Purple Auto (Herbies Seeds USA)
Written by: Ethan Cole
Reviewed by: Sylvia Johnson
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Description
Grandaddy Purple Auto Strain Info
The history of this West Coast classic starts in San Francisco in 2003. From there, Grandaddy Purple went on to conquer the world thanks to her outstanding flavors of grapes, pine, and spice, as well as her relaxing effects. We created Grandaddy Purple Auto as a tribute to the original but with the added bonus of automatic flowering.
Genetics
The genetic lineage of this auto goes back to such diverse hybrids and landraces as Mendo Purps, Skunk, and Afghani. The resulting purple plant was then crossed with a Ruderalis phenotype to get a cultivar that flowers automatically but doesn’t lose on the original’s outstanding quality.
Flowering Time
Grandaddy Purple Auto’s flowering time doesn’t exceed 63-73 days from seed regardless of light schedules or the duration of days and nights outdoors.
Yields
Indoor-grown plants usually yield 1-1.1 oz/ft² (300-350 g/m²), while outdoors, each plant will produce about 2.5-3.2 oz (70-90 g).
Effects
GDP Auto produces a balanced high that manifests in two distinct phases. First, you’ll feel an immediate surge of euphoria that’ll leave you mentally relaxed yet focused. In a short while, the relaxation will sink deep into your body, filling it with a beautiful buzz and sedating you to the point of sleepiness.
Medical Properties
The balanced all-round action of this smoke makes it the perfect medicine for any mental or physical condition. Some people use it to treat stress, fatigue, nausea, or insomnia, while others report that it helps with aching muscles and joints.
THC and CBD Levels
The THC content in these buds can reach 22%, while CBD levels are negligible.
Smell and Taste
The one-of-a-kind terpene profile of Grandaddy Purple Auto is something you won’t easily forget, as it offers a unique blend of notes – grapes, other berries, spicy pepper, and fresh pine forest.
Grow Tips
A medium-tall variety, GDP Auto usually stays within 3-4 ft (90-120 cm) even if grown outdoors and left untrained. Thanks to her strong Indica dominance, this strain forms compact bushes with medium branching and the perfectly symmetrical structure of a Christmas tree.
- Keep the canopy flat with ScrOG if you want bigger yields.
- Use hydroponics to increase production by up to 20%.
- Lower the day and night temps at the end of the life cycle to bring out the purple hue.
Grandaddy Purple Auto Feminized Seeds for Sale
With Grandaddy Purple Auto seeds, you can be sure that flowering will begin automatically in about a month from sprouts. Thanks to this weed’s feminized genetics, the plants also all turn into females. At Herbies USA Express, you can have these seeds delivered to your doorstep before you say ‘Grandaddy’!
Strain FAQ
- Is it legal to order cannabis seeds to Canada?
- Yes. At Herbies, cannabis seeds are sold as collectible souvenirs. We ask you to check your local laws before ordering, as by ordering you confirm that you are complying with them.
- Is this strain suitable for outdoor growing in Canada?
- Absolutely. is an excellent choice for outdoor cultivation in the climate of Canada. To ensure the best possible results, we recommend checking the strain's specific preferences in the "Characteristics" section and matching them with your local conditions.
- What are the most popular payment methods for customers in Canada?
- We offer a variety of secure payment options for customers in Canada. These include major credit and debit cards (Visa, Mastercard), bank transfers (including SEPA), and cryptocurrencies like Bitcoin and USDT. For the most accurate and up-to-date list of methods available for your specific order, please proceed to the checkout page.
Why Buy Seeds from Herbies in Canada
- 20+ years of trust from the grower community.
- Guaranteed authentic genetics.
- Stealth, fast shipping directly to Canada.
- Multiple secure payment options for your convenience.
- Free seeds and gifts with every purchase.
- Germination guarantee on all freshly stored seeds.
- Backed by thousands of positive reviews worldwide.
Canada Shipping FAQ
Yes. We ship to Canada. Estimated delivery time is 2-10 business days.
Yes. We ship in plain, unbranded packaging. The envelope shows only the necessary delivery details - there’s no mention of Herbies and no indication of what’s inside. For extra privacy, you can choose our optional stealth (“Ninja Mode”) packaging, where the seeds are concealed inside a small souvenir.
We assemble and dispatch orders within 24 hours after payment has been received during working days. On rare occasions, it might take more time than that. Orders placed on weekends are processed and shipped on the next working day.
You’ll get an email with the tracking number after your order is dispatched. Orders are normally processed on weekdays and dispatched within 24 hours (rarely, it can take longer).
If your tracking number is not in your inbox, be sure to check your spam and promotions folders. If the tracking message is not there, please contact us via [email protected] or our live chat.
Currently, we ship with Correos, UPS, Fedex, DHL and Tipsa. You can find more info on shipping and calculate costs/estimated time of delivery on our Shipping page.
If your order hasn’t arrived, please contact [email protected] or submit the support form on our website.
If your order has arrived but there’s a problem, please contact [email protected].
Delivery to P.O. Boxes isn’t available in all countries. For an exact answer for your country, please email [email protected] or contact us via the live chat on our website.
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