THC
Granddaddy Purple Auto Seeds
Granddaddy Purple Auto Strain Characteristics
| Strain brand | World Wide Cultivars |
| Strain Gender | Feminized |
| Strain light cycle | Autoflowering |
| Suitable for growing | Outdoor, Indoor |
| Strain THC level | 16 - 19% |
| % Sativa/ Indica/ Ruderalis | 20% Sativa / 80% Indica |
| Strain harvest | 1.3 - 1.8 oz/ft² indoors 10.6 oz/plant outdoors |
| From seed to harvest | 56 - 70 days |
| Strain height | 47.2 inches indoors 47.2 inches outdoors |
| Strain effect | Put your evening in slippers |
| Genetics | Purple Urkel x Bigbud x Ruderalis |
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Granddaddy Purple Auto is the kind of strain that dims the lights without asking the room first. Berry sweetness leads the smoke, herbal depth keeps it grounded, and the mostly Indica effect settles in with a happy calm that feels made for slow evenings and softer plans.
Disclaimer: This website is intended for adults 21+ only. Cannabis seeds sold by Herbies contain less than 0.3% THC and are legal in the United States under applicable federal law. They are sold as collectible souvenirs and for genetic preservation purposes. The legality of germination and cultivation depends on your state and local laws. It is your responsibility to know and comply with the laws in your jurisdiction before ordering, possessing, or germinating seeds. Herbies does not encourage or condone any unlawful activity. Any information on this website is provided for educational purposes only and is not medical advice.
Description
Granddaddy Purple Auto Strain Info
Granddaddy Purple Auto is an auto feminized strain with a 20% Sativa/80% Indica ratio and 16-19% THC. This mostly Indica autoflower is compact, robust, moderately easy to grow, and hardy, with a fast cycle that suits growers who want dependable results without photoperiod scheduling. Its effects are focused, happy, and relaxing, giving the strain a calm mood with just enough mental clarity to keep the experience pleasantly present. The source text also highlights resin-covered buds and a sweet berry-style profile, making Granddaddy Purple Auto a friendly option for growers who enjoy classic purple-line character in an autoflowering format.
Genetics
Granddaddy Purple Auto was created from Purple Urkel and Big Bud, with Ruderalis genetics added for autoflowering behavior. Purple Urkel brings the berry-rich Indica personality and classic purple-strain comfort. Big Bud contributes production potential and sturdy growth, while the Ruderalis side gives the plant its automatic life cycle. The result is a quick mostly Indica auto with a mellow effect and practical garden manners.
Flowering Time
Granddaddy Purple Auto goes from seed to harvest in 56-70 days, or about 8-10 weeks. That short cycle makes it suitable for growers who want a quicker turnaround, and outdoor cultivators in the Northern Hemisphere can sow in April for a mid-summer harvest. Since it flowers automatically, indoor growers can use 18/6 or 20/4 lighting to support stronger growth.
Yields
Indoors, Granddaddy Purple Auto can produce around 1.3-1.8oz/ft² (400-550g/m²). Outdoors, growers can expect approximately 10.6oz (300g) per plant in suitable conditions. These yields are solid for an autoflower, especially when plants receive strong light, stable warmth, and enough airflow during the final weeks.
Effects
The high begins with a focused calm that helps the mind stay clear rather than foggy. A happy mood rises next, giving the experience a gentle brightness before the Indica side becomes more noticeable. Relaxation then settles through the body with an easy pace, making Granddaddy Purple Auto a good match for evening use or quiet downtime after a busy day. It is not a chaotic ride. It is more like putting your thoughts in slippers.
THC and CBD Levels
Granddaddy Purple Auto contains 16-19% THC. This profile suggests a medium-strength THC experience, making the strain more approachable than many ultra-potent modern autos. The 80% Indica structure shapes the effect toward body comfort and a calmer finish, while the Sativa share helps keep the mood from feeling too heavy right away.
Smell and Taste
The flavor centers on berry sweetness, with herbal notes adding a drier edge. The source text also mentions sweet caramel grapes, mixed berries, and a floral undertone, giving the aroma a soft purple-strain signature. On the smoke, it feels sweet but not sticky-sweet, with the herbal side adding enough depth to keep the profile balanced.
Grow Tips
Granddaddy Purple Auto reaches about 3.9ft (120cm), making it useful for indoor spaces where height control matters. It prefers Mediterranean-style conditions, with warm dry summers, mild wet winters, and an ideal temperature range of 70-85°F (21-29°C).
- Use 18/6 or 20/4 lighting indoors to support stronger autoflower growth.
- Keep RH around 55-60% in veg, then lower it during flowering.
- Choose perlite, peat, or coco coir for balanced moisture retention.
- Use well-draining soil outdoors to reduce root issues.
- Maintain steady airflow indoors, especially as resin builds late in the cycle.
Granddaddy Purple Auto Seeds for Sale
Searching for auto feminized seeds with berry sweetness and a calm Indica finish? Granddaddy Purple Auto brings fast timing, manageable growth, and mellow purple-line charm to the grow room. Buy online from Herbies and let this easygoing auto turn your next harvest into a softer landing.
Strain FAQ
- Is it legal to order cannabis seeds to the USA?
- 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 the USA?
- Absolutely. is an excellent choice for outdoor cultivation in the climate of the USA. 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 the USA?
- We offer a variety of secure payment options for customers in the USA. 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 the USA
- 20+ years of trust from the grower community.
- Guaranteed authentic genetics.
- Stealth, fast shipping directly to the USA.
- 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.
USA Shipping FAQ
Do you ship to the USA?
Yes. We ship to the USA. Estimated delivery time is 2-5 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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