secure connectionGranddaddy Purple Auto packs all the beauty and flavour 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 flavour 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 waste time. She jumps straight to the point with bold purple buds, that unmistakable candy-grape funk, and a full-body high that makes couches feel like magnets. If the original GDP is a heavyweight indica for the purists, this autoflowering version is her fast-track twin. She’s compact, no-nonsense, and surprisingly forgiving in the grow room.
She’s made for anyone who wants rich flavour, dreamy effects, and solid results without the scheduling drama. No light cycle tricks. No complicated feeding regimens. Just sweet, fruity, purple-flushed results from a plant that actually lets you breathe between grows.
If you're looking to fine-tune your grow or push for maximum harvests, take a peek at the Granddaddy Purple photoperiod version.
This one comes straight from West Coast royalty. Granddaddy Purple Auto is the result of combining the original Granddaddy Purple with hardy Ruderalis genetics. GDP herself was born in the early 2000s, a child of Purple Urkle and Big Bud, bred for colour, flavour, and knock-you-out body highs. By introducing autoflowering traits, you get all the depth and weight of the original in a smaller, faster, and more manageable format. Same flavour. Same vibe. Less waiting around.
Take it slow with this one. The high starts with a calm lift behind the eyes, then gently washes down through the body like a warming wave. Perfect for winding down in the evening or just checking out from the world for a bit. It’s deeply relaxing, sometimes sleepy, but always pleasant. Don’t be surprised if you catch yourself giggling at things that aren’t even that funny.
On the flavour side, it’s like a fruit bowl turned up to eleven. Sweet berries, dark cherry, sour grape, a pinch of pine, and just enough pepper on the exhale to keep things interesting. It smells like it tastes. Loud, sweet, and full of attitude.
With around 22% THC and a hint of CBD near the 1% mark, Granddaddy Purple Auto hits the sweet spot between potency and comfort. It’s strong, but it doesn’t bully you. Just enough firepower to make an impression without turning your afternoon into a nap against your will.
This strain’s terpene lineup is an aromatic rollercoaster. Myrcene and linalool lay the groundwork with deep relaxation and a sweet, floral tone. Limonene lifts it all with citrus sharpness, while caryophyllene adds a spicy, earthy backbone. Toss in a few extras like camphene, geraniol, ocimene, humulene, and even a hint of ethyl butyrate, and you’ve got a terp profile as layered as the high itself. Not just good weed. Interesting weed.
This one’s beginner-friendly but doesn't feel watered down. She’s compact, cooperative, and pretty chill about the occasional mistake. As long as she gets some decent light and regular attention, she’ll do the rest. You don’t have to be a pro to pull good results from her, but if you are a pro, she’ll still show off.
Indoors, she usually stays between 60 cm and 100 cm, making her ideal for smaller grow tents, stealth setups, or anyone trying to keep things tight. Outdoors, it’s the same story. Around 60 cm to 100 cm, but with the bonus of a bit more stretch and airflow. Greenhouses suit her just fine too. She's got a solid resistance to mould and fungus, which makes her a safe bet in damper climates or mountain regions where others might struggle.
She moves quickly through her cycle, with flowering done in just 56 to 63 days. Indoors, you’re looking at yields of around 200 to 300 gram per m2. Outdoor plants typically give you 60 to 80 gram per plant, depending on conditions. Not record-breaking, but respectable, especially when you factor in the speed, simplicity, and flavour.
Looking for a legendary strain in a modern format? Granddaddy Purple Auto gives you all the rich flavours, heavy effects, and eye-popping colours of the original, just with less hassle. Whether it’s your first grow or your fiftieth, this one delivers.
Order now at WeedSeedsExpress and add some no-fuss West Coast royalty to your setup. Because sometimes fast and easy really can be this good.
Click here for the full strain description.
| Lineage | Granddaddy Purple X Ruderalis |
| Flowering Type | autoflower |
| Gender | feminized |
| Genotype | Indica |
| Ratio | % Sativa / 80 % Indica / 20 % Ruderalis |
| Grower Profile | Beginner |
| THC | Up to 22.00% |
| CBD | Up to 1.00% |
| Yield Indoor | Up to 300 gr./m2 |
| Yield Outdoor | Up to 80 gr./plant |
| Height Indoor | Up to 100 cm |
| Height Outdoor | Up to 100 cm |
| Climate | Mediterranean, Mountains, Polar, Arid, Temperate |
| Flowering Time | 56 to 63 days |
| Flavors | Berry, Fruity, Sweet, Pepper, Pine, Cherry, Sour |
| Terpines | Camphene, Valencene, Alpha Pinene, Linalool, Limonene, Myrcene, Geraniol, Beta Caryophyllene, Beta Ocimene, Terpineol, Humulene, Caryophyllene Oxide, Hexyl Butyrate, Ethyl Butyrate, Alpha Ionone, Alpha Bisabolol, Nerolidol, Decanol, Nerol |
| Effects | Calming, Relaxed, Sleepy, Energetic, Euphoric, Uplifting, Giggly |
Got my Granddaddy Purple autoflowers in no time. Packaging was discreet and secure. Can't wait to see how they turn out!
Excelent indica leaning strain, maybe the best of that kind
4 found this usefulLove it fast shipping
2 found this usefulWhat does Granddaddy Purple Auto taste and smell like?
Sweet grape and berry with earthy, floral, and spicy notes; the classic GDP grape profile.
What are the effects and THC/CBD levels of Granddaddy Purple Auto?
Deeply relaxing, body-heavy, stress relief and sleep-friendly; indica-leaning. THC is high (around 20-23%), CBD is low (<1%).
How long does Granddaddy Purple Auto take from seed to harvest?
Typically 9-11 weeks from seed to harvest. Flowering begins automatically around week 3-4.
What yield can I expect from Granddaddy Purple Auto indoors and outdoors?
Indoors: around 400 grams per m2-500 grams per m2 under good conditions. Outdoors: roughly 50 grams per plant-150 grams per plant, depending on climate and pot size.
How tall does Granddaddy Purple Auto grow?
Compact to medium; typically 60 cm-120 cm indoors, slightly taller outdoors.
Is Granddaddy Purple Auto easy to grow? Any tips?
Yes, beginner-friendly. It tolerates small mistakes, prefers moderate feeding, and responds well to LST and light defoliation. Avoid heavy transplanting and keep a steady 18/6 light cycle indoors.
What climate does Granddaddy Purple Auto prefer?
Thrives in mild, relatively dry conditions with daytime temperatures around 20 °C-26 °C. In cooler regions, use a greenhouse or grow during the warmest months.
What are the genetics of Granddaddy Purple Auto?
An autoflowering cross of the classic Granddaddy Purple (Purple Urkle x Big Bud) with a Ruderalis line to enable automatic flowering and faster harvests.
What indoor light schedule works best for Granddaddy Purple Auto?
Most growers use 18/6 from seed to harvest; 20/4 also works. Keep lights close but not burning and maintain good airflow.
Will Granddaddy Purple Auto buds turn purple? What affects the colour?
Yes, purple hues are common, especially with cooler nights late in flower. Genetics lead the way; gentle drops to around 18 °C-20 °C at night can enhance colour without stressing the plant.
Ordering Information
We are one of the few seed banks that still ship to New Zealand, and we have many happy Kiwi customers.
Orders to NZ typically take between 10 & 26 business days.
You can find further details about our ordering conditions related to shipping, payment, and guarantees below.
Our goal is to give you the best experience possible! We ship your order quickly, offer free worldwide shipping, use discreet packaging, and guarantee delivery on all tracked orders.
Free shipping
Delivery without tracking is always free of charge. Free delivery with tracking for orders over 130 NZD
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Your privacy matters. Our shipments are super discreet, with no mention of cannabis or seeds anywhere.
Delivery time
You can expect your order within 10 to 26 business days.
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In rare cases where your seeds get damaged or lost during shipping, we’ll replace them for free!
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Our seeds have an average germination rate of 96%. To make sure you have a 100% germination rate, we add free seeds with every standard seedpack (Not applicable to 3-packs or BOGO Deals). In case of germination issues, feel free to contact us any time so we can work towards a solution.
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While our delivery guarantee is available for tracked shipments only, we ensure to initiate an inquiry for any shipment that fails to reach its destination. We value your input as a customer and will collaborate with you to discuss the remaining alternatives, aiming to reach an agreement on the most favorable resolution.
