Grandaddy Purple Auto

Grandaddy Purple Auto

A premium cannabis strain known for its deeply relaxing effects and short flowering time. Grandaddy Purple Auto is ideal for both recreational and medicinal users.

A premium cannabis strain known for its deeply relaxing effects and short flowering time. Grandaddy Purple Auto is ideal for both recreational and medicinal users.

Cultivar profile

16% – 19%




Purple Urkel x Bigbud x Ruderalis

Type of Seed



Mostly Indica

Yield Medium
Yield Indoor

1.31 – 1.82 oz/ft² | 400 – 550 gr/m²

Yield Outdoor

10 oz/plant | 300 gr/plant


3.94 ft | 1.2 m

Flowering Time

8 – 10 weeks

Harvest Month

All Season


For Beginners





Alpha-Pinene Camphene Linalool Valencene



LINEAGE Grandaddy Purple Autoflower

The strain resulting from the cross between a Purple Urkel x Big Bud x Ruderalis will produce a hybrid strain Mostly Indica. The strain will likely have a Berry, Hashish, Sweet flavor with a strong Mostly Indica body high.

It also has a Medium THC 16% - 19%, making it a great choice for those looking for a strong and relaxing experience.

The Grandaddy Purple Autoflower is a cross between Purple Urkel x Big Bud x Ruderalis, resulting in a strain with a Berry, Hashish, Sweet flavor, as well as potent Focused, Happy, Relaxed effects and a combination of cannabis flower, cannabis concentrate, and terpenes.

The terpenes found in Grandaddy Purple Autoflower are to include Alpha-Pinene, Camphene, Linalool, Valencene, which are known for their Fatigue, Muscle Spasms, Stress properties.

Grandaddy Purple Auto Sativa or Indica?

When it comes to the Grandaddy Purple Auto strain, a common question among cannabis enthusiasts is whether it leans towards the Sativa or Indica spectrum. Grandaddy Purple Auto is a predominantly Indica strain. Its genetic makeup consists of 70% Indica and 30% Sativa, creating a classic mostly indica profile.

This genetic makeup contributes to the strain's deeply relaxing and sedative effects, making it a preferred choice for those seeking relaxing and tranquil experiences.

Grandaddy Purple Auto Effects

The effects of Grandaddy Purple Auto are famous for their potent and calming nature. This strain induces a deep sense of relaxation and euphoria, thanks to its strong Indica genetics. Users often report feeling physically and mentally relaxed, making it an excellent choice for evening or nighttime use.

Grandaddy Purple Auto is renowned for its ability to relieve stress, pain and insomnia, making it a favorite among medical cannabis users.

GERMINATING CANNABIS SEEDS - Grandaddy Purple Autoflower

It is important to germinate your Grandaddy Purple Autoflower cannabis seeds carefully if you want to have a healthy harvest from day one. Although there are several methods to germinate our Autoflower cannabis seeds, from Blimburn Seeds we recommend our customers to follow our easy and simple technique.

Before removing our Grandaddy Purple Autoflower cannabis seeds from their packaging, remember that cannabis seeds are alive and delicate. The PH of our hands full of bacteria can easily infect them and ruin our germination.

  • Use sterile tweezers or gloves.
  • Two plates or an airtight container (sterilized)
  • Two sheets of kitchen paper (neutral and odorless)
  • Distilled water.

Remember, this is the best technique or method to germinate our seeds. Never place them directly in the soil.

  1. Step: Place a sheet of paper towel on top of a plate. Spray the paper towel with the distilled water.
  2. Step: Place your Grandaddy Purple Autoflower Mostly Indica Autoflower seeds on the damp paper towel and place the other sheet of paper towel on top of the Autoflower seeds without applying pressure.
    Spray with water and cover your Autoflower seeds with the other plate.
  3. Step: For our Grandaddy Purple Autoflower seeds to be in optimal conditions, we must place them in a quality zone of 70-90ºF.
  4. Step: Every 4-6 hours check your seeds so that the towels are never dry. Now it only remains to wait between 24-120 hours for our cannabis seeds to germinate
  5. From Blimburn Seeds, we recommend our customers to record their germination process so they can always claim their Autoflower seeds that do not germinate.

We have a germination guarantee for our customers with a period not exceeding three months and the seeds are excluded from any coupon, promotion or BOGO.

Grandaddy Purple Auto Flowering Time

For growers interested in cultivating Grandaddy Purple Auto from seeds, understanding its flowering time is crucial. This strain typically has a relatively short flowering period of approximately 8 to 9 weeks when grown indoors. Outdoors, it can be harvested in late September to early October.

The swift flowering time of Grandaddy Purple Auto ensures that growers can enjoy its deeply relaxing effects and grape-like flavor without a prolonged wait.

HOW TO GROW WEED - Grandaddy Purple Autoflower?

Grandaddy Purple Autoflower seeds can be grown indoors or outdoors - under optimal conditions, to avoid any problems during their development. Although they are compact and robust, moderately easy to grow and hardy, we should always prevent any pests.

You can use different growing methods to retain and enhance the terpenes and flavors of your Grandaddy Purple Autoflower buds.

  • Use a quality substrate. Perlite, peat or coco coir are ideal for moisture retention.
  • Thanks to the experience of our customers with our Autoflower seeds Grandaddy Purple Autoflower, we know that we can increase yields up to 20%.

Autoflower cannabis seeds are a very popular strain among cannabis growers. They are known for their fast life cycle and their ability to flower automatically after a set period of time, rather than relying on changes in the light cycle like other cannabis strains.

As for the hours of light needed, Autoflower weed seeds can grow and flower with as little as 12 hours of light per day. Unlike other cannabis strains, they do not need a specific amount of light to go from the vegetative cycle to the flowering cycle. We recommend 18/6 or 20/4 to obtain High yields.

This means that growers can have greater control over the growing process and can create an optimal environment for their plants without having to worry about light time.

However, it is important to ensure that the plants receive enough light for healthy growing, as the quality and quantity of light can affect the plant's yield and growing.

Another advantage of Autoflower seeds is their fast life cycle. These plants can grow and flower in as little as 8-10 weeks, which means growers can harvest several times a year.

Also, autoflowering seeds tend to be smaller and more compact than other strains, making them ideal for growing in small spaces or indoors.

As for the quality of the marijuana produced by Auto seeds, it is important to keep in mind that genetics and growing conditions also play an important role.

However, many autoflowering cannabis strains have won awards for their taste, aroma and effects, proving that these plants can produce high quality marijuana.

Remember that our cannabis plants also need good nutrients when our Autoflower seeds are seedlings, in their vegetative period and finally in their flowering period.

When you grow cannabis seeds outdoors, choose the best date for your crop, a place where our cannabis plants receive the most hours of sunshine.

If on the other hand you like to grow your Autoflower seeds indoors and you have good tents, textile pots for growing, led lighting, air extractor, to circulate clean air and of course a good carbon filter to avoid problems with neighbors or the law.

 Keep daytime temperatures between 68℉-80℉ and nighttime temperatures between 7℉-9℉ cooler.

Grandaddy Purple Autoflower plants need low humidity to thrive. Keep relative humidity (RH) levels at 55%-60% during the vegetative phase. Reduce RH to around 40% during the flowering phase. By harvest time, you can reduce RH to 30%.

Outdoors, breeders in the northern hemisphere should sow their cannabis seeds in April for harvest in mid-October. Healthy Grandaddy Purple Autoflower produce about 10 oz/plant | 300 gr/plant of buds each.

Indoors, these crops have a flowering time of 8 - 10 weeks and produce about 1.31 - 1.82 oz/ft2 | 400 - 550 gr/m2.

WHAT DOES THE Grandaddy Purple Autoflower SMELL LIKE?

The buds of the Grandaddy Purple Autoflower are rock hard, soaked in resin and often have a crystalline sheen due to the amount of trichomes. They almost look like they came out of the moon and are excessively covered with resinous trichomes.

The taste and flavor can be described as the perfect blend of Berry, Hashish, Sweet.

Grandaddy Purple Autoflower makes a delicious soft smoke and combines a wide range of effects while a strong and relaxing experience.

Its rare genes produce a premium weed that is hard to beat. Thanks to its large resin production, it is the ideal strain for the production of high-quality extracts and concentrates.

A good terpene profile enhances the flavors of the buds of cannabis plants. Terpenes are volatile organic compounds that are produced in the cannabis plant and have an effect on the aroma and flavor of the buds.

The most common terpenes are Alpha-Pinene, Camphene, Linalool, Valencene.

These terpenes act as a kind of energizer for the flavors of the buds, as they add a fresh, citrusy touch to the sweeter flavors found in the buds.

On the other hand, terpenes also have an effect on the effect that cannabis produces when smoked, as some terpenes have sedative properties, while others can act as stimulants.

For this reason, it is important to know the different terpenes found in a given cannabis strain before smoking it, in order to get the most out of the flavors and effects they produce.

EXPERIENCING THE Grandaddy Purple Autoflower STRAIN

Grandaddy Purple Autoflower is one of the best marijuana strains available in our catalog with more than 950 strains. An herb with a Medium THC of 16% - 19% that gives us a state of happiness, concentration and relaxation.

Its powerful terpene profile where Alpha-Pinene, Camphene, Linalool, Valencene stand out with a higher percentage.

Grandaddy Purple Auto


This mostly Mostly Indica marijuana is considered one of the most potent within the cannabis community. Grandaddy Purple Autoflower is the perfect strain to relax, but it will also take you to a state of happiness and concentration. It can make anyone feel cheerful and happy.

Grandaddy Purple Autoflower is perfect to consume in the evening after a long day. It is a marijuana plant with Mostly Indica structure. A large stem that supports its satellite branches and that we can grow both indoors and outdoors, obtaining a similar production but with a higher yield when it is fed with all the hours of sunshine outdoors.

Our Grandaddy Purple Autoflower is an Mostly Indica that can take between 8 - 9 weeks from germination to harvest. Remember that in each period of cultivation of our marijuana plant it is important to provide it with the corresponding nutrients to obtain resinous buds and trichomes.

Enjoy a unique experience and buy Autoflower seeds Grandaddy Purple Autoflower in our online seed bank, blimburnseeds.com.

Grandaddy Purple Autoflower Terpenes

Fatigue relief: The feeling of fatigue is produced by two types of receptors, and the CB1 and CB2 receptors receive cannabinoids such as THC and CBD, helping the body to achieve a balance of energy and help us through the day.

Pain relief: The appearance of the terpenes Myrcene and Humelene is a trigger for pain reduction. When the terpene Eucalyptol is present, it is a great ally in reducing chronic pain. It is present in earthy, musky, woody and spicy aromas and in the terpene Eucalyptol Mint.

Stress relief: Limonene is the terpene that should predominate because it reduces stress, improves mood boots and gives us a good dose of happiness. It is present in citrus, lemon and sour aromas.

WHERE CAN I GET FREE Grandaddy Purple Autoflower CANNABIS SEEDS?

Get your seeds free now with our BOGO (Buy One Get One Free) promotion that allows you to buy a packet of selected seeds and receive another packet of seeds of the same variety for free.

It is important to note that this promotion only applies to selected products and cannot be combined with other offers or discounts. In addition, this promotion may be subject to change or restrictions without prior notice, so please check the terms and conditions of the offer before making a purchase.

Enjoy a unique experience buy feminized seeds from a family owned and trusted seed bank like Blimburn. We were born in 2002 with the aim to develop new strains, preserve old school strains and provide cannabis growers with the highest quality seeds.

Choose feminized seeds, autoflower seeds, fast flowering seeds, cbd seeds or regular seeds, we send them in their original packaging directly to your home. Fast and discreet shipping with germination guarantee.


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Grandaddy Purple Auto . REVIEWS

Rated 3 out of 5
April 3, 2023

Planted 3 GDP autos 1st one has some sort of mosaic looking patterns on the leaves since day 1, the second one is a sickly little thing, the third one is a monster. Buds are stacking up from about half way down the stem. I’m at day 75 today and still no Amber anywhere on it. So in short 2 of the three plants are very nice in size and they all smell great completely packed with trycoms can’t wait to try them. I’m would estimate my heild will be around 6oz total for all 3

Avatar for Leroy
Rated 5 out of 5
March 28, 2023

Growing this now.. Extremely sturdy plant.. in week 5 of flower and she is stacking up very well.. Applied Low Stress Training in mid-veg and early flowering. I topped her 4 times which allowed her to produce multiple tops. Can’t wait to see how much she’ll provide at harvest.

Avatar for Mr.Gonzo
Rated 5 out of 5
March 13, 2023

Good quality. Nice tight buds. And smells sweet.

Avatar for Bryan Farris
Bryan Farris
Write a review and get 15 Blimcoins
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