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Granddaddy Purple Autoflower Seeds

Granddaddy Purple Autoflower Seeds

  • checkmarkFeminized seeds for guaranteed results
  • checkmark100% indica
  • checkmarkExtreme THC levels up to 23%
  • checkmarkGreat beginner grow
  • checkmarkDeep relaxation with a calming buzz
More product info
From $99 Regular Price $99
Pack Quantity
5 $99
10+10 $129 $199 Best buy

Your seeds usually arrive within two weekdays but they can take up to a week to arrive. We guarantee safe delivery of your order. Contact us if you have shipping issues.


We handpick premium quality seeds, but they're still a natural product. Follow our germination instructions and your seeds will sprout in no time. Contact us to replace any rogue duds.


We offer free shipping to all US states and never reference marijuana on the packaging or receipts.

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Shipping Info

We ship to all USA states for FREE. Usually seeds arrive within a week.

Trouble with the mail? We will happily replace your seeds. See FAQ

Shop With Confidence

Robert Bergman and the ILGM team gladly share 25 years of experience!

Choosing Seeds

Feminized seeds flower and grow weed when they receive less than 12 hours of light per day. Harvest outdoors in fall, or indoors after 15-20 weeks. Professional growers use these.

Autoflower seeds grow small, easy-growing plants that you can harvest in 10-14 weeks. Great for new growers, small spaces, and multiple harvests per season!

How To Germinate

Germination is guaranteed when you soak the seeds in water up to 72 hours in darkness. When it shows a tail, put it in loose soil with fertilizer. Keep it light and damp and a seedling will appear!

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The Best Deals

Mix Packs are seed variety packs that come with discounts up to 50%. Every strain we offer is also available in a Mix Pack! See All Mix Packs

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Granddaddy Purple Autoflower Seeds

  • Feminized seeds for guaranteed results
  • 100% indica
  • Extreme THC levels up to 23%
  • Great beginner grow
  • Deep relaxation with a calming buzz

Need to relax after a long day? Why not sink into your couch and kiss the worries of the day goodbye? Auto Granddaddy Purple (Auto GDP) is the strain for doing just that. This offspring of Granddaddy Purple and Hindu Kush strains offers lasting relaxation with a strong body high. It's known for melting away tense muscles and intensifying your fondness for whatever you can find in your kitchen.

Plant type 100% indica
THC Up to 23%
CBD Insignificant amount
Difficulty Easy
Climate Indoors | Steppe | Mediterranean
Plant size Compact
Vegetative stage 3 to 4 weeks
Flowering time 7 to 10 weeks
Yields 5 to 15 oz per plant
Taste and Smell Berry | Fruity | Grape | Sweet
Terpenes Alpha-Pinene | Beta-Pinene | Linalool | Myrcene | Geraniol

Granddaddy Purple Autoflowering Origins

Grand Daddy Purple Autoflower gets its name (and look) from its Granddaddy purple parent. Its exquisite purple buds develop as the plant matures and later form into red-tinted crystals. The Hindu Kush aspects of Granddaddy Purple auto plants create a delightful smell and taste and a THC content ranging from 14% to 23% that may leave novice smokers locked to their couch.

This popular Grand Daddy kush strain is a cross of the pure indica strains Granddaddy Purple and Hindu Kush. Grown by Ken Estes in a San Francisco laboratory, Granddaddy Purple is a west coast classic. It is known for its profoundly relaxing high, mild buzz, and sweet grape taste.

Hindu Kush takes its name from its origin, a 500-mile mountain range between Pakistan and Afghanistan. Its subtle but sweet earthy aroma and sedative qualities make it a favorite for anyone looking for a relaxing high after a long day. The combination of these popular parent strains makes for the perfect Grand Daddy kush strain.

What Are Grand Daddy Purple Autoflowers

Prior to the 80s, growers had two options-- Cannabis indica and Cannabis sativa. Starting in the spring, they transition from their vegetative stage to their flowering stage as the days grow shorter in the fall. Indoor growers have learned to imitate this growth cycle with light manipulation, but, like outdoor growers, they're limited to a slow growth cycle and single annual harvest.

The discovery of a third species, Cannabis ruderalis, brought new options. Discovered in Siberia in the early 80s, this new substrain fascinated Amsterdam breeders. It could automatically flower after just a few weeks. They went to work, crossing it with the existing indica and sativa strains to create a new autoflower type.

Of course, more options mean more fun. These days many popular strains, such as this Grand Daddy Purple auto strain, are available as autoflower seeds.

Growing Grand Daddy Purple Autoflowering Seeds

Perfect for new growers, those growing in a small space, or those who prefer more than one harvest each year, the Grand Daddy Purp grow cycle is very accommodating. They don't have special light requirements to bloom, are ready to harvest in 10 to 14 weeks.

As is the nature of all autoflowering strains, Auto GDP can flower on its own, not requiring the sophisticated lighting systems common to other indoor growing plants. Likewise, Auto GDP seeds yield compact-size plants - they can grow to a meter tall in the appropriate environment. Their small size makes them ideal for indoor growers, and they're ready in just 10 to 14 weeks.

These are feminized seeds. Female plants, contrary to male plants, are the ones that actually produce weed. All of our autoflowering seeds are feminized!

We also recommend reading our germination instructions for guaranteed results.

Preferred Climate

This autoflowering indica is perfect for growing indoors due to its small size and preference for a humidity-controlled environment. In the right environment, the Grand Daddy Kush strain does well in mild climates with low humidity levels. Outdoor growers will enjoy its high level of disease resistance.

Granddaddy Purple autoflowers do well in soil or water. If you prefer to grow marijuana outdoors, auto GDP does well in cooler climates.

Feeding Grand Daddy Auto Plants

Visit our nutrient section to get the right plant food for every grow stage.

We recommend giving your plants:

Flowering and Yield

Growers will be pleasantly surprised by the average Grand Daddy purple yield. In just eight weeks, you'll have short, bushy plants with up to 5 to 15 ounces per square yard.

When grown outdoors, the average grand daddy purple yield per plant is about the same, about 4-6 ounces per plant or 150 grams, but they will grow a bit taller. Regardless of the light cycle, these plants will still automatically flower in about eight weeks. They can stand a little cold, but make sure to harvest before the first frost.

Whether growing indoors or out, this plant is remarkably simple to grow and is a great option for beginner growers.

Experiencing Grand Daddy Purple Autoflowering Effects

For those looking for an end-of-the-day or weekend unwinding strain, look no further than the Grand Daddy Purple Autoflowering strain! This pure indica strain relaxes the body, tames anxiety, and relieves sore muscles, making it ideal for a much-needed day off. It also generates a steady appetite for its users, so be sure to stock up on snacks!

There aren't any concerning side effects, but for those green to smoking indica, this high THC strain can lead to couchlock and a noticeable body high. It can also lead to some intense cottonmouth, so make sure you stay hydrated! As is true with most marijuana, inexperienced users may experience side effects such as mild paranoia, dizziness, or mild headaches. Moderate use can alleviate any concerns about this.

Grand Daddy Purple Autoflowering Smell and Taste

The smoke created by this autoflowering strain has a distinctive aroma reminiscent of the smell of hash with a colorful sweetness. As with its Granddaddy Purple parent, a scent of berries and sweet grapes is immediately apparent upon lighting up. It's a delightful experience for those that love a sweet fragrance.

With the pleasant aroma comes a complementing taste, sweet and fruity, recollective of a good glass of wine on a warm summer eve. For marijuana connoisseurs, this encounter with a soft whisper of exotic spices makes it an especially divine strain.

Uses For Grand Daddy Purple Autoflowering

If stress, anxiety, depression, or the general inability to sleep is one of your concerns, you will love this strain. This granddaddy is ready to provide some sweet relief. But, that's not all it has to offer. This indica packs a powerful punch that attacks chronic pain and muscle aches. You'll experience a balanced sense of relaxation for the body as well as the mind.

The long-lasting effects of Grand Daddy Purple make it an ideal therapeutic strain. It is especially well-suited for those looking for an intense high that's not too overwhelming. Its tendency to cause the munchies is also the perfect thing for those battling appetite loss or nausea. Once you've eaten, you're likely to drift off to sleep.

Buy Grand Daddy Purple Autoflowering Seeds

You can buy Grand Daddy Purple auto seeds per separate pack of 5, 10, or 20 seeds.

ILGM Guarantees

When you buy Grand Daddy Purple autoflower seeds, we offer:

  • Discreet shipping and handling
  • Free shipping to all U.S. states
  • Guaranteed arrival of your order
  • Guaranteed germination of your seeds

Find more information in our support center

Happy growing!

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