Granddaddy Purple Strain

Granddaddy Purple strain is another heavy indica strain that is not of the subtle variety. It is widely used as a powerful knock-me-out – and has therefore become a popular choice for those seeking a heavy body stone.

Its buds are also known for being distinctly good-looking in nature – with the buds boasting of a purple hue mixed with red hairs and some crystallization.

Sativa/Indica % Indoor Yield Outdoor Yield Flowering Period
100% Indica14 to 17 ounces per square meter 17 ounces per plant 8 – 11 weeks indoors, mid-October outdoors.

A creation straight out of Ken Estes’ San Francisco lab – Grand Daddy Purple, otherwise known as GDP is a potent indica strain. It is popularly used in the treatment of many psychoactive conditions, and in the management of pain.

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    Grand Daddy Purple’s parentage stems from the crossing of two indica strains, namely Big Bud and Purple Urkle. This strain is a native of California, and has earned its reputation for being a reliable relaxant and stress-buster.

    Information About Grand Daddy Purple Strain

    Origin The Grand Daddy Purple is a product of crossbreeding
    Purple Urkle and Big Bud, two popular Indica strains!
    Plant type 100% Indica
    THC Up to 23%
    CBD Low
    Difficulty Easy
    Climate Indoors
    Plant Size Compact
    Flowers 9 weeks
    Yields 14 to 17 oz per 3x3ft
    Taste & Smell Berry | Fruity | Grape | Sweet
    Uses Insomnia | Lack of appetite | Pain | Stress
    Effects Stress
    Lack of appetite
    ClimateBest growing in a humidity controlled environment (GDP likes humidity to hover around 50%).

    Effects of GDP Strain

    Because GDP is a classic indica, it can create a strong mental high, leaving you to let your thoughts calm down and generate a cool brain buzz. For those seeking a deep and relaxing recreational high, Grand Daddy Purple offers just that. It is a powerful sleep-aid, which makes it the perfect night-time puff.

    Granddaddy Purple Strain
    Granddaddy Purple

    Not only does it help you unwind and let go of all your stresses, but it leaves you feeling happy and content. This is what makes it a great companion for a warm bubble bath at the end of the day.

    A sense of euphoria can also be noticed in the effects of Grand Daddy Purple, and with it a sense of elation, and a strong desire to laugh. Sometimes, GDP can encourage a voracious appetite, but isn’t present in every user.


    Earning its name and reputation, Grand Daddy Purple famously smells like grapes and berries. It is said that a small chunk of GDP can fill a room with its aroma, with a certain sweet and fruitiness lingering in the air.


    Grand Daddy Purple tastes much the way it smells – like grapes and berries. It is reminiscent of an earthy pine mixed with the sweet presence of citrus fruits. Some have also described its exhale as something that would remind you of a grape popsicle.

    Adverse reactions

    Among the few side effects of Grand Daddy Purple, that have been reported, is dehydration and the sensation of a dry mouth and dry eyes. Other adverse reactions to GDP are mild cases of dizziness and sometimes paranoia, although quite rarely. It is also known to cause a very slight yet lingering headache for some.

    Used widely to help manage pain, Granddaddy Purple has proven to be very useful for patients with chronic and acute conditions alike.



    Grand Daddy Purple made its way into the scene originally as a medically created strain. It has been touted as a strong healer among other hybrids, and has gained traction it its popularity as a powerful de-stresser.

    Grand Daddy Purple
    Granddaddy Purple

    GDP is also perfect for those who suffer from irregular sleep patterns, for its ability to relax both the mind and body to aid one to a night of restful sleep. In many cases, it is used in the battle against anxiety and depression, relieving the mind of its worries.

    For cancer patients, it has also proven to help rid one of nausea brought on by radiation and chemotherapy. This makes it also an important factor in restoring appetite in those who are under medication or suffer from anorexia nervosa.

    Indoor Yield

    Kept indoors, GDP is quite happy in hydro or soil alike, with it flowering as average of about 8 – 11 weeks. It can yield up to an estimated 19 ounces per square meter.

    Outdoor Yield

    When grown outdoors, Grand Daddy Purple has the capacity to grow into a dense bush, generating a generous yield at about 17 ounces per plant. It is ready for harvest around the weeks of Mid-October.

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      Big Bud
      Purple Urkle

      FAQ About Grand Daddy Purple Strain

      What is the Grand Daddy Purple strain yield?

      Grand Daddy Purple yields 14 to 17 ounces per square meter indoors and 17 ounces per plant outdoors.

      How much THC does Grand Daddy Purple strain have?

      Up to 23%

      What are the origins of the Grand Daddy Purple strain?

      Grand Daddy Purple was first bred in California, by crossbreeding
      Purple Urkle and Big Bud.

      Have you ever smoked or grown your own Grand Daddy Purple? Please let me know what you think about this marijuana strain in the comments below.


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      Robert Bergman

      Robert Bergman is an Amsterdam-based marijuana grow expert who has years of experience from small grows to massive operations. His passion for growing lead him to develop his own Gold Leaf strain. Now, Robert is dedicated to sharing his knowledge with the world.... [Read full bio]


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        13 comments on “Granddaddy Purple Strain”

        1. I’d like to know when I should pick the buds. The plant looks nice and it’s over from when supposed to be done. To me it looks like it still has a couple of weeks to go. So should I pick it now or wait? Everyone jokes around about 2 more weeks but I just don’t know what is right

        2. […] Pie seeds gain their indica dominance from the strain Granddaddy Purple, but there’s also a noticeable sativa influence from Durban Poison. Unsurprisingly, the […]

        3. Hwy I’m currently growing four of the grand daddy purple it’s amazing I love the buds on it I’m a experience grower for ten years now this is by. Far one of the best top knotch buds I’ve ever grown

        4. Robert. I really like reading your articles.
          I live in in northern Kalifornia, Sierra foothills. 1750′ elevation. Mild springs, 80+ Hot summers 90-100’s, fall, low to mid 80’s. Which strain do you recommend with high yield in my area.

        5. I grow grandaddy purple x Harlequin every year outside, they grow to 8ft tall by 6ft wide, with a trunk rather than a when, they grow to huge dense bushes which start green and turn dark purple halfway into flowering, a totally unique smell and flavour, very sticky buds which turn almost silver when dry due to the amount of trichomes on them, this plant cured my cancer, I swear by it

        6. Oh my God this is absolutely torturous to read, stop trying to sound intelligent with your overly extravagant and completely butchered language, you clearly don’t have a clue how ridiculous this sounds.


        8. Anthony no disrespect to you but I have to disagree to what you said. I’m from Northern California but moved away 3 years ago but before I left GDP was everywhere. Not just in the dispensaries either. I personally knew 2 growers back home that GDP was all they grew but one of the guys stopped growing and the other guy I lost contact with. GDP probably was created to be mainly for medical use but its mainly used as a recreational purpose where I’m from. You can find it on the streets anywhere In NorCal, seeds and clones, I just don’t want to travel back home to be able to get it. I’m so many states away and the cost of a plain ticket compared to the cost of buying them online is way more.

        9. Hi Jasper . . maybe I can help you out on your thoughts and frantic search to find about ” Grand Daddy Purple” … keep in mind that GDP was originally developed in laboratory for specific purposes to appease the needs of its users in the medical marijuana industry. To be honest with you.. GDP is a designer medication for people who are having difficulties with non treatable illnesses and ailments that require the sort of results you get from GDP, and this strain of marijuana may or should only be used by people who are suffering from unknown or un conventionally medical treated methods .. You have to agree with me, and may further find that GDP is not really intended as a recreational use as you would not expect to sit around with a few of your friends and start sharing a bong packed with GDP. I trust and suggest you look around this site here at ILGM ….and look at some of the hybrid hear on this site you should be better off. If you re read what Robert says in his description of GDP… “that is not of the subtle variety and It is widely used as a powerful knock-me-out” smoke. So that being said if you are lookin for the knock me out smoke, than you should continue to exhaust yourself finding GDP.. and in the alternative there should be no real reason to migrate away from Robert Bergman’s Lab . . . Just ask Robert what you would like to achieve and he will set you in a better direction.
          GDP is not something you could plan on sharing with friends as its more of a product of last resort to treat it’s users from suffering the physical pains and sufferance of certain Un-treatable illnesses. I hope I did not offend your intentions or personal wellness with my opinion as I am only a member of this blog.

        10. I’ve been looking everywhere for GDP Feminize seeds but can’t find it to save my life. I clicked on the link here but it took me to ILGM seeds but Robert I can not find them. Please help

        11. Robert . . .the Grand Daddy Purple . . the name itself seems to indicate the high quality and nature of its users beneficial use, and as I understand this Indica strain was crossed and developed for a few specific purposes and with good intend, and Its in my personal opinion * best used in the comfort of your own home and not a kind of novice smokers choice. As if I may understand if the benefits of GDP from a first time users prospective would probably only be determined by experiencing oneself in its euphorically induce state of mind. I would most likely indulge myself and tread a little lightly until I was able to establish myself with GDP.
          I would put GDP a few notches above the best Afghanistan strains , and if i ever have the opportunity now or in the near future I would probably say with scientific certainty if I plan to try the ” Grand Daddy Purple ” , I can assure you I may spoil myself into not smoking any other weed. I would pay and expect a single seed to sell for $180.00 USD . . .a well worth grow for what results your may find ahead of you.