Y Griega Strain

From Barcelona, Spain, a cannabis comes to us containing a mind-boggling 28% THC. Bred by Medical Seeds, Y Griega (also called Y) is a mostly Sativa hybrid that brings on an intense cerebral high. But far more than the extreme experience some recreational users crave, it is the medicinal value that makes it more valuable. Regardless of the purpose of using it, there is no doubt that it will deliver.

To develop Y Griega, the breeder used two Sativa-dominant strains – Amnesia Haze and Kali Mist.

For cannabis connoisseurs, the names of the parent strains must be familiar. Both are highly potent and sought after for the cerebral effects they induce. It should not be surprising to see the offspring retaining much of the Sativa heritage. Surprisingly, though, it is the insane level of THC that turns heads. No doubt, it is the result of comprehensive crossing and backcrossing over an extended period of time.

Although its Indica side is relatively small, never underestimate it too. Use a tad bit too much, and it can leave users in a couch-lock.

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    Information about Y Griega:

    ORIGINAmnesia Haze and Kali Mist
    EFFECTSHappy – 10
    Energetic – 7
    Uplifted – 7
    Focused – 6
    Euphoric – 5
    Headache – 6
    Paranoid – 1
    Anxious – 1
    Dry eyes – 1
    FRAGRANCEEarthy, sweet, citrus, lemon, orange
    FLAVORSHerbal, pine, fruity, sweet, citrus, orange
    MEDICALStress – 10
    Fatigue – 10
    Pain – 7
    Depression – 5
    Inflammation – 5
    FLOWERING TIME INDOORS12 to 14 weeks
    PLANT HEIGHTUp to 12 feet outdoor
    THC CONTENT %27% to 28%
    CBD %0.01 to 0.08%
    INDICA / SATIVA %20%/80%
    INDOOR YIELD17 ounces or more per square meter
    OUTDOOR YIELD19 ounces or more per plant
    CLIMATEWarm climate

    * 10 is the highest
    * 1 is the lowest


    Beginners ought to stay away from Y Griega. It has an extremely high THC level that results in a psychoactive experience which can be psychedelic. At its onset, it generates an intense, electrifying buzz that can result in visual distortions and amplified senses. At the same time, it uplifts the mood by inducing a euphoric feeling.

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    If only a small amount is used, some users may find themselves with a sharper focus. But for most people, the strain simply is overwhelming. Instead of ideas, users often fall into deep introspection. If there are strains that can make people heavily stoned, this is one.

    Y Griega Effects
    Y Griega Effects – Image powered by Seedfinder.eu

    At some point, the Indica side kicks in resulting in the users feeling completely at ease. While relaxes, some people may have a hazy mind. In almost all cases, people using Y Griega end up in a heavy couch-lock and eventually drifting off to sleep.


    Smelling the bud provides no clue to its insane potency. In fact, it emits an extremely delightful scent of citrus, lemon, and orange mixed with the refreshing smell of earth.


    The same delicious scent it emits carries over to its flavors. Upon exhalation, it leaves a lingering aftertaste of herbs and pine. For many strains boasting of a delectable taste, it is easy to say that the fact that it is tasteful is reason enough to overuse. Not in the case of Y Griega, though. One toke and it hits hard. Hence, it is hard to imagine anyone even overusing the strain deliberately.

    Adverse Reaction

    When it comes to the adverse effects of using Y Griega, one might think it comes with all the bells and whistles, but more amplified compared to others. Surprisingly, despite its insane level of THC, these reactions are quite ordinary. What it means is that simply because of its extremely high THC, it does not follow that the adverse effects are more pronounced. In essence, the strain may be overwhelming, but where it underperforms is in its side effects, and that is a good thing.

    Y Griega Adverse Reaction
    Y Griega Adverse Reaction – Image powered by Seedsman.com

    Users can expect to experience a certain degree of the mouth feeling dry. It is also possible that some may have dry eyes as well. While it can cause only a few people to feel paranoid or more anxious, it is more likely to cause a headache.


    Simply put, once the cerebral effects kick in, the strain takes out stress. It is not even only because of the euphoric rush but also due to the psychedelic experience. Although it does come with an energizing buzz, most people often tend to stay seated on the couch especially when the mind becomes foggy.

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    Psychologically, the shift in attention should be of benefit to people suffering from chronic pains and aches. In essence, it takes the mind away from the discomforts.

    Y Griega Medical
    Y Griega Medical- Image powered by Cannapedia.cz

    Often, many people associate the medicinal value of cannabis with CBD. Due to its very low levels, Y Griego is not suitable for the purpose of treating or controlling seizures, epilepsy, or tremors. However, some conditions or illnesses respond to THC. One example is glaucoma.

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      Y Griega is not an easy strain to cultivate. For that reason, beginners in planting may want to use another easier-to-grow hybrid. It does grow well indoors and outdoors.

      Flowering Time


      To grow it successfully, growers will want to combine the Screen of Green training technique with hydroponics. It takes quite a bit of time before flowering begins in 12 to 14 weeks. Once it is ready for harvest, all the hard work is rewarded with some 17 ounces of buds per square meter.


      Y Griega should transition to flowering in the first week of November. Under expert care, it produces pepper shaped buds covered with bright orange hairs and thick coatings of crystals. Each plant can produce as much as 19 ounces.

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


      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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      • Grow With My Quick Start Guide
      • Discover Secrets To Big Yields
      • Avoid Common Grow Mistakes

        1 comments on “Y Griega Strain”

        1. The new weed users should try to stay away from Y Griega. It has an extremely high THC level that results in a psychoactive experience which can be psychedelic.