MK Ultra Strain

MK Ultra is a famed couch-lock inducer, a balanced hybrid that leans more on the indica side of things. This strain is known for its strong cerebral effects, which is no surprise considering its royal heritage. This flower is sticky and dense and makes its presence known instantly by the way of its aroma.

Indoor YieldOutdoor YieldFlowering Period
50% / 50%12oz / m²6oz / plant8 – 9 weeks indoors, late September to early October outdoors.

This strain was named after the CIA project MK ULTRA, a project known for its experiments of mind-manipulation, but this strain isn’t as scary as its name suggests. MK Ultra is an above and beyond balanced hybrid that is known for its indica qualities, and ranking as one of the most popular of its kind.

Here are some amazing seed deals. Buy 10 and get 10 seeds for free!

MK Ultra is a cross between OG Kush and G-13, bred by TH Seeds, and has won a number of prestigious titles an awards, most notably cashing in the 1st prize indica in the 2003 High Times Cannabis Cup, as well as the 2nd prize in 2004. Known for being one of the strongest indicas on the market today, it is best consumed when you have nothing important planned.

Don’t want to read? Watch the strain review on Vimeo or YouTube!

MK Ultra weed strain attributes:
ORIGING-13 mixed with OG Kush
EFFECTSrelaxed – 10
euphoric – 7
sleepy – 7
happy – 6
hungry – 4
dry eyes – 5
paranoid – 2
anxious – 2
dizzy – 1
FRAGRANCEchemical, earthy, pungent, sweet
FLAVORSearthy, sweet, pungent, woody, pine
MEDICALstress – 10
pain – 9
insomnia – 8
depression – 7
lack of appetite – 4
FLOWERING TIME OUTDOORSlate September to early October
CBD %0.20%
INDICA / SATIVA %50% / 50%
OUTDOOR YIELD6oz / plant
CLIMATEtemperate Mediterranean outdoor climate
RESISTANCE TO DISEASEresistant to common molds and mildew

* 10 is the highest
* 1 is the lowest


A fast-acting indica strain, this power-hybrid is one that you should approach with care, especially if you are a novice. MK Ultra is known for its potent effects, inducing a strong surge of utter relaxation in even the most resistant user. This makes it an ideal ally for day when all you want to do is melt into your couch and give way to your inner calm.

MK Ultra can make you feel heavy but at the same time make your mind feel euphoric, with every bit of you succumbing to a more positive a uplifted state. This hybrid can make you feel sleepy, especially in large doses, so if you are in need of a gentle way of finding rest at the end of the day, then look no more.

MK Ultra Effects

The MK Ultra strain is pure bliss and the best companion for a happy state of mind.

buy MK ULTRA Seeds

MK Ultra will have you in fits of giggles without warning, and will make you feel like you are wrapped in a warm and fuzzy blanket of positivity. This strain can also induce the munchies, so have the snacks ready, to maximize your ultimate indica high on this variant.

MK Ultra terpenes

This well-known cannabis strain gets its aromatics from caryophyllene, myrcene, L-Limonene, α-Pinene, carene and humulene.

Aroma & Flavor

MK Ultra is potent also in its aroma, and will carry a scent into the room that will cling onto your walls for a period. This strain can smell like a mixture of chemical earthiness that is marked by some sweetness. It is a pungent strain and will make your mouth water just with its fragrance.

MK Ultra Flavors

This strain is enjoyable to smoke too, because of its diverse mix of flavors. MK Ultra will taste earthy and pungent on the inhale, with a creamy and sweet smoke that will stick to your tongue. On the exhale this strain will taste more woody and like fresh pines on a warm summer day.

Caryophyllenespicy, cinnamon, clover
Myrceneearthy, musky, fruity, clover, hop, pungent
L-Limonenepine, pungent, turpentine, bitter
α-Pinenesharp, turpentine, pine, rosemary
Carenesweet, citrus, pungent, herbal, earthy, musky, wood, cedar, cypress wood
Humulenehops, earthy, wood, herbal

Adverse Reaction

Like any other potent smoke, you can expect some side effects from this strain too. MK Ultra can leave you feeling dehydrated, with a dry mouth that may be accompanied by dry and itchy eyes. In some rare cases you may feel a slight dizziness when smoking this strain.

MK Ultra is a pretty strong variant and can therefore leave you feeling slightly paranoid, especially if you are not accustomed to it potency, or are a novice smoker. This strain may also leave you feeling slightly anxious, although this is a feeling that generally passes quite quickly.


This strain is a potent variant, and is therefore best consumed as a nighttime strain, especially for medical users. MK Ultra can be a powerful stress-reliever, tackling chronic stress with its positivity and ability to create an inner state of relaxation in even the most anxious people.

MK Ultra is a reliable way to alleviate chronic pain, too. This healing hybrid has the ability to eliminate even more persistent pain conditions, such as migraines, muscle spasms and chronic back pain, allowing the patient to find a more organic way to alleviate symptoms.

This hybrid is known for being effective also in the treatment of insomnia, and can help patients find a more relaxed state of mind and prepare them for a night of rest. MK Ultra can relieve feelings of depression in patients, and has been successfully used to treat cancer patients who suffer from a lack of appetite due to invasive chemical treatments.

Download my free marijuana grow guide and start growing MK Ultra strain


MK Ultra Growing

MK Ultra is an ideal choice if you are looking for a strain to grow indoors, as it does well in both soil and hydroponic environments. If you choose to grow this strain in an outdoor environment, be sure to keep it away from frost and in a preferably balmy Mediterranean climate.

MK Ultra provides a strong high and a deep relaxing feeling, making it the go to choice for experienced users. If you wish to try out its potent effects for yourself, then make sure to check our MK Ultra seeds in the ILGM seed shop

Flowering Time


MK Ultra can be expected to yield an average of about 12 ounces of bud per square meter planted. This flower needs around 8 to 9 weeks to flower and become ready for a harvest.


MK Ultra grown in an ideal outdoor setting can be expected to yield an average of about 6 ounces of bud per plant. This hybrid should be ready for a harvest around late September to early October.


  1. OG Kush
  2. G-13

FAQ About MK Ultra Strain

What is the MK Ultra strain yield?

MK Ultra yields 12oz/ m2 indoors and 6oz/ plant outdoors.

How much THC does MK Ultra have?

Around 22% THC.

What are the origins of the MK Ultra strain?

MK Ultra was created as a cross between OG Kush and G-13, and was first bred by TH Seeds.

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


Top 50 Marijuana Strains

Afghan Kush | Agent Orange | AK-47 | Alaskan Thunder Fuck | Amnesia Haze | Berry White | Blackberry Kush | Blue Cheese | Blue Dream | Blueberry | Bubba Kush | Cheese | Chemdawg | Cherry Pie | Chocolope | Death Star | Durban Poison | G13 | Girl Scout Cookies | God’s Gift | Golden Goat | Gorilla Glue #4 | Grape Ape | Green Crack | Harlequin | Headband |Hindu Kush | Jack Herer  | LA Confidential | Lemon Haze | Lemon Kush | Mango Kush | Master Kush | Maui Wowie | Northern Lights | OG Kush | Pineapple Express | Platinum Girl Scout Cookies | Purple Kush | Purple Urkle | Skywalker | Skywalker OG | Sour Diesel | Strawberry Cough | Super Lemon Haze | Super Silver Haze | Tahoe OG Kush | Trainwreck | White Rhino | White Widow

Avatar for Robert Bergman

Mr Robert Bergman PhD


Robert Bergman is an Amsterdam-based marijuana grow expert who has years of experience from small grows to massive operations ... See profile

  • Pinterest

4 comments on “MK Ultra Strain”

  1. Your MK Ultra sold here on ILGM is faker than rob’s Toupee. I had two others grow it too. 100% bullshit!! Mk ultra is the same ANYWHERE on earth! Just shows you assholes just sell whatever bag seeds you have and label them as top shelf genetics. I grew real MK Ultra from TH seeds. Yours smelled of cheese and just ugly aF. NOT TRUE MK ULTRA THAT WE’VE AL GROWN FOR NEARLY 30 YEARS. ALL OF YOUR STRAINS AND SEEDS SOLD HERE ARE FAKE. YOU’RE ALL A BUNCH OF LYING PUNKASS LITTLE BITCHES. I HOPE ALL YOUR GARDENS GET INFESTED WITH RUSSET MITES AND APHIDS.