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The name of this cannabis strain by TH Seeds stems from a sinister drug experiment conducted by the US government in the 1950s. But rest easy, because MK Ultra from TH Seeds, is a potent indica with numerous awards and an exquisite flavor. It'll leave you relaxed and smiling.

Seeds per pack

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Type and Genetics

Feminized cannabis seeds, MK Ultra by TH Seeds are the result of a cross between G13 and OG Kush to create a powerful, Indica-dominant, resin-loaded strain.


It grows vigorously with a contained size and a Christmas tree-like appearance.

Aroma and Flavor

Its flavor is intense and tasty, like pine, oriental woods and spices.


The effect is strong and long-lasting, physically and mentally relaxing. It's perfect for unwinding after a long day, combating stress, and for night use.


Flowers with numerous very dense buds, bursting with resin.

In indoor conditions, you can yield up to 350g per m2, and up to 450g per plant when grown in the soil outdoors.

Flowering Indoors

It can be harvested 56-63 days after the respective vegetative phase.

It adapts well to growing techniques like SOG (Sea of Green) and SCROG (Screen of Green)

Flowering Outdoors

It can be harvested in October in the Northern Hemisphere and in April in the Southern Hemisphere. Height: low.

Sativa/Indica percentage

Indica-dominant hybrid.


THC: High


  • 1st prize indica category, Hightimes Cannabis Cup Amsterdam - 2003
  • 2nd prize indica category, Hightimes Cannabis Cup Amsterdam - 2004
  • 2nd prize solvent extractions, Karma Cup 2014, Toronto Canada

Additionally, it has won several cups presented by clubs and dispensaries.

La Huerta's Opinion

MK Ultra by TH Seeds is a many-times cup-winning cannabis strain. Recommended for extracts.

If you're looking for a powerful Kush strain, we recommend TNT Kush by Eva Seeds.

Data sheet

Types of seeds
Feminized seeds
Indica sativa percentage
100% Indica
Flowering time
Average Flowering (55-65 days)
Potent effect
Citric flavour
Earthy flavour
Hash/Resin flavour
Pine Flavor
Kush strain
Other characteristics
Award winning prize
Ideal for extracts

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