High THC Strains

Germination of cannabis seeds is illegal in the UK unless you have an appropriate license issued from the home office.

However, collection and storage of cannabis genetics in seed form the UK is 100% legal. Information on cannabis seeds is for information purposes only and describes the cannabis genetics only, it is not intended to encourage anyone to cultivate cannabis or illegal and/or controlled substances. If you are from outside the UK, please check the laws in your own country before placing an order.

  • Maximum

  • Incredible 

  • Do Not Germinate

  • Preserve Genetics

  • In High Demand

High THC Strains
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  1. Gorilla Glue Auto™
    • 25% High THC Auto
    • 70-75 Days Completely Mature
    • 600 g/m2 OMG Yields!
    • Indica Dominant Cali Hybrid
    ...Hardened Stoners Who Like a Strong Hit! Testing at a full 25% THC, Gorilla Glue Auto Seeds are only for the serious toker. Lightweights best leave this stuff alone! A popular, much-loved strain amongst those who prefer the spicy undertones from an ...
  2. Cheese

    Barney's Farm
    Cheese
    • Classic Genetics
    • Maximum Stench
    • Cheddar Cheese Taste
    • Happy, Relaxed, Munchies
  3. Blue Cheese
    • Amazing High
    • Terrific Taste
    • Very High Yields
    • Easy For Beginners
    Blue Cheese is a truly magical strain that successfully combines all that we love about both classic Cheese & the al
    Blue Cheese is a truly magical strain that successfully combines all that we love about both classic Cheese & the always popular Blueberry strain. It's an 80% Indica with massive amounts of THC, so this 100% feminized seed has definite stayi
  4. LSD

    Barney's Farm
    LSD
    • Strong Psychedelic Effect
    • Very Easy to Grow
    • Fast Flowering Time
    • High Resistance to Pests
    LSD is a special feminized seed that lives up to its name. You can expect extremely trippy visuals and a full on Indica
    LSD is a special feminized seed that lives up to its name. You can expect extremely trippy visuals and a full on Indica stone from this all-time classic. Couple that with a super-quick flowering time and a forgiving nature that resists most beginners
  5. Critical Kush

    Barney's Farm
    Critical Kush
    • Strong OG Kush Effect
    • Easy High Yields
    • Firm, Solid Buds
    • Beautiful Pine Taste
    Critical Kush is an easy to grow, Cup-winning hybrid from Barney's Farm. It has become popular over the years for b
    Critical Kush is an easy to grow, Cup-winning hybrid from Barney's Farm. It has become popular over the years for being a reliable and rapid producer of quality Kush flowers, solving the problem of typically small yields normally produced by OG
  6. Runtz Muffin

    Barney's Farm
    Runtz Muffin
    • Powerful High – Happy & Relaxed
    • 600 gr/m2 Inside, 1000 gr Outside
    • 70% Indica, 30% Sativa
    • Heavy with Resin, Pops of Purple
    Runtz Muffin ticks all the boxes! Bred from the most in-demand American genetics crossed with Barney’s own Orange Punc
    Runtz Muffin ticks all the boxes! Bred from the most in-demand American genetics crossed with Barney’s own Orange Punch, the only thing that exceeds the candied-fruit flavour is the raging potency. This exceptional feminized seed measures in at a f
  7. wedding cake

    Barney's Farm
    wedding cake
    • Frosted, Skunky Buds
    • Extraordinarliy Generous Yields
    • Versatile Height, Your Choice
    • 24% THC, Expansive High
    Boasting incredible parentage, WEDDING CAKE'S buds come fully frosted and packed with 24% THC. Expect nothing less
    Boasting incredible parentage, WEDDING CAKE'S buds come fully frosted and packed with 24% THC. Expect nothing less than a plant covered in glistening, pink-purple colas.  Potent THC Content Flowers between 1 and 2 metres Upwards of 650gr/
  8. Utopia Haze

    Barney's Farm
    Utopia Haze
    • Award Winning Sativa Strain
    • Very High Yields: 650 gr
    • Fruity, Citrus Flavours
    • Resistant to Pests and Disease
    This award winning strain, back-bred from Brazilian Landrace, leaves no room for disappointment. High Yields of Potent B
    This award winning strain, back-bred from Brazilian Landrace, leaves no room for disappointment. High Yields of Potent Buds? Yes, please! Up to 130 cm 650 gr/m2 Yields Fruity, Citric Flavours Pest and Disease Resistant
  9. Sweet Tooth #1

    Barney's Farm
    Sweet Tooth #1
    • Massive Yields: 800gr/m2
    • Medicinal: 1 - 5% CBD
    • Potent Buds: >20% THC
    • Best For Outdoors
    Best for outdoor or greenhouse growing, Sweet Tooth #1 has insanely high yields and extraordinary, dense and potent cola
    Best for outdoor or greenhouse growing, Sweet Tooth #1 has insanely high yields and extraordinary, dense and potent colas.  Prepare for a tropical summer of deep relaxation. Up to 800gr/m2 20% THC Medicinal Properties 55 - 60 Days to Flower
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