High Yield 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.

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High Yield Strains
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  1. Auto Sour Melon Mass

    Critical Mass Collective
    Auto Sour Melon Mass
    • A Whopping 20% THC
    • Heavy Resin Levels
    • Up To 670 gr/m2 Indoors
    • Height = 80-130 cm
    Auto Sour Melon Mass finishes quickly maturing in just 70-80 days from seed. Extra-large flowers are evenly distributed
    Auto Sour Melon Mass finishes quickly maturing in just 70-80 days from seed. Extra-large flowers are evenly distributed between the central cola and equally productive side branches for a truly impressive yield. You'll love the aroma! It's
  2. Purple Dawg Mass

    Critical Mass Collective
    Purple Dawg Mass
    • Inspiring Diesel High
    • Fuel, Earthy Smells
    • Very High Yields
    • Beautiful Colourful Buds
    Purple Dawg Mass turns up the volume to 10+ with THC that can go all the way to 25%. The high doesn't last as long
    Out of stock
    Purple Dawg Mass turns up the volume to 10+ with THC that can go all the way to 25%. The high doesn't last as long as some other strains, but it's quite a ride - relaxing, inspiring and full of positive vibes. There are 3 different phenos i
  3. Psychotropic Mass

    Critical Mass Collective
    Psychotropic Mass
    • 1:1 Ratio of CBD to THC
    • Exotic Lemon Spice Taste
    • Quick 55 Days Flowering
    • Dense Buds - Very Appealing
    This is an unbeatable and useful medical cannabis seed, created by using genetics from the almighty Cannatonic. You'
    This is an unbeatable and useful medical cannabis seed, created by using genetics from the almighty Cannatonic. You'll find evenly balanced CBD and THC ratios here, along with significant harvest capabilities and an amazing exotic lemon and pine
  4. Moonshine Mass

    Critical Mass Collective
    Moonshine Mass
    • Banging 'Up' Sativa High
    • Lemon & Grapefruit Taste
    • A Mere 65 Days Flowering
    • Old School Haze Genetics
    Moonlight Mass is true to her name with a strong, intoxicating head high that melts perfectly with a taste and smell tha
    Moonlight Mass is true to her name with a strong, intoxicating head high that melts perfectly with a taste and smell that's almost exactly like gin with a lemon twist. For a Sativa-dominant cannabis seed, this strain finishes extremely fast with
  5. Purple Skunk Mass

    Critical Mass Collective
    Purple Skunk Mass
    • Motivational & Energetic
    • Tasty Hashy Lemon Flavour
    • Extremely High Yields
    • 22% THC in Lab Tests
    This plant is a special gift to Sativa lovers. Enjoy all the traits of an exceptional uplifting Sativa with the flowerin
    This plant is a special gift to Sativa lovers. Enjoy all the traits of an exceptional uplifting Sativa with the flowering period of an Indica! She contains genetics from the much loved Lavender from Soma, and exhibits a remarkable profile of tasty te
  6. Super Mutant Mass

    Critical Mass Collective
    Super Mutant Mass
    • Uplifting & Focused High
    • Sour Skunk Taste & Smell
    • Rapid 60 Days Flowering
    • Crazy-Good Bag Appeal
    Super Mutant Mass was created by taking a mutant phenotype of the revered Shiva Skunk and combining it with Monster Mass
    Super Mutant Mass was created by taking a mutant phenotype of the revered Shiva Skunk and combining it with Monster Mass. The results are a fantastically high yielding plant with a positive and focused high, ideal for those that need to medicate in t
  7. Monster Mass

    Critical Mass Collective
    Monster Mass
    • Absolutely Huge Yields
    • Very Resistant to Mould
    • Heavy Sedative Effect
    • Only 50 Days Flowering
    Monster Mass is a spectacular cross of select Critical Mass and Critical + strains with unbelievably high yields. Indoor
    Monster Mass is a spectacular cross of select Critical Mass and Critical + strains with unbelievably high yields. Indoors, the payload can go all the way to 800 gr/m2 while outdoor growers can easily net 900 gr per plant. THC averages around the 20%
  8. Banana Punch

    Barney's Farm
    Banana Punch
    • Delicious, Tropical Flavours
    • Happy, Relaxing Effects
    • From a Favourite Breeder
    • Banana OG x Purple Punch
    A fruity number from Barney's Farm which boasts equally split Indica/Sativa genetics and commensurately brilliant e
    A fruity number from Barney's Farm which boasts equally split Indica/Sativa genetics and commensurately brilliant effects. Happy, relaxing and delicious, it's going to be a sure favourite.
  9. Amnesia Lemon

    Barney's Farm
    Amnesia Lemon
    • 21% THC: Good Strength
    • Massive Yields: 550gr/m2
    • Lemon And Haze Flavours
    • Sativa Dominant Highs
    This hybridisation of Amnesia Haze x Lemon Skunk is poweful, tasty and generous. As per, Barney's Farm have created
    This hybridisation of Amnesia Haze x Lemon Skunk is poweful, tasty and generous. As per, Barney's Farm have created yet another fantastic strain and there's really no good reason to add at least one to your next grow.
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