Critical Mass Collective

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.

Monster Mass Is The Real Deal - Check It Out!

  • Organic Strains

  • Selected By Hand

  • Critical Mass Specialist

  • Incredible Genetics

  • Fems & AutoFems

Critical Mass Collective
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  1. 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
  2. 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
  3. 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
  4. 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%
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