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. THC Bomb

    Bomb Seeds
    THC Bomb
    • Up To 1 Kilo/Seed
    • Finishes in 7 to 9 Weeks
    • Strong High That Lasts
    • Small in Stature
    THC bomb hails from 'White' genetics and was developed to be a hard-hitting, uncomplicated hybrid that perform
    THC bomb hails from 'White' genetics and was developed to be a hard-hitting, uncomplicated hybrid that performs like a champ with high yields you'll want to write home about. Significant THC levels (up to 25%), quick finishing time and
  2. Berry Bomb

    Bomb Seeds
    Berry Bomb
    • Magnificent Colours
    • Smells Like Blueberries
    • Hardy & Resilient
    • Medium Sized for Indoors
    Berry Bomb has it all! This hardy, 100% feminized seed finishes fast, is completely drenched in resin and has a sweet, b
    Berry Bomb has it all! This hardy, 100% feminized seed finishes fast, is completely drenched in resin and has a sweet, berry aroma that's to die for. The flavour matches exactly - of course! THC and yields are surprisingly high given the excepti
  3. Watermelon Zkittelz

    Big Head Seeds
    Watermelon Zkittelz
    • Very Strong: 26% THC
    • Up to 1kg Per Plant!
    • Euphoric but Calming Effects
    • Flavours of Watermelon and Citrus
    A succulent, powerful addition from Bighead Seeds. Watermelon Zkittelz boasts THC levels upwards of 26%, 1000gr per plan
    A succulent, powerful addition from Bighead Seeds. Watermelon Zkittelz boasts THC levels upwards of 26%, 1000gr per plant yields and delicious flavours. It's a must try.
  4. Crystal Runtz

    Big Head Seeds
    Crystal Runtz
    • Zkilletz x Crystal Gelato
    • 56 to 63 Days Flowering Time
    • Creative, Uplifting Effects
    • Well Balanced Indica/Sativa Hybrid
    ...etz and Crystal Gelato A newcomer to the ever popular Runtz family, Bighead Seeds’ Crystal Runtz is a vigorous hybrid teeming with THC and energising your mind and body. Bred from their very popular Zkilletz and Crystal Gelato strains, Crystal Ru...
  5. Girl Scout Gelato
    • 28% THC
    • Delicious, Sweet Flavours
    • Up to 750gr/m2 Yields
    • 50/50 Indica/Sativa
    Strong, stinky and absolutely delicious, the 28% THC content of Girl Scout Gelato takes you to places psychedelic. Wheth
    Strong, stinky and absolutely delicious, the 28% THC content of Girl Scout Gelato takes you to places psychedelic. Whether yield, flavour or power are your thing, she's got them all!
  6. Buzz Bomb

    Bomb Seeds
    Buzz Bomb
    • Uplifting Effects
    • Calming Without Lethargy
    • Beginner Friendly - Easy
    • Spicy Smell & Taste
    If you're looking for special Sativa genetics without hugely long flowering times, then this seed is for you. An up
    If you're looking for special Sativa genetics without hugely long flowering times, then this seed is for you. An uplifting, calming yet invigourating effect can be expected without any obvious body high or lethargy Don't expect to be glued
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