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. Puff Puff Pass Out
    • Super Potent at 20% THC
    • 7 to 10 Weeks Bloom Cycle
    • Medium Height
    • Up To 900g Outdoors!
    Within seconds, Puff Puff Pass Out induces a sedating, medical-grade stone that instantly seeps through your entire body
    Within seconds, Puff Puff Pass Out induces a sedating, medical-grade stone that instantly seeps through your entire body. This feminized seed is a potent 75% Indica with high yields and immense power thanks to Matanuska Tundra X Kali genetics. If you
  2. The Incredible Bulk
    • Unbelievable Yields
    • Very Potent - 24% THC
    • Top Quality
    • Very Popular
    Make sure you have plenty of space before you order these super producers! They'll quickly unwind and expand like J
    Make sure you have plenty of space before you order these super producers! They'll quickly unwind and expand like Jack's beanstalk to become true giants capable of producing up to 1500 gr of top-shelf buds each. That makes it a no-brainer t
  3. Tropicanna Banana

    Barney's Farm
    Tropicanna Banana
    • Clear Tropical Fruit Taste
    • Mould Resistant - Beginner Friendly
    • Massive Yields, Top Potency
    • Happy, Euphoric, Relaxed
    Tropicanna Banana's fabulous fruit flavour draws you in while her immense potency keeps you coming back for more. T
    Tropicanna Banana's fabulous fruit flavour draws you in while her immense potency keeps you coming back for more. THC measures in at 25% for a fast-acting, long-lasting high that makes the mood soar with a euphoric buzz while it also calms and s
  4. Chronic Seeds

    Feminised Seeds
    Chronic Seeds
    • Dank and Skunky Flavour
    • Potent THC Content
    • Massive Yields
    • Classic Stone with Euphoric Edge
    Chronic Seeds from Feminised Seeds are the top choice from cultivators who love dank and skunky flavours. Easy to grow,
    Chronic Seeds from Feminised Seeds are the top choice from cultivators who love dank and skunky flavours. Easy to grow, potent and high yielding, this is a classic smoke with modern traits!
  5. Pineapple Chunk

    Advanced Female Seeds
    Pineapple Chunk
    • Sweet, Pineapple Flavours
    • 15 - 20% THC
    • Hybrid Genes and Effects
    • 6 - 9 Week Flowering
    This exceptionally succulent bud comes with all the tropical flavours of a ripe and ready pineapple! With great yields,
    This exceptionally succulent bud comes with all the tropical flavours of a ripe and ready pineapple! With great yields, a versatile flowering time and wonderful, varied effects, there's not much to say against it. Considering that, what are you
  6. Ice Breaker

    Advanced Female Seeds
    Ice Breaker
    • Huge Yields: >500gr/m2
    • 8 - 9 Week Flowering
    • Kush Flavours
    • 15 - 20% THC
    This strain offers yields of over 500gr/m2 in 8 - 9 weeks of flowering. This makes Ice Breaker the most productive strai
    This strain offers yields of over 500gr/m2 in 8 - 9 weeks of flowering. This makes Ice Breaker the most productive strain in the Advanced Female Seeds collection, and a worthy addition to your grow. With hybrid genetics and comfortable levels of THC,
  7. Yumbolt x Banana

    Cream of the Crop
    Yumbolt x Banana
    • Mainly Indica But Trippy
    • Immense Power - 25% THC
    • Sweet Berry & Banana
    • 60-70 Day Bloom Period
    Cream of the Crop improves the Cup-Winning Yumbolt strain with the addition of their very own Banana genetics. By crossi
    Cream of the Crop improves the Cup-Winning Yumbolt strain with the addition of their very own Banana genetics. By crossing these two cannabis varieties, they retained Yumboldt's intense sweet berry taste while adding complexity with subtle notes
  8. White Widow

    Dutch Passion
    White Widow
    • Original 80's F1 Genetics
    • Truly Old School Flavours
    • Stupid Trichome Production
    • 8 - 9 Weeks Flowering
    This White Widow F1 stays as close to the White Widow genetics of the 80's as it's possible to get. Potent, re
    This White Widow F1 stays as close to the White Widow genetics of the 80's as it's possible to get. Potent, resinous and containing the DNA that helped define the modern conception of cannabis, you have to try this seed.
  9. The Ultimate

    Dutch Passion
    The Ultimate
    • Massive Yields: 750gr/m2
    • Sativa Dominant
    • Very High THC
    • Small Height: 75cm
    With yields pushing 750gr/m2, The Ultimate is one of the highest yielding cannabis strains on the market. Sativa dominan
    With yields pushing 750gr/m2, The Ultimate is one of the highest yielding cannabis strains on the market. Sativa dominant genetics make for a potent, uplifting high as well. There's no reason not to try this plant!
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