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Positronic Seeds

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THC: Average | Yield: Very Good
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THC: Strong | Yield: Good
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THC: Very Strong | Yield: Good
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£27.00
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THC: Strong | Yield: Very Good
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Lemon Trip Positronic Seeds
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THC: Strong | Yield: Very Good
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Kush Express Positronic Seeds
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THC: Strong | Yield: Average
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£27.00
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THC: Very Strong | Yield: Average
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Crazy Lazy Positronic Seeds
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THC: Very Strong | Yield: Good
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THC: Very Strong | Yield: Average
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CBD Jack Diesel Positronic Seeds
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£10.50
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THC: Strong | Yield: Average
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CBD Caramel Ice Positronic Seeds
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£10.50
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THC: Average | Yield: Very Good
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CBD + Caramelice Express seeds
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£31.00
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THC: Average | Yield: Good
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£18.45 £20.50
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THC: Good | Yield: Good
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£9.00 £10.00
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THC: Good | Yield: Good
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£19.79 £26.32
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THC: Good | Yield: Good
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£26.55 £29.50
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THC: Good | Yield: Good
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£9.00 £10.00
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THC: Good | Yield: Good
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£20.25 £22.50
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THC: Average | Yield: Good
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THC: Good | Yield: Good
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THC: Good | Yield: Good
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THC: Good | Yield: Good
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THC: Good | Yield: Good
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THC: Good | Yield: Good
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THC: Good | Yield: Good
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THC: Good | Yield: Good
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THC: Good | Yield: Good
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THC: Good | Yield: Good
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THC: Strong | Yield: Good
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£22.55 £30.00
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THC: Strong | Yield: Good
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THC: Strong | Yield: Good
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33 Product(s)

Positronic Seeds: Amsterdam Originals for UK Collectors

Positronic Seeds has long been recognised as one of Amsterdam’s most innovative and respected breeders, offering genetics that combine heritage, authenticity, and stability. For UK collectors, these seeds represent a chance to preserve strains born from decades of selective breeding and a legacy of excellence. Whether you’re seeking feminised, autoflowering, or hybrid genetics, Positronic Seeds deliver reliable lineage and genuine Amsterdam quality, making them must-have additions for serious collectors.

Verified Genetics and Legendary Lineages

The foundation of every seed collection lies in its genetics. Positronic Seeds has earned its reputation by maintaining stable, consistent strains refined through generations of selective breeding. Each seed retains the defining characteristics of its strain, whether that’s a cannabinoid profile, terpene balance, or structural trait. For UK collectors, verified lineage ensures both authenticity and provenance, and Positronic continues to uphold these values with genetics linked to legendary cannabis strains.

Indica, Sativa & Hybrid Variety

The Positronic catalogue spans a diverse range of indica, sativa, and hybrid genetics. Each type carries its own distinct qualities:

Indica seeds: known for compact growth traits and dense genetic stability.

Sativa seeds: linked to taller, open-structured plants with invigorating heritage.

Hybrids: carefully crafted combinations designed to preserve the best attributes of both.

For collectors, this diversity enriches a seed vault with unique flavours, aromas, and cannabinoid profiles, while strains with high THC content remain especially valued for their documented potency and place in Amsterdam’s historic breeding scene.


Feminised & Autoflowering Excellence

Positronic’s range includes both feminised seeds, valued for uniformity and predictability, and their Express autoflowering line, which has gained acclaim for rapid lifecycle traits and genetic stability. These offerings allow collectors to secure seeds representing both traditional breeding methods and cutting-edge autoflower innovation, broadening the scope and richness of any archive.

Seed Viability and Secure Packaging

Collectors prioritise seeds that retain viability and genetic value over time. Positronic Seeds consistently exceed industry averages for germination viability, a reflection of their careful handling and quality control. Seeds arrive in robust, discreet packaging that protects them during delivery and long-term storage. At ICE Headshop, UK collectors benefit from secure, legally compliant shipping, ensuring seeds arrive in prime condition and with total privacy.

Yield Potential as a Genetic Marker

Though yield is tied to cultivation, collectors value it as a genetic indicator of strength and heritage. Seeds from high-yield strains are sought after as proof of robust, reliable breeding. Positronic’s reputation in Amsterdam reinforces the desirability of their seeds, with collections enriched by strains known for both strong yield potential and legendary profiles.

Shop Positronic Seeds at ICE Headshop

From their world-renowned feminised seeds to the innovative Express autoflowering line, Positronic Seeds continues to set the standard in Amsterdam breeding. Explore our collection today to secure genetics that are authentic, stable, and collector-grade. Build your vault with confidence, knowing every seed reflects decades of expertise and verified heritage.

Can you say legendary? Positronics might be the most well-known Seedbank to ever come out of Amsterdam. That was, until they were forced to close down by the man awhile back. But the legend never dies, they’ve recently relaunched in pro-Cannabis Spain without missing a beat on their quality.  All those Champion Genetics and Award-Winning Feminized Seeds are here as well as new high-performing Autos and Medical CBD Cannabis Seeds. Welcome back boys. Glad you’re here.

  • The Highest in Stability Seeds
  • Pioneering Breeders in the Feminized Category of Cannabis Seeds
  • Multiple Top-Tier Champions

Back when they were in Amsterdam Positronics was doing ground-breaking research and pumping out champion after champion. Beyond that they basically pioneered the seedless stable Feminized Seeds we enjoy today. They were doing killer work. A little bit too good, apparently. Johnny-law came down on them, and hard. Positronics had to close shop for a little bit, but luckily for the entire world they popped back up again in Spain with most of their insane genetics still intact. Now, they’ve started collaborating with other amazing breeders, like the CBD Crew, and are pumping out the world’s best Cannabis Seeds once again. Medical Strains that’ll relax you or Potent Monsters that’ll melt your face, they’ve got it all in completely stabilized Feminized varieties. BOOM! Positronics is back, baby.

They’re still out there fighting that good fight for us all, and now here we are offering up this amazing catalogue of genuine Positronics Seeds at the Ice Head low price. Check out all of their Feminized or their new line of absolutely outstanding Auto-flowering Seeds called their express line. Only the best in unique and new Cannabis Strains are here from Positronics Seeds. Industry leader doesn’t even cut it when talking about these guys, more like Industry Champion.