Positronics Seeds is a Spanish breeder turning out feminised and autoflowering cannabis genetics with a focus on stable, easy-to-grow hybrids. We carry 11 Positronics strains, from cheese and haze classics like Supercheese and Northern Haze Auto to high-THC hybrids like Jack Diesel and Black Widow, plus the CBD-rich Critical 47. Shop the full range below.
Positronics Seeds
Supercheese
Positronics Seeds is a Spanish breeder turning out feminised and autoflowering cannabis genetics with a focus on stable, easy-to-grow hybrids. We carry 11 Positronics strains, from cheese and haze classics like Supercheese and Northern Haze Auto to high-THC hybrids like Jack Diesel and Black Widow, plus the CBD-rich Critical 47. Shop the full range below.
Positronics is one of the older names in the Spanish seed scene, with roots going back to the early days of grow-shop culture in Barcelona. The brand built its reputation on workhorse genetics — cheese, haze, skunk and widow lines stabilised over many generations — rather than chasing whatever hype strain rolls through the calendar. If you want seeds that pop, grow predictably and finish on schedule, this is the shelf we point steady growers at.
The catalogue splits cleanly into three groups: feminised photoperiods (Supercheese, Jack Diesel, Somango 47, Caramelice, Blue Rhino, Black Widow), autoflowers (Supercheese Auto, Jack Diesel Auto, Northern Haze Auto) and a CBD-forward option in CBD+ Critical 47. It's a tight catalogue rather than a sprawling one — every strain in the range is here because it earns its slot.
If it's your first grow, start with an autoflower. Supercheese Auto or Jack Diesel Auto are the easy picks — they stay short, finish on a fixed timeline, and don't need you to flip the lights. A 3-seed pack is plenty to learn your setup before scaling up. Northern Haze Auto is the third option if you specifically want a sativa-leaning effect without the long flowering time hazes usually demand.
Intermediate growers should look at the feminised photoperiods. Supercheese is the signature — loud, resinous, and a reliable yielder once you've got your environment sorted. Somango 47 and Caramelice lean to the sweet, dessert end; Blue Rhino and Black Widow are heavier, more classic indica-dominant hybrids. Jack Diesel is the pick if you want something more uplifting in the jar.
For medicinal or balanced-effect growers, CBD+ Critical 47 is the one strain in the range bred specifically for higher CBD content. It grows much like its high-THC parent — compact, fast-flowering, undemanding — but produces a more measured, less psychoactive smoke. Useful as a daytime option or for growers who want to blend with stronger flower from elsewhere in the cab.
Positronics genetics are stabilised for Mediterranean conditions, which translates well to indoor tents and to outdoor grows across most of Europe. The cheese and widow lines handle a bit of humidity; the haze and diesel hybrids prefer drier finishes. None of the strains in the current range are exotic or fussy — feed conservatively, keep humidity sensible through flower, and these will reward you without much fuss.
Stable, reliable Spanish genetics — particularly their cheese line (Supercheese) and their take on classic hybrids like Black Widow and Jack Diesel. The brand has been around long enough that the strains in the catalogue have been worked over many generations rather than rushed to market.
Supercheese Auto or Jack Diesel Auto. Both are autoflowers, both stay compact, both finish on a fixed timeline without needing a light-schedule change. If you'd rather grow a photoperiod, Blue Rhino or Somango 47 are forgiving indica-dominant feminised options.
Yes — CBD+ Critical 47 is the CBD-rich option in the range, bred for a more balanced cannabinoid profile rather than maximum THC. It grows much like a standard Critical-line plant: compact, fast and undemanding.
Autoflowers (Supercheese Auto, Jack Diesel Auto, Northern Haze Auto) for speed, simplicity and small spaces. Feminised photoperiods (Supercheese, Black Widow, Somango 47, Jack Diesel and the rest) for bigger plants and bigger yields, provided you can run a 12/12 flip.
Last updated: April 2026
Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.
