Compare Cannabis Seed Banks & Breeders

Spain (founded)

Delicious Seeds

Founded in Valencia, Spain, Delicious Seeds was established to provide growers with a harmonious balance between medicinal efficacy, high cannabinoid concentration, and rich terpene profiles. Built on the belief that cannabis should be an awakening for the senses, the team behind Delicious Seeds spends years stabilizing and refining each hybrid to ensure every strain delivers an exquisite taste, strong resistance, and predictable growth. Delicious Seeds is best known for pioneering the Early Version category—F1 fast-flowering photoperiod strains that reduce flowering times down to 40–45 days without sacrificing yield or potency. Their diverse catalog boasts dozens of global awards for iconic strains like Sugar Black Rose, Eleven Roses, Golosa, and Cotton Candy Kush, making them a staple for growers in varied climates who need quick outdoor finishes or fast indoor turnarounds. From high-THC cultivars and balanced CBD medicinal strains to rapid autoflowers, Delicious Seeds remains a globally respected brand favored by both medical patients seeking targeted relief and craft cultivators pursuing top-shelf flavor.

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Netherlands (founded)

Devil's Harvest Seeds

Founded in Amsterdam by a pair of experienced veteran breeders, The Devil's Harvest Seed Company was created to bring high-potency, reliable genetics directly to the global cannabis community. Disillusioned with watered-down varieties flooding the market, the team set out to craft high-THC hybrids engineered for heavy yields, fast flowering cycles, and massive terpene production. Devil's Harvest quickly made a name for itself in the European coffee shop scene and international circuit, racking up numerous High Times Cannabis Cups and Highlife awards. Their genetics are known for combining the robust growth habits of classic Dutch landraces and old-school staples with the bold flavors and extreme potency of modern hybrids. Legendary strains like Rollex OG Kush, Devil's Glue, Strawberry Sour Diesel, and Kroma stand as a testament to their breeding precision. Whether supplying commercial cultivators who demand heavy harvest weights or home connoisseurs seeking dispensary-grade resin and flavor, The Devil's Harvest Seed Company continues to deliver top-tier photoperiod feminized and regular seeds built for maximum performance.

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Spain (founded)

Don Avalanche Seeds

Founded in Southern Spain, Don Avalanche Seeds was created by an experienced group of passionate breeders dedicated to bringing heavy-hitting, top-shelf genetics to cultivators worldwide. Situated in the sunny climate of Andalucía, the Don Avalanche team utilizes ideal natural breeding conditions to strictly test, select, and stabilize strains built to withstand environmental stress while delivering maximum harvest potential. Don Avalanche Seeds stands out for bridging classic European stability with the high THC and bold terpene profiles of modern American cultivars. Their curated catalog features standout varieties like Don Gorilla, Don Gelato, Don Amnesia, and Don Purple Zkittlez, available in both photoperiod feminized and automatic formats. By prioritizing strict quality control, high germination viability, and exceptional resin density, Don Avalanche Seeds has established a strong reputation among both commercial operators needing heavy-yielding efficiency and home hobbyists looking for forgiving, dispensary-grade crops.

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Netherlands (founded) / Spain (current HQ)

Double Seeds

Founded by a team of experienced European cultivators and geneticists, Double Seeds was established with a straightforward promise to the grower community: double down on yield, potency, and genetic stability. Recognizing that cultivators want high-performing crops without complicated maintenance, Double Seeds carefully selects and stabilizes parent lines built for vigor and high stress tolerance. Double Seeds’ catalog bridges iconic West Coast US strains with time-tested European staples, offering a diverse range of high-THC photoperiod feminized and automatic varieties. Their lineup features stable, resin-drenched strains like Double Cookies Auto, Double Gorilla, and Double Gelato, engineered for heavy flower production, complex terpene profiles, and fast flowering cycles. By adhering to strict quality control standards and seed selection processes, Double Seeds provides commercial cultivators and home hobbyists alike with dependable, high-yielding cannabis genetics that consistently hit top-shelf standards.

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UK (founded) / Spain (current HQ)

Dr Krippling Seeds

Founded by a network of eccentric, highly experienced master breeders and geneticists operating out of the UK and Spain, Dr Krippling has earned a cult following across the global cannabis community. Driven by an obsession with maximum yield, extreme THC levels, and rapid flowering times, "The Doctor" and his team select only the most robust parent plants to craft their notorious heavy-weight hybrids. Dr Krippling strains are recognized for their massive bud structures, high stress tolerance, and dripping resin production that appeals directly to extraction artists and commercial cultivators. Their catalog features legendary high-potency hits like Incredible Bulk, Blue Kripple, Pickle Rick, and Grand Heft Auto—varieties specifically stabilized to deliver forgiving growth habits indoors and monster yields outdoors. Whether crafting fast-flowering photoperiod strains or heavy-hitting automatics, Dr Krippling continues to set a high standard for growers who demand maximum gram-per-watt efficiency, raw knockout power, and uncompromised genetic stability.

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Spain (founded)

Dr. Underground Seeds

Founded in 2008 in the Canary Islands, Spain, Dr. Underground Seeds was created with a clear directive: to produce 100% feminized cannabis strains that deliver rock-solid stability, massive yield potential, and soaring potency. Rejecting mass-market shortcuts, the team behind Dr. Underground spent years executing rigorous selection processes with elite original clones sourced from top European and American breeders. Dr. Underground earned an international reputation for creating heavy-hitting "monster" strains that cater directly to commercial cultivators needing maximum yield per square meter, as well as home growers pursuing dispensary-grade quality. Their catalog features legendary high-yield varieties such as King Kong, Melon Gum, Brooklyn Mango, and Painkiller, strains famed for their heavy flower density, dripping resin, and vibrant, fruity terpene profiles. By prioritizing strict genetic testing, high germination viability, and robust plant vigor, Dr. Underground Seeds remains a top-choice seed bank for growers seeking reliable, fast-flowering, and heavy-harvesting cannabis genetics.

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