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top marijuana seed breeders

Like humans, animals, and other plants, cannabis seeds come in male and female varieties. Males are the ones to produce more seeds, while the males [RH9] are the ones to fertilize their female counterparts.

Crop King Seeds is a Canada-based seed bank that started operating in 2005. In 2018, the company was recognized as the top cannabis seed in Canada that ships to the United States as well.

Growers Choice Seed is another seed bank that ships to the US[RH4] . The company has existed for almost 20 years and is probably the most reputable seed bank[RH5] .


Aside from their high-quality products, they also offer free seeds, discounts, occasional promotions, and free worldwide shipping (although there is a charge for their stealth shipping service).

A: There is no definitive answer to this question since seed banks offer cannabis with different genetics. However, understand what your goal is before purchasing in order to select the best marijuana seed for you.

Q: Is it legal to buy cannabis seeds?

I Love Growing Marijuana (ILGM) was founded by Robert Bergman. ILGM started selling cannabis seeds in 2012 and maintains an impressive reputation. It is also one of the better cannabis seed banks that ship to the USA.

Honorable Mentions (Our Readers Love These Strains!)

View’s list of trusted seed vendors here:

Great Auto-Flowering Breeders

In 1998 Dutch Passion made a significant breakthrough for cannabis growers everywhere by developing a process to create “feminized” seeds. Feminized seeds produce only female bud-growing plants (instead of 50% male plants), and are created by breeding two female plants together. This feminization process is now used around the world by breeders everywhere.

Why are Mephisto strains so popular? It’s because they were the first breeder to create autoflowering plants that produce buds with the same potency and quality of photoperiod strains. When I started growing in 2008, most autoflowering strains (or “Lowryders” as they were often called) were low-yielding, and buds just weren’t potent. Mephisto was one of the first breeders to decide they were going to change that. In 2012 they structured a breeding program to take popular photoperiod strains and make autoflowering versions. They’ve been dramatically improving the quality of auto-flowering strains and now offer unique strains that stand on their own.

The owner of Barney’s Farm Seedbank, Derry, started collecting cannabis genetics from around the world in the early 1980s. He then spent 3 years in the Himalayas with other breeders, cross-breeding, and growing different strains of cannabis. They specifically bred plants for high THC content, taste, and aroma.