10. SEVERE SEEDS From Purmerend, The Netherlands 11 cannabis strains Available in packaging of 6 feminized seeds and 11 regular seeds Serious Seeds is another old-school titan that has been around since the beginning. Long-established in The Netherlands, Serious Seeds have actually spent the last few decades committing their time to improving and honing some of the most radical and regularly exceptional marijuana strains available.

In fact, they are so keen to guarantee their…