So, two Blackjack strains, one from the Netherlands’ Nirvana Seeds and the other from Spain’s Sweet Seeds, are available from several seed banks. Blackjack weed seeds. So, Blackjack spelled “Blackjack” by the original breeder, is a cross between Black Domina and Jock Horror in the Nirvana Seeds strain. But the flavor of fresh pine tree and sweet citrus is present in this Blackjack cultivar. This tends to give a euphoric, energizing, and uplifted head high. But blackjack strain according to Nirvana Seeds, has largely Sativa heritage, grows quickly, and after a 56- to 63-day flowering period, delivers medium amounts of big, pungent, trichome-heavy buds. So, is said to generate between 400 and 500 grams per square meter utilizing the Sea of Green (SOG) method, making it best suited for indoor grows. black jack strain

Sweet Seeds’ Blackjack