Every verified seed bank in Canada selling Black Jack, compared by CAD price per seed, seed type, and THC.
Quick Answer
Black Jack seeds are available from 4 verified seed banks on Seennabis, starting at $5.50 per seed (Premium Cultivars). Offered as Autoflower and Feminized with 19–23% THC. Compare every seller's CAD price below.
Black Jack is a sativa/hybrid/indica cannabis strain (Black Jack Autoflower (Seed Supreme genetics)) carried by 4 verified seed banks on Seennabis. Listings report 19–23% THC, with a typical flowering time of 8-10 weeks from seed and medium yields.
It is offered as Autoflower and Feminized seeds. The cheapest verified option is Premium Cultivars at $5.50 per seed. Because the same strain can vary slightly between breeders, the comparison table lets you weigh price against the seller's documented THC range and germination guarantee.
Black Jack seeds start at $5.50 per seed (Premium Cultivars) and range up across 4 verified seed banks. The full price comparison, including pack sizes, is in the table above.
Premium Cultivars currently has the lowest CAD price per seed for Black Jack at $5.50. Prices change, so the comparison table is sorted live by price per seed.
On Seennabis, Black Jack is available as Autoflower and Feminized. Each seller's seed type is listed in the comparison table.
Black Jack listings on Seennabis report 19–23% THC across sellers. Exact lab ranges vary by breeder and growing conditions.