Every verified seed bank in Canada selling Grandaddy Black, compared by CAD price per seed, seed type, and THC.
Quick Answer
Grandaddy Black seeds are available from 2 verified seed banks on Seennabis, starting at $7.64 per seed (Blimburn Seeds). Offered as Feminized with 22–23% THC. Compare every seller's CAD price below.
Grandaddy Black is a indica cannabis strain (Grandaddy Black Feminized (Seed Supreme genetics)) carried by 2 verified seed banks on Seennabis. Listings report 22–23% THC, with a typical flowering time of 8-10 weeks and medium yields.
It is offered as Feminized seeds. The cheapest verified option is Blimburn Seeds at $7.64 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.
Grandaddy Black seeds start at $7.64 per seed (Blimburn Seeds) and range up across 2 verified seed banks. The full price comparison, including pack sizes, is in the table above.
Blimburn Seeds currently has the lowest CAD price per seed for Grandaddy Black at $7.64. Prices change, so the comparison table is sorted live by price per seed.
On Seennabis, Grandaddy Black is available as Feminized. Each seller's seed type is listed in the comparison table.
Grandaddy Black listings on Seennabis report 22–23% THC across sellers. Exact lab ranges vary by breeder and growing conditions.