Compare Black Jack Auto with more autoflower cannabis seeds, browse lemon cannabis strains, or read the PrimeStrains genetics journal.
Black Jack Auto is an autoflowering feminised cultivar that blends indica and sativa heritage into a compact, fast-finishing plant. It draws on Black Domina and Jock Horror lines, with a Ruderalis contribution that provides the autoflowering trait. Growers can expect a low-profile frame that suits smaller spaces, though it is best suited to those with some experience handling sativa-leaning plants. Flowering is quick, with harvest arriving in roughly eight to nine weeks. The aroma is punchy and earthy, layered with citrus, spice and lemon notes, while the taste carries a dank, pungent character that lingers on the palate. The effect is a clear, energising lift that centres on focus, motivation and mental alertness, which makes it a fitting choice for daytime use. THC is listed at around 16 to 20 percent, with CBD very low. Plants are expected to produce chunky flowers with a resinous finish. Black Jack Auto is a practical pick for growers who want flavour, speed and an uplifting profile in one plant.