Compare Jack Plant with more feminised cannabis seeds, or read the PrimeStrains genetics journal.
Jack Plant from Advanced Seeds is a feminised variety drawn from Jack Herer genetics, with breeding focused on a predominantly sativa profile and a small indica contribution. That blend is aimed at a sweeter flavour and a quicker route to harvest. Flowering is listed at around nine to ten weeks, which appeals to growers who want a shorter cycle than many classic sativas. The stated THC figure is 20 percent, and the breeder describes the effect as lively and energising. Indoors the plant is listed at roughly 75 to 150 centimetres, while outdoors it can reach around 300 to 500 centimetres. Yields are quoted at 450 to 500 grams per square metre. The variety is also described as having some resistance to mildew. Whether grown in a cabinet or a garden plot, Jack Plant offers a bright, sweet character and a clear, active sativa-led experience.