Critical Jack is a sativa-dominant cross of Critical + (Critical Plus) and Jack Herer strains. These plants are quite easy to grow, have good resistant properties, produce high yields and have high levels of THC.
Critical Jack is a vigorous strain that does very well in SCRoG systems and it also clones well. Indoors, plants take around 60 days to complete flowering with the possibility of yields that can reach 625 gr/m2.
Outdoors plants will thrive even in quite temperate climates and can also be grown in a greenhouse. The looser nature of the sativa-style buds makes this strain less susceptible to mould in damp or humid conditions. In the northern hemisphere each plant can yield up to 1200 gr. in late September - early October. Plants are tall, growing to 300 cm. outdoors, and well-branched with plenty of budding sites.
Scents and flavours of lemon citrus, wood and spice are haalmarks of Critical Jack. THC levels are high while CBD is medium. The effect is more on the cerebral side although the Critical + adds some body relaxation effects. In all, this is an uplifting, creative and social strain with a 'feel-good' effect.