Critical Jack is an extremely resilient Sativa-dominant strain that has been cultivated in locations worldwide, delivering magnificent results in various climates. Speaking of it means talking about high production, genetic stability, vigor, and proven quality. Silent Seeds has used two legendary genetics for the creation of this variety: Jack Herer and Critical +.

Critical Jack plants are generally quite large, with an open structure that allows light to penetrate throughout the plant and prevents the proliferation of molds or pest insects. Its leaves are quite large, with long and rather thin leaflets.

In indoor cultivation, the vegetative stage should not be extended for more than three weeks to avoid excessively tall plants during flowering. Its strong hybrid vigor and stability reflect the genetic line to which it belongs (Skunk #1, Northern Lights, and Jack Herer). The plants are highly productive and offer harvests of abundant, huge, compact, and heavy buds. Indoors, it can produce up to 625 grams per square meter, and outdoor yields can reach up to 1200 grams per plant. Cultivation techniques such as SCRoG or SoG can significantly increase production.

In Critical Jack, the aromatic tendencies of its two parents subtly blend, with a fine Haze line combining notes of cedar, incense, pine, and spices with the citrus influence of Critical +. Jack Herer's Sativa heritage provides a positive, energizing, potent, and long-lasting effect, where its lineage of Haze is clearly marked.