Critical Jack Feminized Seeds

Critical Jack Feminized Seeds combine Critical-family genetics × Jack Herer in a vigorous, sativa-leaning photoperiod hybrid selected for strong branching, large resinous flowers, and a bright citrus-pine aroma. The Critical side contributes faster maturation and denser flower formation, while the Jack side adds vertical vigor, open branching, and sharper spice and pine character.

• Lineage: Critical-family genetics × Jack Herer
• Growth type: Sativa-leaning hybrid, photoperiod
• Plant structure: Medium-tall to tall with strong lateral branching and an open canopy
• Stretch: Moderate to high during early flower
• Indoor flowering: Approximately 8–9 weeks (around 56–63 days)
• Outdoor harvest: Typically late September to mid-October in the Northern Hemisphere
• Flower structure: Long, resinous clusters that finish denser than many Haze-dominant plants
• Resin production: High
• Colour: Bright green with orange pistils and a frosted finish
• Aroma: Lemon peel, citrus, pine, herbs, spice, and light sweetness
• Best suited for: Growers wanting sativa-style vigor with a shorter flowering period and denser flowers than many long-season Haze types

Critical Jack grows vigorously in vegetative growth and can fill a canopy quickly. Topping, low-stress training, or a screen can help control the stronger upward growth and turn the long side branches into productive tops. The open canopy generally allows good airflow when trained well.

Indoors, a practical flowering target is about 56–63 days after the switch to 12/12. Flowers become increasingly dense and resinous through the final weeks, and support may be useful where long branches carry significant weight.

Outdoors, published references place harvest from late September through the first half of October, depending on climate and phenotype. Plants can become very large outdoors when given unrestricted root space, so spacing and structural support should be considered early.

The aromatic profile commonly combines lemon peel and citrus with pine, herbs, spice, and light sweetness. Critical Jack Feminized Seeds are best suited to growers looking for vigorous branching, an eight-to-nine-week indoor bloom, and an earlier outdoor finish than many conventional sativa-dominant cultivars.