Sativa
Jack Flash Strain
About Jack Flash Strain
Overview
Jack Flash is a sativa-dominant hybrid, one of the recognized phenotypes within the Jack Herer genetic line, known for a bright citrus-pine flavor and an energizing, clear-headed high. It typically tests between 16% and 21% THC. It joins Jack One, XJ-13, Super Jack, Black Jack, Emerald Jack, and Jack's Cleaner already documented in this database as another branch of the widely influential Jack Herer family, historically considered one of the original named phenotypes of Jack Herer itself.
Strain Helps With
Based on user reviews rather than clinical evidence, Jack Flash is commonly cited by users for boosting mood and mental focus. This is not a substitute for professional medical advice; as with other energizing sativas, it is worth starting with a smaller amount if you are prone to anxiety.
Terpenes
Its flavor is shaped by terpinolene and pinene, the same terpene backbone that defines Jack Herer and its many descendants.
Parents
Jack Flash is one of the recognized phenotypes of Jack Herer, already documented in this database as one of the most influential sativa-dominant genetic lines in modern breeding.
Grow Informations
A moderately vigorous sativa-dominant plant, sharing Jack Herer's genetic structure. Indoor flowering time is approximately 9 weeks.
Jack Flash Strain Effects
Users often report an energizing, clear-headed high with a happy, focused mood. The most commonly reported negative effects are dry mouth and dry eyes.
Energetic
Happy
Uplifted
Focused
Jack Flash Strain Flavors
Jack Flash has a bright citrus-pine flavor.
Citrus
Pine
Frequently Asked Questions Jack Flash Strain
Last reviewed: August 2026
