Critical Jack
aka Critical Jack Herer
- THC
- 14–20%
- Flowering
- 8–10 wk
- Terpene
- Terpinolene
- Effect
- Focused
- Difficulty
- Beginner

These strains list Jack Herer as a parent in their published lineage. Breeders cross a known parent to pass on traits such as aroma, plant structure, flowering time or vigor, so the children of one parent often share a family resemblance. Lineage comes from breeder information and public strain listings; some breeders keep a parent secret, so a family can be larger than what is listed.
Our database lists 32 strains here. Most are sativas (17), followed by hybrids (13) and indicas (2). The lead terpene listed most often among them is terpinolene. 31 of them list a flowering time; the most common is 8–10 weeks.
Learn to grow these strains: Indoor & Outdoor Growing Certificate, $199
Read the Jack Herer strain profile
32 strains
aka Critical Jack Herer
aka Critical Jack Herer
aka Jack White
aka Apollo
aka Super Mega Jackpot, Jackpot
aka Super Jack Herer
aka Captain Jack's
aka Pineapple Jack Herer
Source: CTU strain dataset (public strain listings and breeder info, checked by CTU), verified Oct 2026. Potency, flavor and effects vary by grower, batch and plant. Facts no source lists are left out.
Copyright Cannabis Training University, a subsidiary of Online Training Providers. © 2026. All Rights Reserved.
Medical Disclaimer: The information on this website is for informational purposes only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment.
Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.
Legal Compliance: Cannabis remains federally illegal. Products and information are intended only for jurisdictions where cannabis use and possession is legal.
By using this site, you affirm that you are of legal age (21+) and responsible for understanding your local laws.
