Jack Herer (29.712% THCa) – Premium THCa Flower

Jack Herer is a Sativa THCa flower strain bred by Sensi Seeds in 1994 from Haze × Northern Lights #5 × Skunk #1, and it remains one of the most decorated cultivars in cannabis history. This living soil batch tests at 29.712% THCa with 31.696% total cannabinoids and the highest terpene content in this entire release at 3.17% — genuinely terpinolene-dominant, exactly as a true Jack should be.

Overview

Plenty of flower is sold as Jack Herer. Not much of it actually tests like Jack Herer. This batch does. Terpinolene leads at 0.74% — 23% of the total profile — which is the terpene signature the strain is defined by and the one most commonly missing from cuts sold under the name.

Behind it sits an unusually ocimene-heavy structure: ocimene (0.60%) and cis-β-ocimene (0.57%) together account for another 37% of the profile, with β-myrcene (0.25%), trans-caryophyllene (0.21%), limonene (0.19%), β-pinene (0.12%), and α-pinene (0.10%) filling out the rest. Trace α-phellandrene, α-terpinene, and δ-3-carene round it off. Total terpenes reach 3.17%, the highest of any flower in this drop.

The cannabinoid panel reads 29.712% THCa, 31.696% total cannabinoids, and 26.339% total THC, with 1.189% CBGa, 0.198% CBCa, 0.170% THCVa, and small measurable amounts of CBG, CBDa, CBC, and CBN — a broad, complete minor cannabinoid spread rather than a THCa-only profile.

Highlights

• Potency: 29.712% THCa
• Total THC: 26.339%
• Total CBD: 0.033%
• Total Cannabinoids: 31.696%
• Total Terpenes: 3.170% — highest in this release
• Minor Cannabinoids: CBGa 1.189%, CBCa 0.198%, THCVa 0.170%, CBG 0.053%, CBDa 0.038%, CBC 0.036%, Δ8-THC 0.034%, CBN 0.004%
• Top Terpenes: Terpinolene (0.74%), Ocimene (0.60%), cis-β-Ocimene (0.57%), β-Myrcene (0.25%), trans-Caryophyllene (0.21%), Limonene (0.19%)
• Type: Sativa
• Grow Method: Living Soil
• Lineage: Haze × Northern Lights #5 × Skunk #1 — Sensi Seeds, 1994
• Awards: High Times Cannabis Cup 1994 (1st), Cannabis Cup Sativa 1999 (1st), multiple Highlife Cup wins
• Experience: Energetic, clear, creative, talkative, daytime

Aroma and Flavor

Jack Herer smells sharp, green, and alive. Terpinolene gives it that unmistakable piney-herbal top note with a lemony edge; the double dose of ocimene layers in something sweeter and more floral, almost tropical. Underneath, pinene brings forest freshness and trans-caryophyllene adds a light peppery spice.

The flavor is pine and lemon zest up front, a sweet herbal-floral middle from the ocimenes, and a clean spicy-woody exhale. This is a bright, aromatic smoke — nothing heavy or musky about it — and at 3.17% total terpenes the flavor intensity is noticeably above average.

Effects and Usage

Jack Herer is the reference point for a functional daytime sativa. The effect is fast, clear-headed, and energizing — elevated mood, sharper focus, and a strong creative and conversational pull, with very little body weight to it. Terpinolene-dominant profiles are consistently associated with this kind of bright, stimulating character, and this batch has it in full.

Best suited to mornings and afternoons, creative work, physical activity, and social situations. Pacing tip: sativas this clear can be deceptive — at 29.712% THCa the potency is still substantial. Users sensitive to stimulating strains should keep the dose modest.

Strain Background

Jack Herer was released by Sensi Seeds in 1994 and named for the activist and author of The Emperor Wears No Clothes. Sensi describes it as a three-way hybrid of Skunk #1, Northern Lights #5, and Haze — more precisely, Haze crossed with Northern Lights #5 and Shiva Skunk (itself NL#5 × Skunk #1), putting the final plant at roughly 50% Haze.

Its award record is among the deepest of any cultivar: first place at the 1994 High Times Cannabis Cup, first in the sativa category in 1999, and multiple Highlife Cup wins between 2002 and 2018. It was later distributed through Dutch pharmacies as a recognized medical-grade strain — a regulatory status almost no commercial cultivar has achieved.

Jack Herer circulates as roughly four distinct phenotypes, three sativa-leaning and one indica-leaning, which is why flower sold under this name varies so widely. The terpinolene-forward, ocimene-rich profile on this COA is the sativa expression the strain is famous for.

This batch was grown in living soil, a no-till organic method that builds a self-sustaining soil microbiome instead of relying on synthetic nutrients. The 3.17% total terpene content and broad minor cannabinoid spread are what that method is capable of producing.

Not to be confused with Jack Flash, Jack the Ripper, Black Jack, or Jack Frost — all separate strains. Premium Jack, Platinum Jack, and The Jack are aliases for Jack Herer itself.

Lab Tested and Verified

• Lab: Cannabis Chem Lab — Flandreau, SD
• Sample ID: 2607CCH1121.6238
• Date Tested: 07/28/2026
• THCa: 29.712%
• Δ9-THC: 0.248%
• Δ8-THC: 0.034%
• Total THC: 26.339%
• Total CBD: 0.033%
• Total Cannabinoids: 31.696%
• Total Terpenes: 3.170%
• Moisture: 6.2%
• Water Activity: 0.447 aw

A full Certificate of Analysis (COA) is available — see the linked PDF on this product page.

Frequently Asked Questions

Is Jack Herer Indica or Sativa?
Jack Herer is a Sativa — a sativa-dominant hybrid at roughly 55% sativa, and this batch tests as the classic sativa phenotype.

What does Jack Herer taste like?
Pine and lemon zest up front, a sweet herbal-floral middle, and a clean spicy-woody exhale. The nose is sharp, green, and piney with a tropical-floral lift.

What is the dominant terpene in Jack Herer?
Terpinolene, at 0.74% in this batch — 23% of the total profile. This is the terpene Jack Herer is defined by, and many cuts sold under the name lack it entirely. Ocimene (0.60%) and cis-β-ocimene (0.57%) are close behind.

What are the genetics of Jack Herer?
Haze × Northern Lights #5 × Skunk #1, bred by Sensi Seeds and released in 1994. The Northern Lights #5 × Skunk #1 component is the strain Shiva Skunk.

Is Jack Herer good for daytime use?
Yes. It is one of the most widely used daytime sativas, known for clear-headed energy, creativity, and sociability with minimal body heaviness.

How potent is Jack Herer?
This batch tests at 29.712% THCa with 31.696% total cannabinoids, and carries the highest terpene content in this release at 3.17%.

What is living soil flower?
Living soil is a no-till organic growing method that builds a self-sustaining soil microbiome instead of relying on synthetic nutrients. It generally produces the most complete terpene and cannabinoid expression a strain can reach.

Storage Instructions

Store Jack Herer in an airtight container in a cool, dark, dry place. Terpinolene and the ocimenes are among the most volatile terpenes there are, so keep this one well sealed and away from heat and light — it has more to lose than most flower. Seal tightly between uses.

thisthat CBD Quality Standards

All thisthat CBD flower is slow-cured, hand-trimmed, and third-party lab tested. Our products comply with federal hemp regulations and are shipped discreetly to qualifying states. Each batch is evaluated for potency, moisture balance, and overall quality before it reaches you.

Legal and Medical Disclaimer

This product contains hemp-derived THCa and complies with the 2018 Farm Bill. Not intended to diagnose, treat, cure, or prevent any disease. Must be 21+. Do not use if pregnant or nursing. Check local laws before purchasing or consuming.