Sativa Dominant Hybrid
Jack Herer
Also known as: Jack Herer, JH, The Jack
THC18% - 24%
CBD0% - 1%
Flowering9 - 11 weeks
Top terpenes: Limonene, Myrcene, Caryophyllene
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Quick answer
Jack Herer is Sensi Seeds' legendary 1994 sativa hybrid (Haze x Northern Lights #5 x Shiva Skunk), named after the author of The Emperor Wears No Clothes. 18-24% THC, spicy-pine flavour, 1999 Cannabis Cup winner. The classic clear-headed daytime sativa.
Jack Herer is the strain every cannabis fan should try once - the nose is peppery pine and spice, unlike anything else, and the high is clear, creative and famously functional. It's named after the author who wrote the book that started the legalization movement, which is why you'll see it everywhere. A classic for a reason.
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Strain facts
| Type | Sativa Dominant Hybrid |
|---|
| Terpenes | Limonene, Myrcene, Caryophyllene |
|---|
| Flavours | Herbal, Pine, Spicy |
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| Flowering | 9 - 11 weeks |
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The story of Jack Herer
Named for the author of The Emperor Wears No Clothes, Jack Herer was bred by Sensi Seeds in Amsterdam in the 1990s from a Haze x Northern Lights #5 x Shiva Skunk cross. It took multiple Cannabis Cups (Sensi's own records list nine overall across categories) and became the benchmark for what a daytime sativa-dominant hybrid should be: clear-headed, spicy-pine flavour and an energetic but manageable high. It remains one of the most awarded and most widely planted strains in Dutch coffeeshops.
Terpene breakdown
Limonene0.446%
Myrcene0.334%
Caryophyllene0.277%
Pinene0.255%
Terpinolene0.128%
Humulene0.099%
Linalool0.075%
Nerolidol0.039%
Terpene shares from lab-tested samples (% of total terpene weight).
- Limonene (0.446%): bright citrus lift on top.
- Myrcene (0.334%): the relaxed, body-heavy base.
- Caryophyllene (0.277%): peppery, fuel-adjacent spice underneath.
Jack Herer's dominant terp is Limonene, and it leads the flavour on every inhale.
Growing Jack Herer
Sensi Seeds' flagship: a 9 to 11 week flower with sativa stretch but forgiving hybrid manners and genuinely good yields - a large part of why coffeeshops grew it for decades. It rewards topping and space but does not punish beginners the way pure Haze does. Dense, pepper-flecked buds with a resin sheen.
How to consume Jack Herer
The morning smoke. Clear, energetic and creative without the racy edge of pure Hazes - the NL#5 and Skunk genetics steady the ride. At 18 to 24 percent THC it is approachable, and the high is famously long-lasting. Perfect for work sessions, hikes and anything requiring a functioning brain.
Jack Herer vs similar strains
Against parent Haze, Jack Herer is faster-finishing, steadier and more forgiving - the whole point of the cross. Super Silver Haze runs more intense and longer-lasting; Jack Herer is the smoother daily driver. Green Crack is the other great daytime sativa but fruitier and more racy. For a similar clear head with a citrus twist, Strawberry Cough and Pineapple Express both sit in the same functional lane.
Frequently asked questions
What is Jack Herer?
Jack Herer is a sativa-dominant hybrid bred by Sensi Seeds from Haze x Northern Lights #5 x Shiva Skunk, named after the cannabis activist and author. It tests 18-24% THC and won multiple Cannabis Cups.
What does Jack Herer taste like?
Spicy pine, fresh earth and citrus - the classic Amsterdam coffeeshop profile from its terpinolene and pinene.
What are Jack Herer's effects?
Clear-headed, energetic and creative with a long duration. Functional daytime strain without the racy edge of pure Haze.
Is Jack Herer indica or sativa?
Sativa-dominant hybrid (roughly 55/45 sativa by Sensi's classification). The high is cerebral but steady.
Where can I buy Jack Herer in Canada?
Check the in-stock list above - BMWO ships Jack Herer Canada-wide with live pricing.
Storing Jack Herer
Terpinolene is volatile and fades faster than most terps, so storage discipline matters more here than on kush strains: airtight glass, dark cupboard, humidity pack at 58 to 62 percent, and buy quantities you will finish within a couple of months.