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Jack Herer Seeds
Jack Herer seeds grow one of the most awarded sativa-dominant hybrids ever bred: Haze crossed with Northern Lights #5 and Shiva Skunk, wrapped in terpinolene pine and crowned at the High Times Cannabis Cup. We stock the original Sensi Seeds cut in regular form alongside feminized and autoflowering versions. Jack is one legend among many; the others live under cannabis seeds.
Auto Jack Herer (Advanced Seeds) feminized
Auto Jack Herer, just like its predecessor, boasts with an extraordinarily high resin production and good yields in the range of 400-500g/m² after only 65-70 days. With a THC level of 15%, Auto Jack Herer is one of the stronger autoflowering varieties. Dense long buds with an aroma and taste of spices and woods.
Critical Jack Herer (Delicious Seeds) feminized
Critical Jack Herer is a compact, very robust and productive 80% Sativa/20% Indica hybrid with a superb resin production. Critical Jack Herer develops a nice ramification and boasts about a yield of 450-500g/m². The bittersweet flavor with a sour aftertaste with notes of fine hardwood and incense heralds a nicely balanced inebriation. Boasts about a THC level of 20%.
Jack Herer Auto (Greenhouse Seeds) feminized
Jack Herer is a name recognised across the global cannabis community. Signifying both the title of the renowned cannabis activist, as well as a hearty sativa hybrid, Jack Herer Auto is the newest addition to this famed family. Reliable and speedy growth meets large yields of sumptuous sativa flowers boasting a balanced mind-body high. In just nine weeks, all these spoils are yours to enjoy.
Jack Herer Autoflower (Zamnesia Seeds) feminized
The result of mixing the iconic strain Jack Herer with that of a Ruderalis, Zamnesia Seeds have created an autoflowering phenom worthy of the same adulation and respect as the original strain. This feminized version (though compact) boast substantial yields of both quantity and quality - ready in just 10 weeks!
Jack Herer (Sensi Seeds)
Jack Herer by Sensi Seeds is an award-winning hybrid that usually comes in the form of a sativa-dominant phenotype. The top-tier genetic material contained in Jack Herer is responsible for its amazing characteristics, ensuring fast flowering and heavy yields along with an incredible smell and high-potency buds. The...
Critical Jack Herer Auto (Delicious Seeds) feminized
The Critical Jack Herer Auto is a real dream for growers who prefer autoflowering strains. It has everything you could hope for: a vigorous growth, well-developed branching and of course an abundant flower production. Add to this the complex aroma and taste, plus the well-balanced effects and you will never want anything else in your grow room.
Original Auto Jack Herer (FastBuds) Feminized
FastBuds’ Original Auto Jack Herer is the autoflowering variant of the prize-winning Jack Herer, a sativa that has gained as much renown as its famous namesake. She is remarkably potent and brilliantly represents both indica and sativa characteristics, giving a pleasant and balanced high. Original Auto Jack...
Jack Herer (Vision Seeds) feminized
Jack Herer is one of the legends you can't miss out on. Sativa power for any Sativa lover.
Jack Herer (Greenhouse Seeds) feminized
This is Greenhouse Seeds' tribute to the marijuana activist Jack Herer. They took a Haze and crossed it with Red Skunk, resulting in a very potent and high yielding variety. With Jack Herer weed you can effectively reduce pain and stimulate appetite. Jack Herer yields up to 800g/m² after 8 weeks and boasts with a...
Jack Herer Autoflower (Sensi Seeds) feminized
The Emperor is back, and this time he's faster than ever before! Enjoy authentic Jack Herer flowers in express time with this compact auto seed from Sensi Seeds. Bred from all-star genetics, Jack Herer Autoflower is a bushy hybrid that produces exceptional flower in as little as 65 days. What are you waiting for? Order your seeds now and get to harvest ASAP!
The Man, the Strain, the Seeds: Jack Herer
Few strains carry a name with this much weight. Here's who Jack Herer was, what the strain does, and which of our ten versions belongs in your tent.
Who was Jack Herer?
Jack Herer was the American activist whose 1985 book The Emperor Wears No Clothes became the bible of cannabis legalisation. Sensi Seeds honoured him in the Netherlands in the nineties with a strain that went on to collect multiple High Times Cannabis Cups, built on Haze crossed with Northern Lights #5 and Shiva Skunk.
Effects and flavour
The high is the strain's signature: clear, cerebral and creative, a thinker's buzz rather than a heavy blanket. Where Sour Diesel runs on fuel, Jack runs on pine and pepper: grind a bud and terpinolene throws out fresh forest, cracked peppercorn and a sweet edge that lingers.
Growing Jack Herer seeds
The photoperiod versions flower in 8-10 weeks, and Greenhouse Seeds' cut is the yield headline at up to 800 g/m². The autoflowering versions run from seed to harvest in 8-11 weeks. One honest note: the original Sensi cut comes as regular seeds, so plan on sexing your plants and pulling the males.
How the versions compare
| Version | THC | Type | Time |
|---|---|---|---|
| Jack Herer Autoflower (Zamnesia Seeds) | 16% | Auto | 10-11 weeks from seed |
| Jack Herer (Sensi Seeds) | Not listed | Regular | 9-10 weeks flowering |
| Jack Herer (Greenhouse Seeds) | 21% | Feminized | 8-9 weeks flowering |
| Original Auto Jack Herer (FastBuds) | 21% | Auto | 9-10 weeks from seed |
| Critical Jack Herer (Delicious Seeds) | 20% | Feminized | 9-10 weeks flowering |
Which one would we pick?
For heritage, the original Sensi Seeds regular is the collector's choice. For an easy first run, our own Jack Herer Autoflower carries over 100 grower reviews at a mellow 16% THC. And if you want Jack's head with more weight on the scales, Critical Jack Herer folds Critical genetics into the mix.
Why buy Jack Herer seeds here?
Ten versions, three seed types, every packet fresh from cold storage and shipped discreetly. The grid below shows live stock.
Jack Herer seeds FAQ
- Why is the strain called Jack Herer?
It honours the American activist and author of The Emperor Wears No Clothes. Sensi Seeds named the strain after him in the nineties, with his blessing.
- Is Jack Herer a sativa or an indica?
Sativa-dominant in most versions, built on Haze with Northern Lights #5 and Shiva Skunk. The effect is clear, cerebral and creative.
- How strong is Jack Herer?
The numbered versions run 15-21% THC: moderate by modern standards, which is exactly why the high stays so clear.
- Are there autoflowering Jack Herer seeds?
Six of our ten versions are autos, from our own 103-review Jack Herer Autoflower to FastBuds' Original Auto at 21%.
