
Description
Mac 'n' Jack R1 Feminized brings together two heavy-hitters: the creamy, resin-drenched MAC 1 and a true cut of 1994 Jack Herer, one of the most celebrated sativas in cannabis history. The result is a sativa-dominant cultivar with very high THC potency above 25%, expressing an aromatic blend of ripe fruit, fresh pine, and warm wood. Effects lean energetic and cerebral in the Jack Herer tradition, layered with the dense, euphoric weight that MAC 1 is known for.
Ethos Genetics has built Mac 'n' Jack R1 as a feminised photoperiod variety, removing guesswork from the grow room. Flowering runs 9 to 11 weeks, a window that suits both experienced indoor cultivators and those planning a full outdoor season with a long warm autumn. Indoor gardens can expect well above 600 grams per square meter, while outdoor plants given room to stretch can push beyond 750 grams each. Plants grow large, so training techniques like topping, LST, or SCROGing are worth planning early to manage canopy height and maximise light penetration. A rewarding choice for any grower ready to give it the space it deserves.
Mac 'n' Jack R1 Feminized Seeds
Description:
A sativa-dominant cross of MAC 1 and 1994 Jack Herer, Mac 'n' Jack R1 from Ethos Genetics delivers very high THC alongside a compelling fruity, piney, and woody profile that honors both sides of its prestigious lineage.
Best For
Intermediate to experienced growers chasing a potent, uplifting cerebral high
- Type
- Feminised – Photoperiod
- Genetics
- MAC 1 x 1994 Jack herer
- THC / CBD
- Very High THC (25%+) / Low CBD (0-1%)
- Effects
- Energetic,Uplifting
- Flavour / Aroma
- Fruity,Piney,Woody
- Height
- Large
- Yield
- Very High Yield (above 750gr/plant) / Very High Yield (above 600gr/m2)
- Flowering Time
- 9 to 11 weeks
- Difficulty
- Moderate to Advanced
FAQ
All you need to know
about this product
Mac 'n' Jack R1 brings the legendary 1994 Jack Herer lineage and MAC 1 resin together in one high-yielding feminised package, ready for growers who demand the best.
The effects lean strongly toward the energetic, cerebral tradition Jack Herer is famous for, elevated by the dense, euphoric weight that MAC 1 contributes. With THC testing above 25%, this is a potent, uplifting experience best suited to those with some tolerance already established.
Mac 'n' Jack R1 is rated moderate to advanced in difficulty, so first-time growers may find it a stretch. It rewards intermediate and experienced cultivators who understand canopy management and environmental dialling, particularly given the large plant height it can reach.
Under optimised indoor conditions, Mac 'n' Jack R1 is capable of exceeding 600 grams per square metre, which puts it firmly in the very high yield category. Flowering runs between 9 and 11 weeks, giving you some flexibility depending on how far you want to push the terpene and resin development.
The nose blends ripe, fruity sweetness with sharp fresh pine and a warm woody undertone — a direct reflection of its MAC 1 and Jack Herer parentage. That aromatic complexity carries through into the flavour, making the experience as interesting on the palate as it is in effect.
You Might Also Like
Discover more
legendary genetics
Explore handpicked strains with similar flavors and traits — perfect for your next grow.

Peach Crescendo RF3 Auto Feminized Seeds
A fruit-forward autoflower with serious potency behind it, Peach Crescendo RF3 from Ethos Genetics layers ripe peach aromatics over a fuel-driven depth, with verified THC above 25 percent.

OG Kush Auto Feminized Seeds
A resinous indica-sativa hybrid from Ethos Genetics, OG Kush Auto brings classic '92 OG Kush heritage to an autoflowering format, delivering sharp pine and spice with a grounding, euphoric effect.

10th Planet R1 Feminized Seeds
A resin-drenched indica-leaning hybrid from Ethos Genetics, 10th Planet R1 delivers a complex fusion of grape, citrus, and thick skunky spice alongside a heavy, enveloping effect and exceptional yields.