Rosetta Stone XX – Brothers Grimm Seeds

Rosetta Stone XX from Brothers Grimm Seeds is a feminised hybrid created by crossing Jack Herer and Cinderella 99. The result is a flavour-rich, highly potent strain celebrated for its exceptional terpene and THCv production, earning a top 10 placement in High Times 2018. This stunning cultivar brings elite flavour and uplifting energy to any seed collection.


Strain Information

Strain Name: Rosetta Stone XX

Strain Breeder: Brothers Grimm Seeds

Lineage: Jack Herer × Cinderella 99

Genetics: Hybrid (Sativa-leaning)

Seed Type: Feminised

Flowering Type: Photoperiod

Flowering Time: 8–9 weeks

Effect: Creative, smooth, uplifting, party-friendly

Aroma: Cologne, musk, jasmine, anise

Taste: Classic Jack Herer herbal musk with floral spice

Height: Can grow tall; training recommended

Yield: Large yields with solid resinous colas

THC: Very high with notable THCv and terpene content


Strain Description: Rosetta Stone XX delivers dense, shimmering buds overflowing with resin, showcasing the terpene complexity and potency this cross is known for. Her profile combines floral musk, jasmine and anise influences with the unmistakable Jack Herer tang, creating a sophisticated flavour experience. Effects are creative and sociable, promoting smooth, euphoric energy perfect for social environments and upbeat sessions.


Growing Information: This cultivar is vigorous in growth and responds exceptionally well to plant training, producing large cola formations packed with thick bud clusters. She thrives under strong lighting, and spacing or canopy control is recommended to maximise airflow and light penetration. Indoors she completes in 8–9 weeks, rewarding growers with heavy, resinous harvests ideal for both flower and extract production.


Flavour and Aromas: Expect a bold bouquet of cologne-like musk layered with jasmine, herbal spice and subtle anise. Her terpene profile is expressive, aromatic and lingering, making Rosetta Stone XX a standout choice for flavour-driven connoisseurs.


Lineage: Jack Herer contributes creative clarity, floral spice and energetic uplift, while Cinderella 99 strengthens resin output, potency and sweet undertones, producing a well-rounded, celebration-ready hybrid.


Summary: Rosetta Stone XX by Brothers Grimm Seeds is a terpene-loaded, creative hybrid offering very high THC, top-tier flavour and resin-stacked colas. Ranked among High Times’ Top 10 of 2018, she’s a superb choice for growers seeking aroma, potency and social, uplifting effects.


Disclaimer:

All seeds sold at Breeders Collective are strictly intended as souvenirs and for preservation purposes. We do not condone or encourage breaking any laws regarding cannabis. It is your responsibility to research and adhere to the laws in your jurisdiction regarding the purchase, possession, and use of cannabis seeds.