Romulan Genetics Blacklung (F1)
Blacklung (F1) is engineered for the “terpene champions” of the world—those who crave a profile that is unapologetically loud and remarkably complex. By crossing the frost-laden Mendobreath with the legendary Romulan backbone, Romulan Genetics has created a hybrid that is as much a sensory experience as it is a heavy-hitter.
The Profile: Loud, Acrid, and Elegant
Blacklung is a standout for extraction artists and flavor-chasers, boasting an impressive 4% terpene range even in varied growing conditions. The bouquet is a unique, contrasting fusion: sweet, delicate floral baby’s breath smashed against industrial notes of thick tar, earth, and pungent spice. It is a “viscous” smoke that coats the palate and demands attention.
The Experience
Despite its 75% Indica lineage, Blacklung offers a sophisticated high. It provides a state of profound relaxation and tranquility without the heavy “couch-lock” sleepiness often associated with potent Indica hybrids. It is the perfect choice for unwinding after a long day while remaining mentally present and elated.
Technical Specifications
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Genetics: Mendobreath x Romulan
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Type: 75% Indica / 25% Sativa Hybrid
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Flowering Time: 63–70 Days (Indoor) | October (Outdoor)
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Yield: Above Average to Heavy
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Stretch: 1–2x
Cultivation & Resistance
Blacklung is a “tree-style” grower with typical stretching, making it an accessible and rewarding project for growers of all experience levels.
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Spider Mite Resistance: Above Average
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Thrips Resistance: Above Average
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PM/Botrytis/Cold/Heat: Average
Breeder’s Pro-Tips
Sexual Maturity: Romulan Genetics recommends growing these seeds in the vegetative stage until they reach full sexual maturity (visible stigmas/pistils) before flipping to a flowering light cycle.
Stabilization: For the highest quality results and consistency, stabilization through cloning is recommended. This best practice significantly reduces the risk of environmental stress-induced traits often found when rushing feminized seeds into flower. Always take cuts before flowering—you’ll want to keep the heavy-yielding phenotypes found in this progeny!
Security & Transparency
Every pack of Blacklung comes equipped with a Cannverify security label. By scanning the QR code with your smartphone, you can instantly access:
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Detailed grow information and photos.
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Full lab results, including cannabinoid and terpene breakdowns.
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Verified authenticity of your Romulan Genetics seeds.
6 Feminized Photoperiod Seeds per pack!

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