HYBRID · Mexican

Viper

THC

18.7–21.1%

CBD

0.4%

Breeder

John Sinclair Seeds

Viper is a tall, sativa-dominant hybrid rooted in Mexican landrace genetics, easy to grow with THC between 18.7% and 21.1%.

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Viper traces back to Mexican landrace stock, and John Sinclair Seeds' version keeps that heritage front and center in a hybrid that runs 90 percent sativa against just 10 percent indica. That lineage shows in the plant's stature alone, growing tall indoors and demanding some headroom from anyone running it in a standard tent. THC lands between 18.7 and 21.1 percent, a solid range for a landrace-derived cultivar. Flowering wraps in eight to nine weeks, quick for a sativa-dominant plant of this height, and the easy grow rating means it does not punish beginners for taking it on. There is something appealing about growing a strain this directly connected to an old-world landrace rather than a long chain of modern hybrid crosses, and Viper delivers that connection without an unreasonable grow difficulty.

This is aggregated, user-reported information from third-party sources, not medical advice. Cannabis affects everyone differently — talk to a doctor about your own health needs, and always follow the law where you are.