Sinsemilla

Definition: Sinsemilla is cannabis from female plants that were never pollinated, so the buds contain no seeds. The name comes from the Spanish “sin semilla,” meaning “without seed.” Because unpollinated plants keep putting energy into resin instead of seeds, sinsemilla is generally more potent than seeded cannabis.

Why Is Sinsemilla More Potent?

When a female cannabis plant isn’t pollinated, it keeps producing flowers and resin-rich trichomes as it “waits” for pollen. That resin is where most of the THC and terpenes are made. Once pollinated, a plant shifts its energy toward making seeds, and seeds also add weight without adding potency.

How Do Growers Produce Sinsemilla?

The key is keeping male pollen away from the females. Growers remove male plants as soon as they show their sex, or avoid males entirely by using feminized seeds or a clone of a female mother plant. Even one stray male or a hermaphrodite plant can pollinate a whole room, so careful monitoring matters.

How Did Sinsemilla Change Cannabis Potency?

Sinsemilla growing spread in the U.S. in the 1970s and 1980s and is now the norm in licensed markets. A study of confiscated U.S. cannabis found average THC rose from about 4% in 1995 to about 12% in 2014, and the authors tied much of that rise to a shift from seeded marijuana to sinsemilla.

Is All Dispensary Weed Sinsemilla?

In practice, nearly all flower sold at a licensed dispensary is seedless, since seeds are seen as a quality defect. Finding a seed in your bud usually means the plant was accidentally pollinated somewhere along the way.

Related terms: Feminized Seeds, Trichomes, Tetrahydrocannabinol (THC), Clone

Sources: ElSohly et al., Changes in Cannabis Potency Over the Last 2 Decades (1995 to 2014), Biological Psychiatry (2016).

Share

Weed and Cannabis Related

  • Strains

  • Decarboxylate

  • THC Topicals

  • Full Spectrum vs. Broad Spectrum vs. Isolate