THC
18%
CBD
0.5%
Union Jack is a sativa from Sagarmatha Seeds testing up to 18% THC with a 9-10 week flowering time.
No effect, terpene, flavor or medical-use data specific to Union Jack has been published yet, so we don't guess. For what sativa strains usually do, see the effects guide.
THC in this profile
18% THC
Growing Information
Flowering Time
9–10 weeks
About Union Jack
Union Jack has been part of Sagarmatha Seeds' catalog as a sativa with a THC ceiling of 18 percent, a moderate figure that keeps it accessible rather than overwhelming. Flowering runs nine to ten weeks, a timeline on the longer side for many hybrids but fairly typical for a sativa-leaning plant that needs the extra weeks to fully develop its structure and finish its buds. The name carries a distinctly British flavor of its own, fitting for a breeder whose catalog often nods to specific regional identities. For growers who already know Sagarmatha's breeding style and are planning a season around a sativa with predictable, moderate numbers rather than extremes in either direction, Union Jack offers a straightforward option to fold into a rotation without much guesswork about how long it will hold a spot in the flowering room.
Where to Buy Seeds
We may earn a commission from purchases made through these links.
Frequently Asked Questions about Union Jack
Is Union Jack an Indica, Sativa, or Hybrid?
Union Jack is classified as a sativa cannabis strain.
What cannabinoid content is reported for Union Jack?
Union Jack: 18% THC and 0.5% CBD reported in our data. The THC figure, when present, is the upper end of the reported range, not a typical measured dose. Potency can vary across harvests, phenotypes, and growing conditions.