Library pick
Highest THC cannabis strains in the Lockbox library
Cannabinoid potency is one of the most-misreported numbers in cannabis catalogues, so the figures used here come from breeder-published ranges that have been cross-checked against lab data where it is publicly available. The strains below are ranked by typical THC percentage rather than by the absolute maximum on a chart, because typical figures track real-world phenotypes more closely than cherry-picked test results. Documented THC in the library currently ranges from the high teens into the low thirties, and the upper tier is dominated by modern hybrids and a small handful of resin-heavy indica-dominants. Reading a high THC number alone is not enough to choose a cultivar — terpene profile, flowering window, and difficulty all shape the actual experience and grow outcome. The ranking below is descriptive only: each entry's score reflects the typical THC value recorded for that strain in the catalogue.

ILGM Genetics
Gorilla Glue #4
- THC
- 28%
- Flower
- 8-9 wk
- Indoor
- 500g

DNA Genetics
Bruce Banner
- THC
- 27%
- Flower
- 9-10 wk
- Indoor
- 550g
Seed Junky Genetics
Do-Si-Dos
- THC
- 27%
- Flower
- 8-9 wk
- Indoor
- 500g
Reserva Privada
Khalifa Kush
- THC
- 27%
- Flower
- 8-9 wk
- Indoor
- 450g
Seed Junky Genetics
GMO Cookies
- THC
- 26%
- Flower
- 9-10 wk
- Indoor
- 500g
Cannarado Genetics
Apple Fritter
- THC
- 25%
- Flower
- 8-9 wk
- Indoor
- 500g
Reserva Privada
Fire OG
- THC
- 25%
- Flower
- 9-10 wk
- Indoor
- 450g

ILGM Genetics
Girl Scout Cookies
- THC
- 25%
- Flower
- 9-10 wk
- Indoor
- 500g
Showing 8 strains ranked from the library against the criteria above.
How this list is made
Each entry is scored by its documented typical THC percentage as published by the breeder of record, falling back to the upper bound where a typical figure is not recorded. The ordering is computed at build time from the library data and reflects the documented figures in each breeder's catalogue rather than editor opinion.