Netherlands · founded 1993
TH Seeds
TH Seeds is the Amsterdam seed bank founded in 1993 by Adam Dunn and Doug, two American expats who relocated to the Netherlands and built the operation around a small core of imported US genetics including the original Indiana Bubble Gum. The breeder released the first widely distributed feminized Bubblegum seed in the mid-1990s and remains the most-cited source for that lineage in European catalogues. TH Seeds also runs the SAGE (Sativa Afghani Genetic Equilibrium) family that anchored a substantial slice of the late-1990s and 2000s sativa-hybrid market in Amsterdam coffeeshops. The Hash Marihuana Cannabis Museum's research collection holds several preserved TH Seeds cuts, which doubles as institutional documentation of the breeder's work. Modern TH Seeds catalogue runs about fifty active strains with a tight focus on heritage lines rather than chasing trend-strain releases.
Reviewed 2026-05-23
Notable releases
Bubblegum · SAGE · MK-Ultra · Heavy Duty Fruity · Burmese Kush
Timeline
1993
Founded
Library
Key release: Bubblegum
Today
Active in catalogue
Related breeders
TH Seeds FAQ
- What are TH Seeds's most famous strains?
- TH Seeds is best known for Bubblegum, SAGE, MK-Ultra, which is the work the breeder is most often credited with in cannabis publications. The full catalogue carried in the Lockbox library covers additional releases that share the same lineage backbone and are listed on this page.
- Is TH Seeds still active?
- TH Seeds operates out of Netherlands, with the program tracing back to 1993. The breeder remains in active rotation within the Lockbox library, and the strain list on this page is updated as new releases are documented.
TH Seeds strains in the library
See related: documented cup winners · strains by decade · breeders by country.