THC Strains — every major THC variety at a glance
THC strains are the classic cannabis varieties high in tetrahydrocannabinol — psychoactive, versatile, with distinct Indica, Sativa or hybrid profiles. This hub links to every major strain in our encyclopedia.
THC strains usually contain 15–28% THC and form the backbone of global cannabis culture. In Switzerland they are only legally accessible through the controlled pilot trials or a medical cannabis prescription — but CBD versions (< 1% THC) of many of these genetics are freely sold.
What is a THC strain?
A THC strain is a cannabis variety whose main active compound is THC (tetrahydrocannabinol). Typical values are 15–28% THC at under 1% CBD.
Within the group you'll find Indica (relaxing, physical), Sativa (energetic, cerebral) and hybrids — each with different terpene profiles that shape aroma and effect.
All THC strains in our encyclopedia
Click a strain for the full profile (genetics, effects, terpenes, FAQ):
OG Kush (19–26 % THC / < 1 % CBD) · Gelato (20–26 % THC / < 1 % CBD) · Blue Dream (17–24 % THC / < 1 % CBD) · Sour Diesel (20–25 % THC / < 1 % CBD) · Amnesia Haze (20–25 % THC / < 1 % CBD) · Gorilla Glue #4 (25–30 % THC / < 1 % CBD) · Jack Herer (18–24 % THC / < 1 % CBD) · White Widow (18–25 % THC / < 1 % CBD) · Girl Scout Cookies (20–28 % THC / < 1 % CBD) · Northern Lights (16–22 % THC / < 1 % CBD) · Wedding Cake (22–27 % THC / < 1 % CBD) · Zkittlez (18–23 % THC / < 1 % CBD) · Runtz (23–29 % THC / < 1 % CBD) · Biscotti (21–25 % THC / < 1 % CBD) · Do-Si-Dos (22–28 % THC / < 1 % CBD) · Pineapple Express (18–25 % THC / < 1 % CBD) · Granddaddy Purple (17–23 % THC / < 1 % CBD)
How to pick the right THC strain
For evenings, sleep or pain: Indica-dominant strains like OG Kush, Northern Lights, Granddaddy Purple or Wedding Cake.
For daytime creativity and energy: Sativa-dominant strains like Jack Herer, Sour Diesel or Amnesia Haze.
Legal status in Switzerland
THC-rich cannabis flower (> 1% THC) is not freely sold in Switzerland. There are two legal pathways:
1. Controlled pilot trials (Basel, Zurich, Geneva…) — time-limited studies for enrolled adults. 2. A medical cannabis prescription since the 2022 BetmG revision — no FOPH permit needed.
FAQ
What is the strongest THC strain?
Top phenotypes of Gorilla Glue #4, Wedding Cake or GSC reach 25–30% THC. Day-to-day, 18–24% is already very potent.
Which THC strain is best for sleep?
Indica-dominant strains rich in myrcene — Granddaddy Purple, Northern Lights, OG Kush or Wedding Cake.
Are THC strains legal in Switzerland?
Only via the pilot trials or a medical prescription. CBD versions of the same genetics (< 1% THC) are freely sold.
THC Strains: List, Effects & Best Varieties (2026) — Switzerland