Leaf Lab: Cannabis Strain Library
Canada's most comprehensive cannabis strain database & library — 100+ verified strain profiles with real THC/CBD data, terpene flavor notes and effects.
Use the filters above or browse the A–Z list below to explore strains by effect, terpene profile or cannabinoid levels.
New to cannabis? Start with our Cannabis Glossary to learn the terms used in strain profiles.
Showing 20 of 508 strains
Purple OG
Purple OG is an indica-dominant strain known for its purple-hued buds and heavy, calming feel. It has a reputation among...

Purple Punch
Purple Punch is an indica-leaning cultivar known for its dessert-like flavour and deeply settling feel. Many users repor...
Purple Urkle
Purple Urkle is a classic indica known for its heavy, couch‑leaning reputation and distinct purple buds. Many users repo...
Qleaner
Qleaner is a hybrid strain that has built a modest reputation for producing clear-headed, balanced effects with a smooth...
Quantum
Quantum is a balanced hybrid often described as delivering a clear-headed lift paired with gentle body relaxation. Many ...
Quantum Kush
Quantum Kush is a sativa-dominant cultivar known for notably high THC potential and a bright, energetic character. Many ...
Querkle
Querkle is an indica-leaning strain commonly noted for purple-hued buds, a sweet grape-and-berry aroma, and a calming, e...
Rainbow Sherbet
Rainbow Sherbet is a sativa-leaning hybrid celebrated for its bright, fruit-forward profile and approachable, upbeat cha...
Raspberry Kush
Raspberry Kush is an indica-dominant strain known for its sweet berry aroma and calming profile. Many users report a smo...
Red Congolese
Red Congolese is a lively sativa known for its bright, uplifting character and clear-headed feel. Many users report ener...
Red Dragon
Red Dragon is a hybrid strain commonly described as berry-sweet with spicy, earthy notes and a balanced effect profile. ...
Red Haze
Red Haze is a sativa-dominant strain often described as bright and cerebral, with uplifting effects that may suit daytim...
Remedy
Remedy is an indica-leaning, CBD-forward strain known for its calm, clear-headed character and very low THC content. Man...
Romulan
Romulan is a classic indica with strong Canadian roots, widely recognized for its pine-forward aroma and deeply settling...
Rosin Berry
Rosin Berry is a hybrid cannabis strain known for its berry-forward aroma, resin-rich buds, and balanced profile. Many u...
Royal Highness
Royal Highness is a balanced hybrid known for its approachable, CBD-forward profile and easygoing reputation. Many users...
RudeBoi OG
RudeBoi OG is an indica-leaning hybrid with classic OG character, offering earthy pine notes, a citrus-diesel edge, and ...

Runtz
Runtz is a balanced hybrid celebrated for its candy-sweet flavour and colourful, resin-heavy buds. Many users report an ...
Russian Assassin
Russian Assassin is an indica-leaning strain commonly described as delivering heavy body relaxation, a calm mental state...
Samoas
Samoas is a hybrid strain with a dessert-like flavor profile and a balanced effect that many users describe as both upli...
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Strain Library: Frequently Asked Questions
Why Use a Cannabis Strain Library?
A well-organized strain database helps you compare varieties based on THC/CBD levels, terpene profiles and effects — especially important in Canada's evolving legal market.
What is a cannabis strain library?
This is a searchable collection of cannabis varieties, each with verified data on THC/CBD, terpene profile, effects and flavour notes. Useful for discovery and comparison.
How accurate is the data in a strain database?
We use verified sources where possible and label each profile with updates. Use data as a guide — effects may vary batch to batch.
What are terpenes and why do they matter?
Terpenes are aromatic compounds found in cannabis that contribute to flavour and may influence the overall experience. Browse our terpenes guide for more.
How should I choose a cannabis strain in Canada?
Consider your desired effect (e.g., relaxation or creativity), THC/CBD levels, terpene profile and legal compliance. Use the filters above or explore strain profiles for details.