A fact-checked cannabis encyclopedia

What everyone says about cannabis is mostly wrong.
So we check the claims that matter.

Every article is sourced, evidence-labeled, and reviewed for unsupported claims, weak science, disputed lineage, and cannabis marketing folklore.

Our promise

Every claim is labeled strong evidence, weak evidence, or anecdote — because the difference matters.

If the science is murky, we say so. If a strain's lineage is disputed, we show the dispute. If a "fact" everyone repeats turns out to be marketing, we name it.

Each page goes through a structured fact-check pass and stays open to correction as laws, research, and product claims change. No black boxes.

759
Encyclopedia articles
6,164
Cited sources
761
Fact-check passes
1 hour ago
Last article published

This week on Weedpedia

Recently added

Browse all →
Strain

Purple Shake

An obscure purple-leaning cultivar with thin documentation, mostly traded as a novelty phe...

Glossary

Cannabis Lounge License

A regulatory permit that lets a business host on-site cannabis consumption, distinct from...

History

Cannabis in 1960s American Music

How rock, folk, and soul artists of the 1960s brought marijuana out of the jazz undergroun...

Glossary

Head High

Slang for a cannabis effect concentrated in the head — alert, talkative, idea-driven — as...

Cultivation

Soilless Mixes

Peat, coco, and perlite-based growing media that behave more like hydroponics than soil, g...

Legal

Cannabis Advertising Restrictions in the Netherlands

How Dutch law restricts coffeeshop and cannabis-product advertising despite the country's...

Strain

Tropical Dawg

A hybrid crossing Tropicanna Cookies with Stardawg, marketed for citrus-fuel aromas and ba...

Glossary

Mid

Slang for mid-grade cannabis — flower that's not garbage, not boutique, just average.