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.

715
Encyclopedia articles
5,845
Cited sources
716
Fact-check passes
23 minutes ago
Last article published

This week on Weedpedia

Recently added

Browse all →
Strain

Orange Tart

A citrus-forward hybrid descended from Tangie lines, popular for terpene-driven flavor rat...

History

Cannabis Prohibition in Australia and New Zealand (1900s)

How two Pacific nations criminalised cannabis with little local evidence of harm, driven m...

History

Cannabis Activism in the Caribbean During the 1950s

How Rastafari communities in Jamaica turned ganja from a criminalized indentured-labor her...

Strain

Rare Cheese

A Cheese-family hybrid marketed for funky dairy aromatics, with a lineage and chemistry le...

Strain

Killer Waffle

A modern dessert-leaning hybrid built on Modified Grapes and The Menthol, more notable for...

Strain

Tangerine Cupcake

A citrus-leaning hybrid with disputed parentage, modest documentation, and a name that pro...

History

Cannabis Literature in East Asia During the 1940s

A look at what was actually written about cannabis in Japan, China, and Korea during a tur...

Strain

Ridge Cookies

A boutique Cookies-family hybrid with limited verifiable provenance and the usual gap betw...