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.

692
Encyclopedia articles
5,674
Cited sources
693
Fact-check passes
11 hours ago
Last article published

This week on Weedpedia

Recently added

Browse all →
Strain

Shadow Dream

A boutique indica-leaning hybrid with murky lineage claims and very little hard data behin...

History

Medical Cannabis Advocacy in the Middle East During the 1970s

A brief look at what actually happened with cannabis research and policy in the Middle Eas...

Strain

Diamond Sun

A relatively obscure hybrid strain with limited verifiable lineage data and no published c...

Seedbank

Dutch Passion

One of the oldest continuously operating Dutch cannabis seedbanks, founded in the late 198...

Seedbank

Sensi Seeds

Long-running Dutch seed company founded by Ben Dronkers, known for preserving classic cann...

Medical

Cannabis and Opioid Substitution

What the research actually shows about using cannabis to reduce, replace, or taper opioids...

Medical

Why Edibles Hit Different

The pharmacology behind why a 10 mg gummy can feel stronger, longer, and weirder than a 10...

Medical

Cannabis for Muscle Cramps

What the evidence actually says about using cannabis for muscle cramps in MS, ALS, dystoni...