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.

765
Encyclopedia articles
6,204
Cited sources
767
Fact-check passes
14 minutes ago
Last article published

This week on Weedpedia

Recently added

Browse all →
Glossary

Rinsing Coco

The practice of flushing coco coir with water (often plus calcium) before planting to remo...

Cultivation

Supercropping During Seedling Stage

Why supercropping a seedling is almost always a mistake, and what to do during the seedlin...

History

Cannabis Literature in the Caribbean During the 1930s

How colonial reports, sensational press, and early ethnographic writing shaped how the Bri...

Strain

White Monster

A lesser-known White-family hybrid with murky lineage, modest documentation, and a lot of...

Cultivation

Lollipopping During Ripening

A late-stage defoliation and lower-branch removal technique that growers use to push energ...

History

Cannabis Music in the United States During the 1990s

How hip-hop, alt-rock, and reggae fusion turned weed from countercultural symbol into main...

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...