The truth about cannabis (myths & facts)

Common claims fact-checked – with sources instead of gut feeling.

Macro shot of a bud densely covered in resin glands (trichomes) – Aug 2025 – Black Apple Hitchcock, Fruit Punch and Passion Fruits, ready for harvest — From Flo’s grow: Aug 2025 – Black Apple Hitchcock, Fruit Punch and Passion Fruits, ready for harvest Photo: Flo

There are many myths about cannabis – from both sides: playing it down as well as scaremongering. Here I take a close look at common claims and show what the studies say.

Articles in this category

The G13 Dossier: CIA Super-Strain or Afghanica Clone? Myths, Facts & Whether the Original Genetics Surviveonline
PGR Weed Explained: Why Rock-Hard Synthetic Buds Are Low-Quality and Hazardousonline
Purple, Red, Blue or Black Buds: Why Do Cannabis Plants Change Colour in Flower?online
Cannabis Trichomes: How Resin Glands Develop, What Genetics Dictate & How to Boost Resinonline
Light & Spectrum: What Do Lumens Mean, Why Do Indoor Lamps Use Blue/Red/Violet Instead of Sunlight & Does Under-Canopy Light Really Work?online
“CBD makes THC harmless” – is that true?online
“Indica always makes you sleepy, sativa always wakes you up”online
“More THC is always better”planned
Can you become addicted to cannabis?planned
Is cannabis a “gateway drug”?planned

Flo’s View on This Category

Testing Grow Myths Against Plant Physiology & Nature

Few hobbies have as many urban legends as cannabis – from the CIA myth around G13 and 48-hour darkness rituals to rock-hard PGR weed. My rule “Understand nature, then copy nature” filters out bro-science immediately: anything that tortures vascular tissue or ignores plant physiology does more harm than good.