A strain guide that shows its work
WeedDB is an independent guide to cannabis strains for people in Canada. We explain what's known about each strain, show where it came from, and say plainly when something isn't known.
How a strain guide is made
Each full guide starts with research across published sources: strain databases, breeder pages, lab results and, where they exist, scientific papers. We look for at least two independent sources before stating a fact, and our longer articles, like the guides to indica vs sativa and THCA, list their sources at the end.
Family trees go in only when they're documented. When breeders or databases disagree about a strain's parents, its origin or even its type, the guide tells you who says what instead of picking a winner.
How popularity works
The strain list is ordered by popularity, which on WeedDB means how often people search for each strain. It's a simple, outside measure of interest, and nobody can pay to change it. We use the order, not the raw numbers.
The most searched strains get full guides first, and more are added every week. Strains without a full guide yet show only what we know: the name and, where it's listed, the type.
What we won't do
We won't make health claims or tell you a strain will fix anything. Canadian law limits that kind of promotion, and it wouldn't be honest anyway: the same strain name can feel different from one product, batch or person to the next.
We won't invent numbers either. If a terpene profile or THC figure hasn't been published, the page says so.
Using WeedDB well
Treat a strain guide as a starting point, then trust the label on the product in front of you. Our guide to reading cannabis labels explains what the numbers mean, and indica vs sativa covers why those words tell you less than you'd think.
WeedDB is for adults of legal age: 19 in most of Canada, 18 in Alberta and 21 in Quebec.
About WeedDB
Is WeedDB a store or a dispensary?
No. WeedDB is a guide. It doesn't sell cannabis, take orders or deliver anything.
Do brands or stores pay to be featured?
No. Strains are ordered by how often people search for them, and nobody can pay to change that order or what a guide says.
Why do some strains say the family tree is not well documented?
Because it isn't. Plenty of popular strains have disputed or unknown parents. When reliable sources don't agree, we would rather say so than guess.
Why don't the guides say what a strain is good for?
Canadian law limits health claims about cannabis, and the honest truth is that strain names don't reliably predict how a product will feel. The guides describe what people report and leave the promises out.
Why do the THC numbers on WeedDB differ from my product?
Every batch is different. WeedDB shows the range published lab results and listings usually give, while the label on a legal Canadian product shows the numbers for that exact batch.