Granddaddy Purple
Marketed as indica. That label describes how it is sold, not its chemistry — the research is clear that it does not predict much.
Also sold as GDP, Grand Daddy Purple, Granddaddy Purps, Grand Daddy Purp.
Across 604 laboratory results, Granddaddy Purple tested between 12.7% and 21.8% THC, with a median of 17.4%. Most sites print a single number here. The spread is the more useful fact.
Laboratory chemistry
Every figure is a median across real lab results, with the middle 80% of those results beside it. A wide range means the same name tested very differently batch to batch.
| Cannabinoid | Median | Middle 80% | Samples |
|---|---|---|---|
| THC | 17.4% | 12.7% to 21.8% | 604 2 sources / about typical |
| CBD | 0.05% | 0.03% to 0.27% | 240 2 sources / about typical |
| CBG | 0.43% | 0.22% to 1.00% | 563 2 sources / below typical |
| CBN | 0.01% | 0.00% to 0.05% | 304 2 sources / above typical |
| CBC | 0.04% | 0.00% to 0.11% | 335 2 sources / about typical |
| THCV | 0.01% | 0.00% to 0.10% | 168 2 sources / about typical |
| Terpene | Median | Middle 80% | Samples |
|---|---|---|---|
| Myrcene | 0.43% | 0.03% to 1.12% | 188 2 sources / about typical |
| Limonene | 0.06% | 0.00% to 0.23% | 188 2 sources / below typical |
| Caryophyllene | 0.27% | 0.05% to 0.57% | 188 2 sources / about typical |
| Terpinolene | 0.01% | 0.00% to 0.03% | 187 2 sources / about typical |
| Pinene | 0.23% | 0.06% to 0.54% | 188 2 sources / above typical |
| Linalool | 0.05% | 0.00% to 0.14% | 187 2 sources / about typical |
| Humulene | 0.08% | 0.02% to 0.21% | 187 2 sources / about typical |
| Ocimene | 0.01% | 0.00% to 0.13% | 187 / about typical |
| Bisabolol | 0.03% | 0.00% to 0.10% | 172 2 sources / about typical |
| Nerolidol | 0.02% | 0.00% to 0.12% | 188 2 sources / about typical |
Reported genetics
Purple Urkle × Big Bud
disputed · bred by Ken Estes
Two incompatible parentages circulate widely: Purple Urkle x Big Bud, and Mendo Purps x Skunk x Afghani. In interview Estes neither confirms nor denies the former, describing instead a preservation and selection of pre-existing Humboldt purple genetics. His 2003 naming and commercialisation are not in dispute. Estes rebranded his own line 'Grand Daddy Purp' to separate it from knockoffs, so the breeder spelling differs from the consumer one.
Source: greenpointseeds.com
What this page does not tell you
- Whether the jar in your hand matches these numbers. Strain names are not standardised, certified or regulated. Research has found samples sharing a name that were as chemically distant from each other as samples with different names.
- How it will make you feel. This site holds no effect data, because no source publishes per-strain effect rates under a licence that permits reuse. An empty column is better than a borrowed guess.
- Anything medical. These are measurements, not claims about what cannabis does to a condition.
Sources
Where two sources cover the same analyte, the figure above is pooled over their combined samples rather than averaged — a median of two medians is not a median. Each source's own sample count is shown in the table.
- Smith, Vergara, Keegan & Kane (2022), The phytochemical diversity of commercial Cannabis in the United States, PLOS ONE · lab · CC0-1.0
- Nevada Cannabis Compliance Board, Lab Library · lab · Public record, no stated restriction
Compare Granddaddy Purple with others
Tried this one?
No one has reported on this strain yet. Yours would be the first. Effect data on this site comes entirely from people who used it, because no source of per-strain effect rates can be licensed at any price. Percentages appear once a strain has enough reports to be worth one.