CANNALIB · STRAIN DOSSIER · SOUR GRAPE
Sour Grape
4 independent sources put THC at 18%; 238 flower lab samples give a 10th to 90th percentile band of 13.8 to 24.5%; 8 recorded parents; 8 recorded descendants. It placed in results from High Times Cannabis Cup (United States).
Sour Grape is a hybrid cannabis strain bred by Lineage Genetics. Lab tests put its THC between 13.8 and 24.5% (the middle 80% of 238 flower samples), with CBD around 0.1%. The terpenes most often reported are Linalool, beta-Myrcene, Caryophyllene Oxide. Recorded parents: C4 Ibl × Grandaddy Purple × Granddaddy Purple × Grape Punch × Sour Bubble × Sour Diesel × Sour Kush × Vortex. Stated flowering time 58 to 63 days. 1 cup placing on record, 1 verified against published results.
● frozen 2026-09-29 · API 0.7.1-stdlib
● evidence bar: thc 4 independent sources
● type: hybrid
18%
THC, most-agreed claim
4 independent sources
13.8–24.5%
Flower lab range
10th to 90th percentile of 238 samples
8
Recorded parents
with sources, never guessed
8
Recorded descendants
through stated parent links
1/1
Cup results, verified/total
placings found in published results
6
Pictures on record
shown with source and credit
CHEMISTRY, CLAIM BY CLAIM
Every THC claim, and who made it.
| THC | Independent sources | Who states it |
|---|---|---|
| 18% | 4 | cannlytics_expand, leafly_flat, cropking, leafly_flat_enrich, medical_effects |
| 13.9% | 2 | replication_data, smith_phytochem_sample |
| 14.4% | 2 | replication_data, smith_phytochem_sample |
| 16.2% | 2 | replication_data, smith_phytochem_sample |
| 16.4% | 2 | replication_data, smith_phytochem_sample |
| 20.8% | 2 | or_prr00150, seedfinder |
| 0.6% | 1 | steep_hill_chemotypes_zenodo_3986252 |
| 0.8% | 1 | steep_hill_chemotypes_zenodo_3986252 |
| 2.5% | 1 | wa_wslcb_leaf_new |
| 0.3% | 1 | wa_wslcb_leaf_new |
| 1.2% | 1 | steep_hill_chemotypes_zenodo_3986252 |
| 6.5% | 1 | replication_data |
Lab range 13.8 to 24.5% THC is the 10th to 90th percentile of 238 flower lab samples, median 18.6%; CBD 0 to 0.3% over 141 samples.
top terpenes by stated value: Linalool, beta-Myrcene, Caryophyllene Oxide, alpha-Humulene, beta-Caryophyllene, alpha-Pinene
534 chemistry rows on record. Flagged rows never used as potency: 204 non flower, 36 quality flagged, 0 percent outliers.
GROW CLAIMS
Height and flowering, as stated.
| Height | Independent sources | Who states it |
|---|---|---|
| 80 to 120 cm | 2 | seedcity, seedcity_local |
| 152 to 244 cm | 1 | cropking |
| Flowering | Independent sources | Who states it |
|---|---|---|
| 58 to 63 days | 2 | seedcity, seedcity_local |
| 56 to 70 days | 1 | cropking |
| 52 days | 1 | seedfinder |
| 53 days | 1 | seedfinder |
| 55 days | 1 | seedfinder |
LINEAGE
Recorded parents, and how many sources agree.
| Parent | Sources | Who states it |
|---|---|---|
| C4 Ibl | 1 | seedfinder |
| Grandaddy Purple | 1 | strain_fact:master |
| Granddaddy Purple | 1 | strain_fact:allbud |
| Grape Punch | 1 | seedfinder |
| Sour Bubble | 1 | seedfinder |
| Sour Diesel | 1 | strain_fact:allbud,master |
| Sour Kush | 1 | seedfinder |
| Vortex | 1 | seedfinder |
8 descendants through recorded links, including Grape Berry Hash Plant 12, Grape Candy, Grape Dream, Blueberry Shortcake, Padkos, Purple Superdawg, Zululand Sour, Blueberry Shortcake Feminized.
COMPETITIONS AND AWARD CLAIMS
Cup results with sources; claims with verdicts.
| Year | Competition | Category | Place | Checked |
|---|---|---|---|---|
| 2011 | High Times Cannabis Cup (United States) | Hybrid Cup | 1st | verified |
Award claims checked 0 confirmed · 4 unchecked. Only confirmed claims count as results.
| Claim | Year | Source | Verdict |
|---|---|---|---|
| 1 | Indica Cup | Indica Cup | 2023 | 2023 | archive.org | unchecked |
| Best Hybrid | 2011 | 2011 | archive.org | unchecked |
| Medical Cannabis Cup | not stated | runner:brain-data-staging-book-cannabis- | unchecked |
| 1ST Place HSIBRiD | not stated | archive.org | unchecked |
PICTURES, WITH CREDIT
6 pictures on record. Three shown, each with its source.
credit: cropkingseeds.com · shown with credit, copyright unverified
credit: seedfinder.eu · shown with credit, copyright unverified
credit: allbud.s3.amazonaws.com · shown with credit, copyright unverified
How to read this page
Every value is a stated claim with its sources. Where sources disagree all claims are listed. The lab range is the 10th to 90th percentile of flower lab samples and is never blended with seed-bank claims. Parents are recorded links, never guessed. Pictures are shown with their source and credit; copyright is unverified. Nothing on this page was invented, averaged across sources or merged from another name.
Aliases on record: Sour Grape, sourgrape, 018NY6XC00VT7VJZSY050WVTAV
Live card in the explorer → · Machine-readable record (API) → · Honesty rules →
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dossier sour-grape · frozen 2026-09-29 · published by CannaLib, a Plausible Deniability project · Cite as: CannaLib (2026). Sour Grape strain dossier. https://cannalib.org/strains/sour-grape/