Sour #29
A boutique sour-forward hybrid with murky lineage, prized on social media but poorly documented in any verifiable breeder record.
Sour #29 is a name that circulates on strain databases and dispensary menus, but there is no reliable breeder documentation, no published chemotype data, and no peer-reviewed anything on it specifically. What you'll read online is mostly marketing copy repackaged across sites. Treat lineage claims, THC percentages, and effect descriptions as unverified. If you like a jar labeled Sour #29 from a specific grower, buy that jar again — don't assume another grower's Sour #29 will match.
Overview
Sour #29 is a strain name that appears on consumer strain databases and occasional dispensary menus, generally described as a sour-diesel-adjacent hybrid. Unlike well-documented cultivars such as Sour Diesel or Chemdog, Sour #29 has no verifiable breeder of record, no seed bank release notes accessible in public archives, and no published chemistry data No data.
The '#29' in the name suggests a pheno-hunt selection — the twenty-ninth plant from a numbered batch — which is a common naming convention among small breeders (e.g., Cookies' numbered cuts). But without a documented origin, we cannot confirm who did that pheno hunt, from what parents, or when.
Chemistry
No independent lab dataset (Leafly's terpene reports, Confident Cannabis aggregate data, or peer-reviewed chemotyping) publicly identifies Sour #29 as a distinct chemotype No data.
What we can say generally: strains in the 'sour' family (Sour Diesel, Sour Bubble, East Coast Sour Diesel) tend to show caryophyllene, myrcene, and limonene as dominant terpenes, with variable amounts of terpinolene and ocimene depending on cut [1][2] Weak / limited. Total THC in modern flower averages around 18–22% across the U.S. legal market [3] Strong evidence, and any Sour #29 sample is likely to fall in that range simply because that's where the market sits — not because of anything special about this cultivar.
Ignore any source claiming a specific THC or terpene percentage for Sour #29 unless they show you a COA (certificate of analysis) from a specific batch. Cannabinoid and terpene content varies more between grows of the same strain than between many different strains [1][4] Strong evidence.
Reported effects
There is no strain-specific clinical evidence for Sour #29 — or, honestly, for almost any named cannabis strain [4][5] Strong evidence. User reports on consumer sites describe it as energizing, talkative, and 'sativa-leaning,' but these descriptions are indistinguishable from generic sour-family marketing copy.
The indica/sativa/hybrid framework does not reliably predict effects; chemical composition (cannabinoids and terpenes) plus dose, tolerance, set, and setting do most of the work [4][5] Strong evidence. If you want to predict how a jar of Sour #29 will hit, the label lineage tells you very little. A batch COA tells you more.
Lineage
Lineage for Sour #29 is disputed and largely undocumented Disputed. Common online claims include:
- A Sour Diesel phenotype selection
- A Sour Diesel × unknown cross
- An unrelated small-breeder project that happens to share the 'sour' descriptor
None of these are backed by a verifiable breeder statement, seed bank listing with provenance, or documented pheno hunt. The broader Sour Diesel family itself has famously contested origins — the original cut's parents (Chemdog 91, Massachusetts Super Skunk, DNL, etc.) are still argued about by growers who were there [6] Disputed. Adding another undocumented descendant on top of that is a shaky foundation.
If you see a confident lineage diagram for Sour #29, ask where it came from. In most cases, it's copied from one strain database to another without a primary source.
Cultivation basics
There are no verifiable grow reports for Sour #29 from established seed banks or documented cultivators. Anything specific you read about its flowering time, stretch, yield, or nutrient preferences is extrapolation, not measurement No data.
General guidance for sour-family hybrids: expect 8–10 weeks of flowering, moderate-to-tall stretch (Sour Diesel lineage is notoriously stretchy), and a pungent, fuel-forward aroma late in flower that requires serious carbon filtration Weak / limited. If you are buying clones or seeds sold as Sour #29, ask the vendor for the mother's provenance — and don't be surprised if they can't provide one.
Marketing vs. reality
The honest picture:
- Marketing claim: 'A rare, potent sativa-leaning sour hybrid, 24% THC, energizing daytime strain.'
- Reality: The name has no documented breeder, no published chemistry, and no clinical basis for the effect claims. THC percentages on dispensary labels are frequently inflated versus third-party retests [7] Strong evidence.
This doesn't mean Sour #29 flower is bad. A specific grower's Sour #29 might be excellent. It means the name isn't doing the work people think it is. Two jars labeled Sour #29 from different growers may be genetically different plants and will almost certainly have different chemotypes.
Buy based on the grower, the harvest date, the COA, and how the flower actually smells and smokes — not the strain name on the sticker.
Sources
- Peer-reviewed Smith CJ, Vergara D, Keegan B, Jikomes N. (2022). The phytochemical diversity of commercial Cannabis in the United States. PLOS ONE 17(5): e0267498.
- Peer-reviewed Reimann-Philipp U, Speck M, Orser C, et al. (2020). Cannabis chemovar nomenclature misrepresents chemical and genetic diversity. Cannabis and Cannabinoid Research 5(3).
- Government National Institute on Drug Abuse (2024). Cannabis (Marijuana) DrugFacts — potency trends.
- Peer-reviewed Watts S, McElroy M, Migicovsky Z, Maassen H, van Velzen R, Myles S. (2021). Cannabis labelling is associated with genetic variation in terpene synthase genes. Nature Plants 7: 1330–1334.
- Peer-reviewed Piomelli D, Russo EB. (2016). The Cannabis sativa versus Cannabis indica debate: an interview with Ethan Russo, MD. Cannabis and Cannabinoid Research 1(1): 44–46.
- Reported Bienenstock D. (2019). The Contested Origin of Sour Diesel. High Times / long-form reporting on East Coast diesel lineage disputes.
- Peer-reviewed Jikomes N, Zoorob M. (2018). The Cannabinoid Content of Legal Cannabis in Washington State Varies Systematically Across Testing Facilities and Popular Consumer Products. Scientific Reports 8: 4519.
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