Bruce Banner: the Hulk that wasn't

Word on the street#

Ask around and the story writes itself. Bruce Banner is the scientist who turns into the Hulk, so a strain called Bruce Banner must turn you green and smash your to-do list. Strain guides still tell it that way [5]. It's routinely sold as one of the strongest strains in the world, "around 30% THC".

It's a good story. It's just not the one the breeder tells.

What the record says#

Bruce Banner was bred by Jason Holck of Dark Horse Genetics. In the mid-2000s he crossed Strawberry Diesel with an OG Kush cut and kept the best plants [2]. The name came from a fan at a String Cheese Incident show who started calling him "Bruce Banner" while chasing more of his Strawberry Kush [1]. Basically, a concert-goer's nickname that stuck.

In 2008 Holck opened Delta 9 Alternative Medicine in Denver, one of Colorado's first 20 dispensaries, with Bruce Banner among its first 12 strains. He kept it in-house for about two and a half years before releasing it, and "Bruce Banner drop days" drew queues [1].

Then, in 2016, Oregon's cannabis regulator put Bruce Banner on a list of strain names it said could appeal to children, alongside Girl Scout Cookies and Charlotte's Web [1]. Holck's answer was blunt: the name "was a joke based on my last name" [1]. Holck, Hulk. The comic-book link was a pun, not a promise.

One breeder's joke, 39 sellers#

Fame did to Bruce Banner what it does to every big name: everybody wanted a piece. CannaLib holds Bruce Banner listings from 39 different breeders and seed banks, and 305 strain and product names contain the words Bruce Banner. In Washington's market records from 2018 to 2021 it ranks 54th of 26,118 strain names (the top fifth of one percent), with 96,052 inventory lots, meaning batches on the shelf, sold under it. Holck himself now spends airtime teaching growers to spot fake Bruce Banner seeds [3].

The family tree has drifted too. Most listings repeat Strawberry Diesel × OG Kush, but we count 19 different ways of writing the lineage, including Ghost OG versions, "OG Kush 2004" versions, backcrosses and autoflowers. It's a game of telephone, played by 39 breeders.

Is it really that strong?#

Here the legend mostly holds up. Across 1,834 flower tests, Bruce Banner's median THC is 23.4%. (The median is the middle result: line up every test from weakest to strongest and it's the one in the centre, with half the tests above and half below.) That's higher than either of its stated parents: OG Kush tests at a median 20.0% and Strawberry Diesel at 17.8%. That's unusual. Plenty of famous names test well below their hype.

The "30%" figure is real too, but it sits at the top of the range, not the middle. One test in ten reaches about 30%. Think of 30% as the tallest kid in class: real, but not who you'll usually meet. Sellers' claims lean on that top end: the median claim for Bruce Banner #3 is 30%, against a lab median of 22.9%.

What the DNA says#

A public genotype panel of 2,264 cannabis samples includes several sold under Bruce Banner names [6]. Unlike Pineapple Express, they agree with each other. Samples sold as Bruce Banner, Bruce Banner #3, Banner and Strawberry Diesel OG all measure as one plant: kinship scores of 0.47 to 0.50, the level you'd expect from cuttings of a single mother. (Quick refresher: kinship is a family-resemblance meter that runs from 0, total strangers, to about 0.5, the same plant twice. Above 0.354 counts as the same plant.)

Then there's the sixth member of the family. A sample sold as Scooby Snacks, a name borrowed from a cartoon dog's biscuits, also passes the same-plant test against every Bruce Banner sample. Yes, really. Shaggy would be thrilled.

Scooby Snacks passes, but only just: 0.37 against a line of 0.354, well below the 0.47–0.50 of the Banner samples. It's the kid who scraped into the club by a hair. Its breeder, Archive Seeds, describes Scooby Snacks as Face Off OG × a Platinum Girl Scout Cookies cut [7], and in the panel it also sits close to the Girl Scout Cookies family. Two readings fit: a Bruce Banner cut sold under a cartoon name, or a relative so close it barely clears the bar. One sample can't say which.

Half a family tree#

We also checked the stated parents. A real parent scores near 0.25; below 0.125 doesn't fit. Picture a family reunion. The OG Kush side turns up and looks vaguely like family: 0.14, consistent with a relative. The Strawberry Diesel side doesn't: −0.20, less related than two random samples, as if they'd walked into the wrong party. Ghost OG, named in some listings, scores 0.01.

That doesn't prove the Strawberry Diesel story wrong. The panel's Strawberry Diesel sample is just one plant sold under that name, and Strawberry Diesel itself is a contested strain: its own terpene results are more inconsistent than those of about 95% of strains. Holck's original Strawberry Diesel may simply not be the plant in the panel. CannaLib's evidence on the lineage stays split, close to a coin toss: 8 pieces for Strawberry Diesel × OG Kush, 9 against.

So what is Bruce Banner?#

Put the record and the measurements side by side and Bruce Banner comes out as one of the rare hyped names where the plant mostly lived up to the legend.

So, according to the data, Bruce Banner is a genuinely strong Colorado cut that has mostly stayed itself. The samples agree, the potency is real and tests above both parents, and the OG Kush side of its family tree shows up in the DNA. The legend gets two things wrong. The "30%" is the best tenth of jars, not a typical one. And there was never any Hulk in it, just a breeder with a name that sounds like one, and a concert-goer who noticed.

Oregon flagged the name as one that could appeal to children, to protect them from a superhero. The superhero was never there.