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Runtz: meaning of the name, origin and the CBD version of the strain

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11 min readUpdated on

Runtz is a cannabis strain launched in California in 2017 by the collective that bears its name, from a cross attributed to Zkittlez and Gelato. The name comes from Runts, an American fruit-shaped candy, and the English word "runt" means an undersized animal. In France, a Runtz CBD is a hemp flower capped at 0.30% Δ⁹-THC: the name refers to a lineage, and the plant sold is not the original one.

Runtz USA CBD flower head with purple tints, photographed on a light background.

In 2020, Leafly, an American cannabis database, named Runtz its strain of the year in the United States (Leafly, consulted on 6 October 2026). Effects are not covered here.

Key takeaways

  • The name "Runtz" is not a translatable word: it refers to Runts candy, and "runt" means an undersized animal in English.
  • First public presentation: December 2017, at the Emerald Cup in Santa Rosa (California).
  • Sources mostly cite a Zkittlez × Gelato cross; the exact lineage remains hard to establish.
  • For a Runtz CBD sold in France, the Δ⁹-THC content and the aromatic profile can be read on the batch analysis, and nowhere else.

Photograph: Runtz USA CBD flower, on sale at Phytogrammes.

What does the name Runtz mean?

Runtz is a proper name, with no direct translation into French. With a final "z", it takes up the name of Runts, a candy that Ferrara sells in the United States: a hard shell, a crumbly centre, the shape and taste of a fruit (Ferrara, consulted on 6 October 2026).

The candy was chosen for the scent of the flower. According to High Times, the creators picked this name to convey the sweet note that everyone noticed when opening the bag (High Times, 2022). On its strain page, Leafly also likens the smell to that of a packet of candy.

In everyday English, the word does have a meaning. The Larousse English-French dictionary renders "runt" as "avorton", an undersized animal or, colloquially, person (Larousse, consulted on 6 October 2026). Leafly reads it as a nod to the plant's yield, to the size of its heads and to its kinship with Zkittlez.

Where does the Runtz strain come from?

The most detailed account is the one in High Times. In it, grower Nick Corwin crosses a Zkittlez with a Gelato 33 and obtains a dark purple flower that smells of candy. Mutual friends introduce him to Ray Bama, in the San Francisco Bay Area.

The rapper Yung LB, based in Long Beach, completes the trio to whom Cookies attributes the strain, according to Leafly. Runtz is shown to the public in December 2017, at the Emerald Cup in Santa Rosa. The team arrives there, High Times recounts, with a little over 300 jars and 2,500 T-shirts, and everything goes in a few minutes.

Cookies then becomes the exclusive distributor of Runtz, according to the same magazine. On authorship, the sources disagree. Leafly's strain page credits Cookies Fam (Leafly, consulted on 6 October 2026), while the same site's article on the strain of the year names the trio Ray, Nick and Yung LB.

The lineage, for its part, rests on statements. Leafly admits that the exact roots of Runtz are hard to trace, even though the Gelato × Zkittlez cross is widely accepted. Gelato descends from Sunset Sherbet and Thin Mint Cookies; its story is told in the article in the series devoted to Gelato.

The 2020 title rewards notoriety. To award it, Leafly says it combines search trends, product availability, awards won and the opinion of its editorial team. This ranking concerns the American cannabis market and says nothing about a hemp flower sold in France.

White Runtz, Pink Runtz, Purple Runtz: what are the differences?

Success brought derived names. A phenotype is a particular expression of a genetic make-up: the seeds of one cross can give plants that have neither the same appearance nor the same scent. Cookies officially sells two phenotypes, White Runtz and Pink Runtz, according to Leafly. High Times cites nearly ten other names, including Obama Runtz and Super Runtz.

NameWhat the sources allow us to stateSource
Runtz OGAnother name for RuntzLeafly strain page
Gelato ZkittlezSame cross, released by Purple Caper SeedsLeafly strain page
ZwirlzName used in the NetherlandsLeafly strain page
White Runtz, Pink RuntzPhenotypes officially sold by CookiesLeafly, strain of the year
Obama Runtz, Super RuntzVariants cited by the specialist pressHigh Times, 2022
Purple RuntzAbsent from these lists, also carried by hemp flowersProduct pages

The name Purple Runtz appears in none of these lists, although the original Runtz was already described as dark purple. What turns a flower purple is explained in the history of Purple Haze. In France, hemp flowers also carry this name, for example Purple Runtz CBD: there it designates a commercial selection, not a listed variety.

Two flowers with the same name can be two different plants. In 2021, a study published in Nature Plants compared the chemistry of 297 cannabis samples, and the genetics of 137 of them. Two samples with the same name were often as far apart as two samples with different names (Watts et al., 2021).

The article on Gelato shows an example of this in trade: three hemp flowers sold under the name Runtz, each described with a different aromatic profile.

What aromas and terpenes are associated with Runtz?

Descriptions agree on a fruity candy scent. On its strain page, Leafly notes orchard fruit, apricot and sugar; a grower it quotes speaks of candy, grape and gas.

On the chemistry side, Leafly states that the Runtz samples analysed have caryophyllene, limonene and linalool as dominant terpenes. Its strain page also puts caryophyllene first and limonene second, but places myrcene third. Beta-caryophyllene is associated with pepper, limonene with citrus, linalool with floral notes and myrcene with herbaceous notes.

These readings concern THC-rich plants sold in the United States. On a hemp flower, the terpene profile varies with selection, cultivation, drying and the age of the batch. How these molecules form, then how they are measured, is detailed in our article on hemp terpenes.

What does Runtz mean on a CBD flower sold in France?

Under French law, commercial strain names do not exist. To grow, import or sell hemp, the French order of 30 December 2021 requires a variety listed in the official French catalogue or the EU common catalogue. It also caps its Δ⁹-THC content at 0.30% (Légifrance, 2021).

This text also prohibited selling raw flowers to consumers. The Conseil d'État, France's highest administrative court, annulled this ban on 29 December 2022, finding it disproportionate (Conseil d'État, 2022). The catalogue names are agricultural denominations, presented in our guide to authorised hemp varieties.

On a bag of CBD flower, "Runtz" therefore remains a trade name. Compliance depends on the variety grown and on the measured content. The original Runtz belongs to another category: the Leafly page gives it 21% THC, 70 times the French threshold, and it cannot be sold in France.

A Runtz CBD is a hemp flower chosen or named to recall this lineage and its scent. The name says nothing about its CBD content or its terpene profile. Where the 0.30% threshold comes from, and how it is checked, is explained in our article on the legal THC level.

How do you read the analysis of a Runtz CBD?

What the name leaves unanswered is found on the certificate of analysis for the batch. Read it in this order:

  1. Start with the batch and the date. The bag and the document must carry the same number; an analysis published for the strain, with no batch number, does not describe your bag.
  2. Move on to the cannabinoids, measured by liquid chromatography (HPLC) and listed line by line: CBD, CBDA, Δ⁹-THC, THCA. Δ⁹-THC must not exceed 0.30%, and THCA must appear on its own line.
  3. Then look at the terpenes, measured by gas chromatography (GC-MS). They show whether the batch comes close to the caryophyllene, limonene and linalool trio associated with Runtz.
  4. Finish with the contaminants, that is, the tests for pesticides and heavy metals. The laboratory must be accredited for these analyses: check it with the method for verifying an accreditation.

The entries to look for under each heading, such as "ND" or "< LOQ", are detailed in the guide to reading a certificate of analysis. A terpene profile true to the name tells you about the aroma; the legal compliance of the batch is read on other lines.

At Phytogrammes, the Runtz USA page shows, with the reference of the batch on sale, a reference cannabinoid profile in which Δ⁹-THC and THCA each have their own line. As of 18 October 2026, no laboratory certificate is published there. The other flowers are on the CBD Laboratory page.

Worked example On the certificate of a flower sold as Runtz, myrcene comes first and limonene stays low. This batch can be compliant and well documented; it simply moves away from the candy scent expected of the strain. If that scent is what you are after, compare the terpene profiles of several batches and leave the names aside.

Frequently asked questions

The name has no translation: Runtz is a strain name built on that of Runts candy. In English, "runt" means an undersized animal, which Leafly links to the plant's yield and the size of its heads. The final "z" recalls Zkittlez, one of the two parents.

Zkittlez and Gelato are the ones most often cited; High Times specifies that it is Gelato 33. Leafly stresses that the exact lineage remains hard to establish. Gelato itself comes from Sunset Sherbet and Thin Mint Cookies.

According to Leafly, they are two phenotypes of Runtz that Cookies officially sells. Their name describes a sought-after appearance, with no guarantee of composition. For a CBD flower that carries one of these names, only the batch certificate is a reference.

Leafly gave it this title for 2020, in the United States, by combining search trends, product availability, awards and the opinion of its editorial team. The site also mentions a popularity that has been rising since its presentation in December 2017. No quality control plays a part in this choice.

Sources and dates

All linked sources were consulted on 6 October 2026. The dates below refer to publications or updates, not the date of consultation.

  • Leafly, article on the 2020 strain of the year: updated on 2021-10-20.
  • Leafly, Runtz strain page: changing page, update date not recorded.
  • High Times, Dan Wilson, "Runtz Brings Its Iconic Strain to the Masses": published on 2022-12-05.
  • Ferrara, Runts brand page: changing page.
  • Larousse, online English-French dictionary, entry "runt".
  • Watts et al., "Cannabis labelling is associated with genetic variation in terpene synthase genes", Nature Plants, vol. 7, 2021.
  • French order of 30 December 2021 implementing Article R. 5132-86 of the French Public Health Code, Légifrance.
  • Conseil d'État, decision no. 444887 of 29 December 2022.

Written by the Phytogrammes team

Each journal article draws on cited primary sources: ANSM, EFSA, EUR-Lex and peer-reviewed publications. Product profiles are distinguished from documented laboratory results. Our approach.

Article published on . CBD is not a medicine.