Blueberry (S-LAB and Tilray): lineage from Thai landraces and myrcene in the profile

• Who supplies. 2 producers (S-LAB, Tilray) in 3 positions, which may differ in declaration and origin of the raw material.
• Profile. It leads with myrcene, alongside bisabolol, humulene, linalool. We do not provide percentage shares, as sources calculate them against different totals.
• Origin. The lineage is established, with parents being Purple Thai and Highland Thai and Afghani.
• What is missing. The profile describes one source, so there is nothing to compare it with.

What is Blueberry and where does this strain come from?

Blueberry is an indica strain, created by crossing two Thai landraces named purple thai and highland thai with the afghani strain. The lineage is known from the breeder DJ Short’s account, publicly described, so the origin is not a reconstruction based on the name or a guess from a popular strain database.

Two of the three parents are landraces, meaning populations cultivated locally for generations, not named individual cultivars. Thai strains bring genetics from Southeast Asia and a long flowering cycle, while afghani contributes to the compact structure of the flower cluster. The retail classification describes the result as indica, although the indica or sativa label does not say anything certain about the chemical composition of the batch of dried material that reaches the pharmacy.

Let’s separate two things that are easily confused. The name Blueberry refers to a breeding line known from the 1980s, while the dried material currently issued in Polish pharmacies is a specific batch from a specific producer, grown under controlled conditions and laboratory tested before the release of the batch. The common name does not guarantee that two batches from different producers have the same composition, and it happens that they do not. We maintain a complete list of strains available in Polish pharmacies in the summary of currently available strains, which we update with deliveries.

Which producers supply Blueberry to Polish pharmacies?

Two: S-LAB and Tilray. Both versions are marketed under the same strain name, but they are separate medicinal products, with their own permits and their own batches. The availability of each changes with the rhythm of deliveries, so the list from last month may be outdated after just a few weeks.

The difference between the two versions of the same strain comes from cultivation and processing, not from the name on the package. Each producer maintains their own mother plants, their own drying protocol, and their own testing to release the batch, so the chemical profile of two batches can diverge even with identical genetics. Available data do not separate either the terpene profile or the range of active substance content by individual producers, so everything below describes the strain, not the version of a specific company.

We provide the THC content only as a range of 16.2-24.2%. The reason is simple: the declaration on the package has an allowable tolerance of about ten percent of the value, and individual pharmacy positions assigned to this strain declare different levels. One number would imply precision that does not exist in this chain. Pharmacy dried material in the Rpw category is, by the way, something different than the over-the-counter hemp material available in retail, which is subject to separate regulations. The assortment and conditions of issuance change over time, and we maintain a collective summary in the entry about available strains.

What does Blueberry smell and taste like?

• bisabolol bisabolol
• humulene humulene
• linalool linalool
• myrcene myrcene (leading in the pharmacy list)

The aroma is described as sweet and fruity, with a distinct berry note, on which the strain built its name. In the background, earthiness and a slight resinous quality from the afghani side can be detected. The taste can be milder than the smell of the dried material and leans more towards floral than fruity.

However, the description of the smell is the least documented part of knowledge about any strain. There is no sensory standard for hemp material, and reports come from users and breeder materials, not from testing. Two batches of the same strain, harvested in different cycles, can smell noticeably different because volatile components diminish over time and more quickly at higher temperatures. The above description is therefore a reference point, not a promise of what the next person will feel.

Terpenes are responsible for the smell, not the substances that determine the strength of the effect. The profile of this strain describes, among others, myrcene, associated in other plants with earthy and hoppy notes. It is worth remembering that the nose is not a measuring instrument: the aroma description does not allow estimating the composition of the batch or predicting its effects.

How long does it take for Blueberry to take effect and how long does the effect last?

After vaporization, the first sensations appear within a few minutes, and after ingestion, only after half an hour to two. The route of administration determines the course more than the strain itself: no separate study on the absorption process has been published for any single cultivar, so the ranges below describe physiology, not the property of Blueberry.

The route of administration determines the course more than the strain itself, and the ranges below describe just that, not this cultivar, as pharmacokinetic studies for a single cultivar have not been published.

Both pharmacy versions of this strain are equally affected, as the ranges result from the route of administration, not from who produced the dried material.

What is known and what is not known about the effects of Blueberry?

Nothing has been directly demonstrated about this strain. Published studies concern individual components, primarily myrcene, and were conducted on rodents. The rest, such as descriptions of mood, drowsiness, or relief, come from user reports and sales materials, and this is not the same kind of evidence as an experiment.

The terpene profile describes one source, the Polish database budcare.pl. It lists myrcene as the leading position, alongside linalool, humulene, and bisabolol. We do not provide percentage shares, as the denominator in such summaries remains unknown: summed values for the same positions give 46, 73, or 83 percent of the total. Since the sums do not add up to one hundred, the number next to the ingredient name is not information, but a value without reference.

Three studies concern myrcene itself, and all were conducted on mice.

In humans, it has not been demonstrated that myrcene alone alleviates insomnia at doses typical for inhalation of dried material. The direction of the effect in rodents depends on the route of administration and the sex: after intraperitoneal injection in 2002, a slightly anxiogenic effect was described, and after inhalation in 2024, an anxiolytic effect in females. These two results do not cancel each other out; they show that the conclusion depends on conditions that no popular strain database provides.

What side effects have been reported from this strain?

None specifically attributed to this strain. Safety monitoring is conducted for the medicinal product marked with a batch number, not for the trade name of the plant, so public summaries do not allow us to say how many reports pertained specifically to Blueberry or whether any pertained to it at all.

Reports of side effects are collected for the medicinal product with a batch number, not for the strain name, so the following pertains to hemp material as a group of raw materials. The most commonly reported are dry mouth, red eyes, and increased heart rate. Less frequently described are dizziness upon rapid standing, daytime drowsiness, and temporary worsening of short-term memory, as well as anxiety increasing with dosage. A separate issue is medications taken concurrently, especially sedatives and those affecting coagulation: their assessment requires knowledge of the entire list of preparations, not just the description of the plant. We do not provide the frequency of these symptoms numerically, as public summaries for hemp material in Poland do not separate them by individual products.

A separate note concerns the mode of issuance. Hemp material is a pharmaceutical raw material issued by a doctor’s prescription in the Rpw category, and concerning symptoms after its intake should be reported to the attending physician or pharmacist, who can forward them along with the batch number. Without this number, reports cannot be linked to a specific product, and this is where the gap described above comes from.

How to vaporize this strain?

We do not provide any value here, as we have no source for it. Sources describing this strain do not contain a recommended working temperature, and what we have are boiling points of pure compounds: myrcene, the leading terpene in this profile, boils at about 167 degrees Celsius, while caryophyllene only above 256. The setting of the vaporizer is not equal to the temperature of the dried material itself.

The discrepancy between published temperature tables arises because the boiling values of terpenes were measured for pure substances under normal pressure, not for dried material in the vaporizer chamber. In the plant, the same components evaporate under different conditions, and some decompose before they can evaporate. Why such tables contradict each other, we analyze separately.

The practical consequence is simple. The lower the device is set, the greater the proportion of components with lower boiling points in what leaves the chamber, and the smaller the load of active substances; this relationship applies to every dried material, not just this strain, and no specific setting is recommended either by this text or by any of the sources it stands on. What happens to terpenes at subsequent settings is described in the text about evaporating terpenes from dried material, and the state of research on myrcene in the text dedicated to this terpene.

Which strains are related to it?

None of the strains available in Polish pharmacies. The pedigree graph does not assign Blueberry any siblings, and this is not a gap in the data: two of the three parents are landraces, and the third belongs to the broad afghani family, so a common parent is not enough to consider two cultivars as siblings.

A landrace is not a single, identified strain, but a population cultivated locally and preserved for generations, in which individuals differ from each other. The same applies to names like afghani or haze: they describe style and geographical origin, not a specific plant with an established genotype. Two cultivars that share only such a parent may have nothing in common besides the label, which is why the empty sibling list here is a result, not a lack of data.

A warning also works the other way around. A common term in the name does not prove kinship, and there are no exceptions to this; in this collection, the term kush is carried by cultivars with completely different origins, some with established parents, some without. The strains actually present in Polish pharmacies along with what is known about their lineages have been gathered in a collective summary of strains.

Frequently Asked Questions about the Blueberry strain

Is Blueberry available in Polish pharmacies?

Yes. The strain is supplied by two producers, S-LAB and Tilray. However, availability changes with the rhythm of deliveries, so the current state should be checked with a pharmacist or in the collective summary of strains.

What is the THC content in the Blueberry strain?

The pharmacy positions assigned to this strain fall within the range of 16.2-24.2%. We provide a range, not a single number, because individual positions declare different levels, and each declaration comes with a tolerance of about ten percent of the value.

Which terpene dominates the profile of the Blueberry strain?

Myrcene. The profile describes one source and lists alongside it linalool, humulene, and bisabolol. We do not provide percentage shares, as the sources do not disclose the denominator to which these shares refer.

Does Blueberry help with insomnia?

This has not been demonstrated. No study has been published showing that myrcene alleviates insomnia at doses typical for inhalation of dried material, and results in rodents depend on the route of administration and the sex of the animals.

Is Blueberry indica or sativa?

Sources consistently describe it as indica. The indica or sativa label, however, speaks about the plant’s morphology and naming tradition, not about the chemical composition of a specific batch of dried material.

Is a prescription needed to obtain Blueberry?

Yes. Hemp material in the Rpw category is issued only by a doctor’s prescription, on a prescription issued by name, and is not available for over-the-counter sale.

This material is for informational purposes only and does not replace medical consultation. Hemp material is a pharmaceutical raw material issued by a doctor’s prescription in the Rpw category. Editorial text: ubucha.