King Louis XIII Strain Guide: Effects, Lineage, Terpenes

King Louis XIII — also called King Louis, Louis XIII Kush, and King Louie — is a classic West Coast indica with a reputation as one of the more sedating kush cuts in regular circulation. Its calling card is an intensely piney, earthy, gassy nose and a deep, physical heaviness that reviewers almost universally file under “nighttime.” If you have ever heard someone describe a strain as the textbook “gas and pine” OG, this is often the one they mean.

If you searched “King Louis XIII strain” wanting a clear breakdown of what it is and how it tends to feel, this guide gathers how the cultivar is described across the major cannabis databases — Leafly, AllBud, Weedmaps, SeedFinder, and clone-lineage records — so you can see the full picture before you decide. At the end, you can browse VAYU’s King Louis XIII Cold Cured THCA Live Rosin if a solventless concentrate of this profile sounds like your kind of session.

Quick Facts

Strain type	Indica or indica-dominant hybrid. Commonly listed around 70/30 indica; some sources call it a pure indica
Breeder	Not definitively documented. Maintained as a clone-only cut; SeedFinder records it under “Clone Only Strains.” The original breeder is unpublicized
Lineage	OG Kush x LA Confidential (most commonly reported)
Reported THC range	Typically 20-29%, with many batches around 24-26% and some phenotypes higher
Dominant terpenes	Myrcene-led, with caryophyllene and limonene; pinene and humulene also reported
Aroma	Pine, earthy kush, fuel, a pungent musk
Flavor	Pine and earth on the inhale, spicy gas and a touch of citrus on the exhale
Common use case	Evening, late night, deep wind-down
VAYU format	Cold Cured THCA Live Rosin (solventless concentrate)

What Is the King Louis XIII Strain?

King Louis XIII is an indica-leaning cultivar most commonly reported as a cross of OG Kush and LA Confidential — two cornerstones of the Southern California OG ecosystem. From OG Kush it inherits the piney, fuel-forward kush backbone; from LA Confidential, the dense, resinous structure and the famously heavy, sedating body presence. The result is one of the more potent and physically grounding cuts in the broader OG Kush family.

It is worth being honest about the breeder history, because the public record is thin. King Louis XIII has circulated primarily as a clone-only variety rather than through seed releases, and the original breeder is unpublicized — a common pattern for OG derivatives that were shared informally among California growers in the early-to-mid 2000s before “breeder of record” was something anyone tracked. SeedFinder catalogs it under “Clone Only Strains” for exactly this reason. The OG Kush x LA Confidential lineage is what nearly every source agrees on; the question of who first selected and named it is the part that is not well documented.

VAYU classifies King Louis XIII as an Indica, which lines up cleanly with how the databases and consumer reviews describe it: heavy, relaxing, and firmly an end-of-day cultivar. We offer it as a solventless cold-cured live rosin rather than flower, because this dense, resin-heavy kush is the kind of cut that translates beautifully into a concentrate.

Origin and Lineage Tree

King Louis XIII = OG Kush x LA Confidential (most commonly reported)
OG Kush = the foundational West Coast kush, source of the pine-and-fuel terpene signature
LA Confidential = an Affymance / California indica prized for dense resin and heavy physical effects

That pairing explains the whole profile. OG Kush carries the piney, gassy kush character that leads the nose; LA Confidential brings the density, the resin, and the deeply sedating body weight. Stacked together, they produce the “gas-and-pine, then anchor to the couch” experience that King Louis XIII is known for.

Effects and Experience

Across published reviews, King Louis XIII is consistently described as a heavy, deeply relaxing indica. Common consumer-reported notes include:

A slow, settling onset that reviewers describe as sinking into the body
Pronounced physical heaviness that many associate with the term “couch-lock”
A mellow, often sleepy back end that the majority of write-ups place late in the evening
Long-lasting, potent effects that fade slowly

This is widely reported as a high-THC cultivar — flower commonly tests in the 20-29% range — and as a solventless live rosin, it is meaningfully more concentrated than flower. The responsible-use note matters here: start very small. A dab the size of a grain of rice can deliver far more than a comparable amount of flower, and King Louis XIII is consistently described as a cut that brings real weight even at modest doses. Go slow, wait to feel it, and add more only if you want it. Because so many reviewers describe it as sleepy, it is the kind of cultivar most people would not pick before they need to be alert.

Terpene Profile

Across the databases, the most commonly listed dominant terpenes for King Louis XIII are:

Myrcene — earthy, musky, slightly fruity. Usually listed as the lead terpene, and the one most associated in consumer reports with the heavy, body-anchoring character.
Caryophyllene — spicy and peppery. Adds the gassy, slightly sharp edge that runs through the kush nose.
Limonene — citrusy and bright. A supporting note that lifts the otherwise earthy, fuel-forward profile.
Pinene (often reported alongside) — sharp, resinous, piney. This is the terpene most responsible for the signature forest-pine top note that gives King Louis XIII its name recognition.

Because live rosin is a solventless, terpene-rich concentrate, the King Louis terpene signature — that pine-and-gas-over-earthy-musk combination — tends to come through vividly in the pressed product.

Aroma and Flavor

King Louis XIII is one of the more recognizable noses in the kush world. Common sensory notes across published reviews:

Aroma: Sharp pine and fresh forest up front, earthy kush musk underneath, and a pungent fuel note throughout. Many reviewers compare it to a walk through evergreens.
Inhale: Pine and earth, with a resinous, slightly woody body.
Exhale: Spicy gas and a faint citrus edge, with a lingering kush earthiness.

In a cold-cured live rosin, those notes are captured directly from fresh, ice-water-washed resin rather than reconstructed — which is why solventless King Louis tends to read as fuller and truer to the plant than many other extract formats.

Best Time of Day and Use Cases

Reviewers and consumers most commonly slot King Louis XIII into:

Late evening and night — by a wide margin the most common context in reviews.
Deep wind-down — when the goal is to fully slow down.
Couch and pre-bed sessions — many users describe reaching for it at the very end of the day.
Quiet, low-key settings — music, a movie, nothing demanding.

It is essentially never described as a daytime, social, or productivity cultivar. If you need to stay sharp, most write-ups would steer you somewhere lighter.

How VAYU’s King Louis XIII Is Different

VAYU offers King Louis XIII as a Cold Cured THCA Live Rosin — a solventless concentrate, not flower. Here is what that means and what you get:

Solventless and cold-cured — our rosin is made by pressing ice-water hash with heat and pressure only. No butane, propane, ethanol, or other chemical solvents are used anywhere in the process.
Terpene-rich — cold-curing preserves the volatile terpenes that give King Louis its pine-and-gas signature, so the concentrate stays true to the cultivar.
High potency — rosin concentrates the active compounds well above flower levels, which is why it is a small-dose format.
Hemp-derived THCA, federally compliant under the 2018 Farm Bill when total Delta-9 THC is below 0.3% by dry weight.
Third-party lab tested — every batch ships with a Certificate of Analysis so you can verify the cannabinoid profile and contaminant screen before you dab.

Browse it here: VAYU King Louis XIII Cold Cured THCA Live Rosin. You can also explore more cultivars in the VAYU Strain Hub or shop the full VAYU collection.

Frequently Asked Questions

Is King Louis XIII indica or sativa?

King Louis XIII is an indica or indica-dominant hybrid. It is commonly listed around 70/30 indica, and some sources call it a pure indica. Consumer-reported effects are overwhelmingly described as heavy and sedating. VAYU classifies it as an Indica.

Who bred King Louis XIII, and what are the parents?

The parentage is most commonly reported as OG Kush x LA Confidential, and that lineage is consistent across sources. The original breeder, however, is not definitively documented — the cultivar circulated as a clone-only cut out of the California OG scene, and SeedFinder records it under “Clone Only Strains” rather than a named breeding house. We would rather say that plainly than invent a pedigree.

How strong is King Louis XIII?

In flower, reported THC typically lands in the 20-29% range, with many batches around 24-26% and some phenotypes higher. As a solventless live rosin, it is more concentrated than flower, so it is a small-dose format — start with an amount the size of a grain of rice and wait before adding more.

What does King Louis XIII taste like?

Sharp pine and earthy kush up front, with a pungent fuel note and a faint citrus edge on the exhale. It is a classic “gas and pine” OG-style flavor rather than anything sweet or fruity.

Is hemp-derived THCA live rosin legal?

Hemp-derived THCA products are federally compliant under the 2018 Farm Bill when total Delta-9 THC is below 0.3% by dry weight. State laws vary, and some states restrict or prohibit THCA products specifically. Check your state’s rules before ordering.

How does THCA live rosin work?

THCA is the acidic precursor to Delta-9 THC. When heated through dabbing, vaporizing, or cooking, THCA converts to Delta-9 THC at roughly an 87.7% rate. Raw, unheated THCA is not intoxicating on its own — the activation happens with heat. Because rosin is a concentrate, the effect per dose is stronger than flower, so start very small.

Will King Louis XIII show up on a drug test?

Yes. Because THCA converts to Delta-9 THC when heated, standard drug tests will detect THC metabolites regardless of whether the source was hemp or marijuana. Plan accordingly.

Try VAYU’s King Louis XIII

If a piney, gassy, deeply relaxing end-of-night cultivar in a solventless format sounds right, you can pick up our cold-cured King Louis XIII live rosin here: Shop VAYU King Louis XIII Cold Cured THCA Live Rosin. Every batch ships with a Certificate of Analysis from a third-party lab.

Sources: this guide was synthesized from publicly available cannabis databases and breeder profiles including Leafly, AllBud, Weedmaps, and SeedFinder.

These products are not intended to diagnose, treat, cure, or prevent any disease. Hemp-derived products may impair driving and operating machinery. Do not use if pregnant or breastfeeding. Keep out of reach of children and pets. Must be 21 or older to purchase.