King Louis XIII Strain Review

King Louis XIII can, in many ways, be considered the royalty of marijuana strains. This strain has a lot going for it, from its powerful, yet pleasant odor to its optimal potency and soothing effects. 

King Louis XIII Strain Review

Today, we’ll be introducing you to all aspects of the King Louis XIII strain, from its parentage and development to the effects and side effects you may experience. 


In terms of potency, King Louis XIII is the perfect strength for many marijuana consumers. Its THC content weighs in at 22%, which is 3% below the threshold for cannabis that is considered very strong (25%). 

This means that King Louis XIII is potent enough to be enjoyable even for those who smoke quite regularly. However, novices can enjoy this strain too, as long as they start slow and pace themselves. 

King Louis XIII has a very low CBD content of 0.1%, so you won’t have to worry about the potency of the strain being affected by receptor interference.

What Is King Louis XIII? 

King Louis XIII is an Indica-dominant cannabis strain that has been around for several decades. Its genetics come to around 30% Sativa and 70% Indica. 

Because of its Indica-dominant genetic makeup, King Louis XIII is primarily used for relaxation purposes, as we’ll explain further in a moment.

However, the 30% Sativa means that it also produces a significant mental high in addition to the body high expected from Indica strains. 

How Was King Louis XIII Developed?

King Louis XIII has 2 parent strains: LA Confidential and OG Kush. LA Confidential is a popular strain that has a very high Indica percentage of 90%. Meanwhile, OG Kush has a more even split in terms of its genetics, at 45% Indica and 55% Sativa. 

From the combination of these 2 strains, you can see where King Louis XIII gets its moderately Indica-dominant makeup. 

Flavor And Odor 

It is thought that King Louis XIII was so named because of its high THC content and pungent aroma, both of which lend the strain connotations of power.

The smell, in particular, is thought to have inspired the name due to the link between strong odors and the 16th century. 

However, both the odor and flavor of the King Louis XIII cannabis strain are far more pleasant than this connotation might have you believe. 

King Louis XIII emits a distinctly earthy, musky odor that is very similar to pine. The overall flavor is very similar to the scent, and although it’s very powerful, it manages to remain smooth enough.

Physical Appearance 

Nugs of King Louis XIII will be small and compact – so, in other words, this is a physically dense strain. The leaves are bright green in color (more so than many strains on the market) and stand out even further because of the trichomes (crystals) dusted over the bud. 

Grow Info 

King Louis XIII is actually not too difficult to grow, whether you’re just starting out on your growing journey or not. However, you’ll need to make sure that you have the time and resources to care diligently for the plant if you want the best possible yields. 

First of all, it’s important to bear in mind that King Louis XIII has some fairly specific requirements in terms of temperature and humidity. 

King Louis XIII thrives between 68 degrees Fahrenheit and 80 degrees Fahrenheit. If the air in the plant’s environment is too humid, King Louis XIII can succumb to mold.

This is why, if you’re choosing to grow indoors, a dehumidifier may be a useful purchase. However, growing indoors does add the complexity of growing the plant hydroponically, which experts suggest may improve the health of the strain. 

We only recommend growing King Louis XIII outdoors if you live in an area with naturally low humidity, or it will be difficult to maintain the proper conditions. 


When it comes to the experience of actually consuming King Louis XIII, research has shown that the effects vary from person to person. 

For many people, a sense of deep relaxation and happiness is the norm. A significant percentage of people (as many as 46% – almost half!) report feeling sleepy after smoking this strain. 

Side Effects 

Despite the majority of people experiencing positive effects in connection with the King Louis XIII strain, there are some less desirable side effects that consumers should be aware of. 

One of the most common negative side effects of King Louis XIII is anxiety. This often happens when consumers don’t pace themselves or know their limits when it comes to the strain. 

In more severe cases, anxiety may turn into a feeling of paranoia. A fair percentage of people have also reported feeling dizzy after smoking King Louis XIII. 

Medical Appointments 

For those people who do not experience anxiety or paranoia in relation to King Louis XIII, the strain can be helpful for treating the symptoms of anxiety and stress. Because of the strain’s Indica dominance, it is also often used as a sleep aid for insomnia. 

Because many people find themselves feeling happier after smoking or ingesting King Louis XIII, it can also be used to help alleviate the symptoms of depression.

Chronic pain sufferers have also reported positive results when using this strain to reduce inflammation or muscular issues.

Similar Strains 

If you want to expand your experience with strains similar to King Louis XIII, we recommend either Cherry Vanilla Cookies or Chem 91

Cherry Vanilla Cookies is another Indica-dominant strain that induces happiness, sleepiness, and relaxation. It has similar pine notes to King Louis XIII, but it’s sweeter. 

Chem 91 is an earthy, pungent strain known for its relaxing and joy-bringing effects. However, it’s not as effective for inducing sleepiness.

Final Thoughts 

If you’re in the market for a potent smoke that will help you to relax and smile after a long, hard day, King Louis XIII is a top choice. Please note, however, that the soothing effect is not a guarantee for everyone, especially when taken in high quantities. 

Growing King Louis XIII is easy enough if you pay close attention to temperature and humidity in the plant’s environment. 

Dave Roberts
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