J1 Strain Review

At first, you may be a little confused as to where the J1 name comes from. However, when you discover that its parents are Jack Herer and Skunk #1, it all makes more sense.

J1 Strain Review

The perfect Sativa dominant hybrid strain of its parents, J1 is not only delicious but also potent at the same time. Find out more about the J1 strain with our review below.


J1 is quite a potent strain. It is certainly not for the faint of heart or first-time medicinal marijuana users. Just a few hits of the J1 strain could see your eyelids become very droopy and leave you in an extremely lethargic state.

However, it is known for its uplifting clear-headed buzz that can actually allow for extra mobility in some users. 

What Is The J1 Strain?

J1, also known as Jack One, is a Sativa-dominant hybrid strain. This hybrid is most famous for its potent yet clear-headed high. This is why it is such a popular choice among cannabis smokers to enjoy the “wake and bake” experience. 

With THC levels measuring approximately 21% to 23%, there is no surprise that the clear-minded feeling is common with J1. If you’re a fan of Jack Herer and Skunk #1, you will certainly love this crossbreed of both.

It wonderfully balances the Sativa and Indica effects into a pleasant feeling after being smoked.

How Was J1 Developed?

J1 is the offspring of the Sativa Jack Herer and the hybrid Skunk #1. Skunk #1’s 15% to 22% THC percentage and Jack Herer’s 18% to 23% THC easily explains the 18% to 25% J1 Strain THC content. It was simply bred for a happy, good buzz. 

Interestingly, Jack Herer was actually bred from Skunk #1 and Haze so the lineage of J1 is actually two parts Skunk #1 indica hybrid and 1 part Haze Sativa hybrid. 


When you inhale the J1 strain, it initially has a citrusy taste that is coupled with other spicy flavors. These sweet flavors are more noticeable when you exhale with the aftertaste being extraordinary.

If you want to treat your taste buds, J1 Is the strain to go for. Overall, it is recognized for its sweet and sour taste while remaining fruity. 

Odor And Flavor

The fragrance of the J1 strain is a combination of different aromas that have been inherited from its parent strains. It releases a sweet, citrusy scent as well as more pungent piney and skunky notes. Some users find that it smells a little dank with quite a close resemblance to rosemary.

Physical Appearance 

When the J1 plant is fully grown, it is regarded as a medium to tall plant. It produces quite large, emerald green buds that are heavily frosted. It is also covered in trichomes which have very thick orange pistils helping the strain stand out. 

Grow Info

Even experienced J1 Growers find this plant moderately difficult to grow.  This is why it is not recommended for novice growers who have little to no experience in cultivating.

J1 plants can be grown indoors and outdoors but they must be planted in a complex nutrient-rich soil medium. Highly recommended is high-quality soil that is rich in nutrients such as potassium, nitrogen, and phosphorus.

This maximizes J1’s terpene content. Such super soil can be purchased premixed for a very reasonable price. You can even try creating your own nutrient-rich soil at home.

By making it yourself, you will be able to add the ideal amount of nutrients for your cannabis to grow effectively and efficiently.

We suggest checking out Subcool of TGA Genetics. He released a soil recipe in High Times Magazine a few years ago and his method is considered one of the best ways to cultivate cannabis plants organically. 

The buds of J1s are densely packed together. Therefore, the space where they are grown must have good air circulation. When indoors, you will need a ventilation system. This should keep the temperature and humidity level inside the optimal range.

The perfect temperature for a J1 plant is generally between 68 to 80 degrees Fahrenheit.

You must monitor the humidity level very closely to prevent any mold or mildew from forming on the J1 plant. J1 is unlike many plants as it prefers a lower humidity during its vegetative phase.

Nonetheless, when it reaches its flowering stage, you must ensure that the humidity is at 40%.


The general effects of J1 are generally positive. Typical effects include:

  • Creative moments and motivation 
  • Uplifting feeling
  • Energetic feeling
  • More focus
  • Happiness 

Side Effects 

Although there are some positive effects from smoking the J1 strain, there are possible side effects such as:

  • Dry eyes
  • Dry mouth
  • A depressed mood
  • A rise in anxiety
  • A loss of appetite
  • Dizziness

Nevertheless, many users swear by J1 for helping ease their anxious thoughts, depressive moods, and stress. 

Medical Appointments 

J1 is a popular strain amongst medicinal and recreational cannabis consumers. Because of its numerous uplifting effects, this train is frequently used for short-term relief from certain mood disorders and stress. Just some disorders it can help include:

  • Post-traumatic stress disorder (PTSD)
  • Bipolar disorder
  • Attention deficit disorder (ADD)
  • Attention deficit hyperactivity disorder (ADHD)

Many users who use J1 for “wake and bake” scenarios say that it provides them with an energy boost. Therefore, it can be beneficial for those suffering from chronic fatigue. 

Similar Strains

If you are interested to know what strains are like J1, here are a few that share similarities with their potency and effects:

Each one of these is a Sativa-dominant hybrid weed strain that offers similar mentally uplifting effects with relaxing body effects.

Strain Cannabinoids 

  • THC: 20.5 %. The majority of J1 strains contain an average THC level of around 20%. But, some tests have revealed a J1 sample can contain up to 23% THC. 
  • CBD: 0.01%. There are only trace amounts of cannabidiol with most samples containing approximately 0.01% CBD.
  • Sativa: 60%
  • Indica: 40%

If you enjoyed this article, you might enjoy our post on the Snowcap strain.

Dave Roberts
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