Cannabis Cannabis Strain Reviews

Jack Herer Cannabis (Weed) Strain Review

Jack Herer is a famous cannabis strain named after the renowned cannabis rights activist and author, Jack Herer. It was created by Sensi Seeds in the Netherlands during the 1990s. The breeders combined three legendary strains, Haze, Northern Lights #5, and Shiva Skunk, to produce this potent hybrid. Jack Herer’s appearance is typical of a Sativa-dominant strain, with elongated, dense, and tightly packed buds. The flowers often have a bright green color with orange pistils (hairs) scattered throughout.

The buds may also be covered in a generous layer of sticky trichomes, giving them a frosty and sparkling appearance. As for the aroma, Jack Herer has a unique and complex fragrance. It emits a sweet and spicy scent, reminiscent of pine, earth, and hints of citrus. When properly cured, the buds may release a pleasant combination of herbal and peppery notes. The flavor of Jack Herer is just as appealing as its aroma.

Consumers often describe its taste as a delightful fusion of spicy and piney flavors with a subtle underlying sweetness that lingers on the palate. The combination of terpenes in this strain contributes to its well-rounded and enjoyable taste. Consumers often feel euphoria, increased creativity, and mental clarity after consuming this strain. It can also enhance focus and sociability, making it a good option for social interactions or creative activities.

Jack Herer StrainFeatures/Details
Also known asN/A
EffectsFeelings of happiness, creativity, boost in productivity
Leaf ShapeLong, narrow leaves with elongated edges
Medical ApplicationStress relief, depression management, fatigue reduction
FlavorEarthy, Pine, Woody, Spicy
AromaEarthy, Herbal, Woody, Spicy
AppearanceVibrant and lush green frosty buds with orange hairs
Flowering PeriodTypically ranges from 9 to 10 weeks
CannabinoidTHC levels of 15% to 24%; low CBD levels (usually below 1%)
TerpenesPinene, limonene, Myrcene, and Caryophyllene

Jack Herer Effects and Potency

Jack Herer is a potent cannabis strain with THC levels ranging from 15% to 24% on average. The CBD levels are often low, ranging from around 0.1% to 0.5%. Some phenotypes may even reach higher THC concentrations, making it a potent strain that should be approached with caution, especially by novice users. The effects of Jack Herer are usually felt relatively quickly after consumption, typically within minutes to 15 minutes.

The onset is fast due to its sativa-dominant nature. The effects tend to peak within the first hour and can last anywhere from 2 to 4 hours, depending on individual tolerance, dosage, and consumption method. The strain’s energizing properties spark motivation and creativity, fostering mental clarity and focus, making it an ideal companion for daytime activities. Its sociability-enhancing attributes facilitate easy interactions, making it an appealing choice for social gatherings.

Potential Positive Effects of Jack Herer

  • Energy and Focus: It provides an uplifting and energetic boost, which can enhance motivation, productivity, and creativity. This makes it a popular choice for daytime use and creative pursuits.
  • Euphoria: Jack Herer is known to induce a strong sense of euphoria and happiness, lifting the mood and promoting a positive outlook.
  • Mental Clarity: Many users report increased mental clarity and improved cognitive function, making it suitable for tasks that require concentration and focus.
  • Sociability: Jack Herer may enhance sociability and communication. The strain can improve users’ social interactions.

Potential Side Effects of Jack Herer

Like many strains, Jack Herer can cause dry mouth (cottonmouth). Staying hydrated and drinking plenty of fluids can help alleviate this discomfort. Some users may experience dry and itchy eyes. Using over-the-counter eye drops can help soothe this irritation. Due to its high THC content, individuals sensitive to THC may experience increased anxiety or paranoia, especially when consuming large amounts or if they are new to cannabis.

Using Jack Herer in moderation is advised for such individuals. In some cases, especially with novice users, high doses of Jack Herer can lead to dizziness or lightheadedness. Starting with a low dosage and gradually increasing it can help minimize this risk. As with any cannabis strain, individual reactions and experiences can vary, and it’s essential to consume responsibly and in accordance with personal tolerance levels. If you’re new to Jack Herer or cannabis in general, start with a low dose and observe how your body responds before consuming more.

Medical Applications 

The uplifting and euphoric effects of Jack Herer can be beneficial for individuals dealing with stress and anxiety. The strain’s mood-enhancing properties may help users experience a sense of calm and relaxation, making it a potential aid for stress management. Jack Herer’s ability to elevate mood and induce euphoria may also be helpful for individuals suffering from depression.

The strain’s uplifting effects can provide a temporary escape from negative thoughts and emotions. With its moderate to high THC levels, Jack Herer may offer relief for individuals experiencing chronic pain conditions such as arthritis, migraines, or muscle spasms. THC has analgesic properties that can help alleviate pain and discomfort.

The energizing effects of this strain make it an excellent choice for those experiencing fatigue or low energy levels. It can provide a boost in motivation and mental clarity, promoting a sense of vitality and productivity. It can improve focus and concentration, making it potentially helpful for individuals with attention-related issues or those who need enhanced cognitive performance for tasks.

For individuals dealing with a lack of appetite or undergoing treatments that suppress hunger, Jack Herer’s uplifting effects may stimulate appetite and promote a desire to eat. Some users have reported finding relief from symptoms of PTSD, such as intrusive thoughts and hyperarousal, by using Jack Herer. Its ability to induce relaxation and reduce anxiety may be beneficial for managing PTSD-related symptoms.


The most dominant and distinctive flavor in Jack Herer is the piney taste, reminiscent of walking through a lush pine forest. This earthy and woody note is a hallmark of the strain and is one of the primary reasons for its name, as it pays homage to the renowned cannabis activist, Jack Herer. There is a subtle spiciness and citrusy tang that adds a refreshing twist to the flavor profile. The citrus notes are not overpowering but improve the strain’s taste.

Jack Herer also has herbal undertones and a mild sweetness. One of the most intriguing aspects of Jack Herer’s flavor is the way it combines seemingly contrasting tastes into a harmonious whole. The taste of Jack Herer closely aligns with its aroma, which is one of the reasons why this strain is so highly regarded. When the buds are broken open or ground, the sweet and spicy fragrance with strong pine and herbal undertones fills the air, giving users a preview of the taste experience to come.


The most dominant scent in Jack Herer is the strong, unmistakable aroma of pine. This robust piney fragrance is one of the defining characteristics of the strain and adds a fresh and invigorating quality to the overall aroma. Accompanying the pine, there is a noticeable spiciness that adds depth and complexity to the scent profile.

Jack Herer’s aroma also carries earthy undertones, reminiscent of the natural scent of soil and vegetation. Amidst the dominant scents, there are subtle undertones of citrus and herbs that add a zesty and refreshing twist to the aroma. When you compare this strain with Super Silver Haze, both have strong pine and spice aromas, but Super Silver Haze may have more pronounced citrus undertones.


The buds of Jack Herer have a vibrant and lush green color as their base hue. The shade of green can range from light to darker tones, depending on the specific phenotype and growing conditions. These buds are adorned with a network of bright orange pistils (hairs) that elegantly weave through the green landscape. When held, the buds have a satisfying weight and feel due to their firm and compact nature.

Running your fingers over the surface reveals a slightly sticky and resinous texture, attributed to the abundance of glistening trichomes. These trichomes are the resinous glands responsible for producing cannabinoids and terpenes. The leaves exhibit a rich green color, mirroring the vibrancy of the buds. The leaves are generally slender and elongated, typical of Sativa-dominant strains. Their edges may be finely serrated, adding to the plant’s elegant and sophisticated appearance.

Growing Information 

Jack Herer takes around 9 to 10 weeks to reach full maturity. During this period, the plants undergo significant growth and resin production that result in the development of dense and potent buds. As a Sativa-dominant strain, Jack Herer can grow relatively tall during its vegetative phase. Indoors, it may reach a height of 3 to 4 feet (approximately 90 to 120 cm) on average, while outdoor plants can stretch even higher, often reaching up to 6 feet (approximately 180 cm) or more.

Maintaining the right humidity and temperature levels is crucial for the successful growth of Jack Herer. During the vegetative stage, the ideal humidity ranges from 50% to 70%. As the plants enter the flowering phase, humidity should be gradually reduced to around 40% to 50%. The recommended temperature range for this strain is between 68°F to 80°F (20°C to 27°C) during the day and slightly cooler at night.

Jack Herer can be grown both indoors and outdoors, but it generally thrives best in a controlled indoor environment. Indoor cultivation allows growers to monitor and adjust environmental factors such as light, temperature, and humidity, providing optimal conditions for the plants to flourish. However, outdoor cultivation is also possible, especially in regions with warm and sunny climates. Outdoor growers should aim for a temperate and sunny environment, with a frost-free growing season.

This strain can also perform well in more temperate climates, as long as it’s protected from extreme weather conditions. Due to its sativa-dominant nature, Jack Herer can grow quite tall. Indoor growers should be prepared to manage the height and train the plants to ensure they don’t outgrow their space. Jack Herer can have a strong and pungent aroma, especially during flowering.

Indoor growers may need to implement odor control measures to prevent the scent from becoming overwhelming. While this strain responds well to proper nutrient supplementation, it can be sensitive to overfeeding. Careful attention to nutrient levels is necessary to avoid nutrient burn or deficiencies.

Tips for Successful Growth

  • Pruning and Training: Utilize pruning and training techniques, such as topping or LST (low-stress training), to manage the plant’s height and promote even canopy growth.
  • Environmental Monitoring: Regularly monitor temperature, humidity, and light levels, adjusting as needed to maintain optimal conditions for growth.
  • Quality Genetics: Start with high-quality seeds or clones from a reputable source to ensure consistent and reliable growth.
  • Proper Nutrient Schedule: Follow a balanced nutrient schedule, using products specifically formulated for cannabis cultivation to support healthy development.
  • Harvest Timing: Pay close attention to the trichomes and pistil coloration to determine the optimal harvest time for the desired effects.

Cannabinoid and Terpene Profile 

Jack Herer typically has high levels of THC (tetrahydrocannabinol), ranging from 15% to 24% on average. THC is the primary psychoactive compound in cannabis and is responsible for the euphoric and intoxicating effects commonly associated with the plant. While Jack Herer is primarily THC-dominant, it also contains moderate levels of CBD (cannabidiol), ranging from around 0.1% to 0.5%.

CBD is a non-intoxicating cannabinoid that has gained significant attention for its potential therapeutic benefits. The terpenes are Limonene, Myrcene, Caryophyllene, and Pinene. Pinene is responsible for the distinct pine aroma and is the most abundant terpene in Jack Herer. It may have potential anti-inflammatory properties and is believed to promote mental alertness and memory retention.

Buy Jack Herer Seeds Online

Prices for cannabis seeds can vary based on the strain’s popularity, seed type (regular, feminized, or autoflowering), and quantity. It’s common to find Jack Herer seeds sold in packs of 5, 10, or more, with prices ranging from $30 to $100 or more, depending on the seed bank and seed type.

Jack Herer Feminised Seeds. | Photo: Seedsman

When looking to purchase cannabis seeds, it’s essential to choose reputable and trustworthy seed banks to ensure you receive high-quality and authentic seeds, such as Seedsman. They offer various seed options, including feminized and regular seeds.

Frequently Asked Questions

Question: Is Jack Herer Indica or Sativa-dominant?
Answer: Jack Herer is a Sativa-dominant hybrid strain.

Question: What is the typical flowering time for Jack Herer?
Answer: Jack Herer has a moderate flowering time of around 9 to 10 weeks.

Question: How tall does Jack Herer plant grow?
Answer: Indoors, Jack Herer typically reaches a height of 3 to 4 feet, while outdoor plants can grow up to 6 feet or more.


Jack Herer is an iconic sativa-dominant cannabis strain with well-rounded effects. Its origins trace back to the cannabis activist and author Jack Herer, and it has become a favorite among cannabis enthusiasts worldwide for its uplifting and energizing effects. The strain’s potency, with THC levels ranging from 15% to 24% on average, delivers a strong euphoria and happiness, accompanied by heightened focus and creativity. Its aroma is a symphony of pine, spice, citrus, and herbal notes.

For medical users, Jack Herer holds potential benefits in relieving stress, anxiety, depression, chronic pain, and lack of appetite, making it suitable for managing various conditions. The strain’s terpene profile adds to its allure, with pinene, myrcene, limonene, and caryophyllene playing significant roles in its aroma and potential effects.

Cultivating Jack Herer can be a rewarding endeavor, with its moderate flowering time and compact and resinous buds. This strain has a preference for a controlled indoor environment; however, outdoor cultivation is also possible in warm and sunny climates. Nevertheless, Jack Herer’s height management and odor control require consideration for successful cultivation.

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