Jack Flash strain photo 1 Stock photo similar to Jack Flash Strain
Jack Flash strain photo 1
Jack Flash strain photo 2
Jack Flash strain photo 1
Jack Flash strain photo 1
Jack Flash strain photo 2

Jack Flash

Hybrid 50% S, 50% I
Dominant terpene
Terpinolene 0.28%

19.6 - 21.6%


0.47 - 0.79%


0.1 - 1.06%


Sweet, Earthy



The Jack Flash strain is a hybrid (Indica 50%/Sativa 50%). Being a hybrid of the Sativa Jack Herer, the indica Super Skunk, and Haze, the weed won the Dutch High Life Cup in 1998. Jack Flash is best known for the speed of the high, which hits the mind almost immediately due to its potent Jack Herer genetics. The two dominant terpenes in the strain are terpinolene and carene, which create its sweet earthy, and citrus flavor with spicy notes and pine exhale. The high is multi-faceted, hitting almost immediately with its deep body relaxation, euphoria, energy, and increased creativity, leaving stoners in a total bliss of happiness. The THC level in this weed amounts to 19-21%, making it suitable for experienced users.

I love this mf! Gets me so damn hiiigh! All I Wanna do is ride! If you want your party to rock choose this shit and it will be the party of the year. It goes well with frnds and when you just want to be alone. My gal is a huge fan too, keep the fire burning.

Walker 11.04.21

Jack Flash Strain Review – More Energizing Than Calming Indica

The chemical content also comprises of other cannabinoids in the following concentrations:

  • CBD 0.47-0.79%
  • CBC 0.12-0.5%
  • CBG 0.1-1.06%
  • CBN 0.26-0.3%
  • THCV 0.19-0.8%

Terpenes, Aroma & Flavor

The Jack Flash weed strain is known for its delicious taste and aroma that mainly comes from two dominant terpenes - terpinolene and carene. They give this marijuana bud its sweet earthy flavor of light lavender and pine notes. On the exhale, stoners can notice sour citrus overtones that create a fresh aftertaste and leave them begging for more. There are many other terpenes that support the entourage effects of this cannabis bud and also contribute to the amazing taste. These include:

  • Pinene 0.03%
  • Myrcene 0.12%
  • Ocimene 0.04%
  • Humulene 0.03%
  • Limonene 0.1%
  • Linalool 0.04%
  • Valencene 0.04%
  • Phellandrene 0.09%
  • Caryophyllene 0.08%

Effects of Jack Flash Strain

The Jack Flash strain hits almost immediately with a warming euphoria that is very uplifting in its nature, reducing racing thoughts and stress. The high boosts creativity, motivation, and energy, allowing smokers to easily handle any tasks or conversation. The buzz soon turns into a strong, happy feeling that is relaxing and soothing, helping to reduce psychical and mental aches for hours. Due to its high THC level and these full-bodied effects, Jack Flash is a common choice among medical patients suffering from conditions like:

  • Anxiety
  • Depression
  • Bipolar disorder
  • Lack of appetite
  • Fatigue
  • Migraines

Side effects may appear in consumers with low experience with cannabis or sensitive ones. The most common adverse reactions reported are:

  • Thirst and dry mouth
  • Dry eyes
  • Paranoia

Tips for Cultivators

According to growers, the Jack Flash cannabis may be hard to find outside the American West. However, this weed is highly popular in California and Colorado. The strain produces large buds covered in orange hairs and a thin coating of crystal trichomes. The weed has a flowering window of 56-63 days, allowing growers to harvest the yield of 1-2 ounces (indoors) in 69 days. Indoor and out, the plant reaches 60-80 inches in height. The seeds are hard to find online, but you can ask your local breeders.

User Reviews 11


Was going all well until I started experiencing anxiety and migraines after it wore off. I tried reduced the dose but it didnt help so I had to take a break. I liked the calming effect it had on me but the negative effects were way more. This one is not for me.

Write your reply

I love this mf! Gets me so damn hiiigh! All I Wanna do is ride! If you want your party to rock choose this shit and it will be the party of the year. It goes well with frnds and when you just want to be alone. My gal is a huge fan too, keep the fire burning.

Write your reply

This has to be the best flower for increasing concentration, my no.1.

Write your reply

Has great relaxation effects that leaves your head so clear. Helps me stressing issues.

Write your reply

The best joint for partying, gets me on cloud 9.

Write your reply

Makes me so jovial and giggly.

Write your reply

Gave me paranoia, not cool

Write your reply

this bud is amazing!

Write your reply

Nice earthy and citrusy taste, I love it.

Write your reply

#Hellena456 this bud aint the best for newbies, find something with a less THC level.

Write your reply

I read about it being best for starters but it was so potent and gave me a terrible headache.

Write your reply

Write a Review

Strain details

Jack Flash Strain Cannabinoids

THC Tetrahydrocannabinol, or THC, is a major cannabis chemical compound. It is a psychoactive element that stimulates dopamine release and induces euphoria or happiness. THC-rich strains may be helpful with such conditions as lack of appetite, chronic pains , etc. It is considered to be the primary active marijuana component. 19.6 - 21.6%
CBD Cannabidiol, or CBD, is a major compound in cannabis, which is non-psychoactive. It is also proved to counteract the side effects of the second major component THC. CBD is widely used for medicinal purposes in rubs, oils and so on. It is helpful in muscle pain cases, may treat arthritis and migraines. Even Greeks used it against pain, while Queen Victoria applied it to get rid of menstrual cramps. 0.47 - 0.79%
CBC Cannabichromene, or CBC, is a minor cannabinoid, meaning that its quantity in cannabis is quite little. Though it has the same origin as CBD and THC, it is different in functions. Without any psychoactive effects, it is an efficient cannabis compound in combating acne and depression. CBC produces analgesic, antibacterial and anti-inflammatory effects. 0.12 - 0.5%
CBG Cannabigerol, or CBG, is one of the minor cannabis compounds in adult plants. On the other hand, young ones contain a lot of this antibacterial and anti-inflammatory component. During the growth, CBG is converted into different cannabinoids, mostly THC and CBD. The compound itself increases appetite and decreases eye pressure. 0.1 - 1.06%
CBN Cannabinol, or CBN, is a trace element in cannabis that is considered to be mildly psychoactive. It appears from oxidation THC, exposed to light and heat. CBN is mostly contained in old cannabis and in traditional hashish. It is effective against insomnia, bacterial infections and appetite loss. 0.26 - 0.3%
THCV Tetrahydrocannabivarin, or THC-V, is a compound contained in cannabis in trace amounts. Even though it is close to THC molecularly, it is different in effects. This compound may be psychoactive only in large amounts. THC-V reduces blood sugar, controls appetite, stimulates bone growth, etc. African Sativa strains are the richest in THC-V. 0.19 - 0.8%

Jack Flash Terpene Profile

Carene Carene (also known as Delta-3 carene) is a terpene found in rosemary, lemons, pines, and cedars, offering citrusy and cypress aroma. Studies on mice showed that carene provides anti-inflammatory effects, as well as promotes bone health and chronic pain relief. 0.13%
Pinene Pinene is one of the most widespread terpenes in nature, found in pine trees, basil, nutmeg, parsley, and rosemary. Cannabis containing terpene (alpha-pinene or α-pinene) boasts a strong pine scent. Pinene is responsible for anti-inflammatory, pain-relieving, and anti-anxiety effects. 0.03%
Myrcene Myrcene (also known as β-myrcene) is one of the most common terpenes found in cannabis, representing more than 20% of the modern marijuana terpene profile. Myrcene has a distinct earthy, musky flavor, resembling cloves. It is responsible for calming and soothing effects of weed. Myrcene is also found in hops, thyme, mango, lemongrass, guava melon. 0.12%
Ocimene Ocimene (derived from the Ancient Greek word Ocimum meaning basil) is a terpene with sweet and herbaceous flavors, also boasting citrusy and woody undertones. Naturally, ocimene occurs in mint, parsley, orchids, hops, kumquats, mangoes, basil, bergamot, lavender, and pepper. Offers antifungal, anti-inflammatory, and antiviral properties. 0.04%
Humulene Humulene (also known as α-humulene) is one of the major terpenes found in cannabis, contributing to woody, earthy, spicy, herbaceous, and, mainly, floral aromas of cannabis. Used in modern medicine, humulene offers anti-inflammatory, antibacterial, and appetite suppressant effects, which have been well-researched by pharmaceutical companies. 0.03%
Limonene Limonene (also known as d-limonene) is the second most common terpene in nature and the third most common terpene in cannabis. It has a powerful citrus aroma and can be found in all citruses, including lemons, oranges, grapefruits, limes, juniper, etc. Limonene is known to elevate moods and provide anxiety, depression, and stress relief. 0.1%
Linalool Linalool (also known as beta linalool, linalyl alcohol, linaloyl oxide, and p-linalool) is one of the rarest terpenes found in cannabis, mostly in small quantities. Linalool is known for its spicy and lavender aroma, bringing relaxation and calming effects. It is also said to provide anti-inflammatory and analgesic properties that can be useful for athletes. 0.04%
Valencene Valencene is a terpene that got its name from Valencia oranges - a fruit where It's initially found. Valencene offers citrusy, sweet aromas, with flavors having notes of oranges, grapefruits, tangerines, and, occasionally, fresh herbs or freshly cut wood. Citrus aromas, frequently found in a wide variety of cannabis strains, are contributed to by valencene, which is known for anti-inflammatory and insect repelling properties. 0.04%
Terpinolene Terpinolene is one of the most common terpenes found in cannabis; however, It's usually presented in small quantities. Is responsible for piney, floral, herbaceous, and even a little bit citrusy aroma of cannabis. Terpinolene can be found in lilacs, nutmeg, and cumin. In cannabis, terpinolene contributes to the sensation of "freshness." Has the potential to reduce the risk of heart diseases. 0.28%
Phellandrene Phellandrene (also known as alpha- and beta-phellandrene) is one of the rare terpenes found in cannabis with antihyperalgesic and antidepressive properties. Phellandrene contributes to a minty, woody, and mildly citrus aroma in cannabis. Previously confused with limonene and pinene, phellandrene was eventually distinguished as a separate terpene common for eucalyptus. Also, it could be found in mint, dill, black pepper, cinnamon, parsley, pine, and lavender. 0.09%
Caryophyllene Caryophyllene (also known as beta or b caryophyllene) is a terpene found in many herbs and spices, such as black pepper, basil, rosemary, and oregano. Cannabis high in caryophyllene delivers a strong spicy, peppery aroma, resembling cinnamon and cloves. Caryophyllene offers potent anti-inflammatory and sedative effects. 0.08%
Total terpenes content 0.98%


Sensi Seeds

Growing Info

Flowering time 56 - 63 Days
Flowering type Photoperiod
Grow difficulty Difficult
Harvest time 69 Days
Yield outdoor
Yield indoor 1 - 2 Oz/Ft² (~ 400 g/m²)
Height indoor 60-80
Height outdoor 60-80

Jack Flash strain lineage

Similar Strains

Choose by