Sativa

Jack Flash

THC16–21%
CBD0–1%
Jack Flash
StrengthStrongStronger than 14% of our strains
Best forDaytimeErrands, socializing, outdoors
Experience levelSome experienceStart with a small amount

At a glance

Commonly reported effects
CreativeEnergeticUplifted
Possible side effects
Dry MouthDry Eyes

About Jack Flash

Jack Flash is a sativa from Sensi Seeds that blends Jack Herer, Super Skunk and Haze. It is a cousin to the original Jack line and has been a steady presence in European and North American markets since the early 2000s, with a following among fans of classic Haze-style sativas in the United States.

The aroma is earthy and spicy with a bright citrus top note and a hint of skunk underneath. Buds are medium-sized and slightly spear-shaped, lime green with orange hairs and a generous layer of resin. Terpinolene often brings the fresh, zesty lift, caryophyllene adds a peppery spice, and myrcene grounds the profile with earthy depth.

Jack Flash is commonly described as energetic, creative and uplifted, with a clear-headed buzz that people often enjoy for daytime tasks, walks or creative work. THC usually ranges from 16% to 21%, and CBD is generally below 1%.

This strain suits people who prefer active, talkative sativas over heavy body effects. Some find lively sativas a bit racy. Start low, go slow, and keep water nearby. Use WhereLeaf to find Jack Flash at licensed dispensaries and delivery services near you.

Jack Flash terpene profile

Terpenes are the natural oils that give each strain its smell and taste. Listed from most to least dominant.

TerpinoleneDominant

Smells like: Fresh, floral, herbal, a little fruity

Also found in: Lilac, apples, tea tree, nutmeg

Less common as a lead terpene. Typical of lively sativas such as Jack Herer and Durban Poison.

Caryophyllene

Smells like: Peppery, spicy, woody

Also found in: Black pepper, cloves, cinnamon

Gives strains a spicy kick. Common in kush, cookies and gelato lines.

Myrcene

Smells like: Earthy, musky, ripe fruit

Also found in: Mango, hops, lemongrass, thyme

The most common terpene in cannabis. Strains led by myrcene are often described as relaxing and heavy.

Jack Flash family tree

Strain
Jack Flash

Growing Jack Flash

Difficulty
Moderate
Flowering time
9-10 weeks
Plant height
Tall
Yield
High

Only grow where home growing is legal, and follow local plant limits.

Jack Flash compared with its parents

How is Jack Flash different from Jack Herer?

Jack Flash tests lower in THC (around 19% vs 21%). Jack Flash is more often described as uplifted. Jack Herer is better known for feeling focused.

How is Jack Flash different from Super Skunk?

Jack Flash is a sativa, while Super Skunk is an indica. Both test at about the same THC (around 19%). Jack Flash is more often described as creative, energetic and uplifted. Super Skunk is better known for feeling happy, relaxed and sleepy.

For adults of legal age. Not medical advice. THC and CBD vary by grower and batch — check the product label. Effects vary by person. Start low, go slow, and never drive high.

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