(4 customer reviews)

Jack Flash Autoflowering Feminized Seeds

From: $29.99

Jack Flash marijuana is an award-winning hybrid with above-average THC that will improve your mood and creativity.

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If you’re a fan of DC Comics then you will recognize the name of this Dutch High Life Cup winner in 1998!  Jack Flash marijuana is bred by Sensi Seeds, and is a cross between Jack Here, Super Skunk, and Haze! This is a strain for veteran weed smokers, because of its psychedelic effects and fast-acting head rush!

What are the effects of Jack Flash marijuana?

  • Uplifting
  • Energetic
  • Happy
  • Euphoric


Beginner weed smokers beware, Jack Flash marijuana will work its psychedelic feeling within 30 minutes!  For our users who have been around the block a few times, you will absolutely love the balance of the uplifting and happy mood that goes along with the trippy feeling! The first couple of hours, you will feel energized to get things done, and this also helps get your creative juices flowing! 


Jack Flash also has some aphrodisiac effects that those looking for a bit of help in the libido department will absolutely benefit from these effects! This is a munchie-inducing weed, so make sure you have the snacks readily available. This strain is a mood-enhancing smoke, and after a few hours, some users report sleepiness, while others get the opposite effect! You never know what you are going to get with the unpredictable Jack Flash!

What are the therapeutic benefits of Jack Flash marijuana?

Jack Flash marijuana is a happy and uplifting strain, therefore this is a great weed to help combat mood disorders!  Many people who suffer from depression and need to turn their frown upside down will love this strain. However, a little goes a long way, which can also be beneficial, because you don’t need that much to turn your mood around! This is also a great strain for aches and pains, and for those looking to increase their appetite!

What does Jack Flash marijuana taste like?

You’ll be able to point out Jack Flash marijuana based on its very pungent scent that is unique and distinct. However, the scent doesn’t translate as much to the flavor, so if you’re not a fan of how it smells, don’t discount this one yet! You’ll receive a sweet, citrusy taste upon inhaling with hints of earth or wood. Many users report the taste as more pleasant than the scent and enjoy the citrus notes.

How do I grow Jack Flash marijuana seeds?

Jack Flash marijuana seeds are pretty easy to grow, so many newbies will want to take a stab at this strain!  Because of how tall the plant can get, trimming and pruning are necessities to get the most yield. If you are a more confident grower, then hydroponics will work the best for these seeds. Patience will be a virtue for this plant as it takes an above-average time to flower, so make sure you are watching over the plant to keep it at a good height!

What do Jack Flash marijuana plants look like?

Jack Flash marijuana plants have your typical “Christmas tree” shape, with heavy, dense buds, which are dark green in color. The buds are covered in orange hairs and have a moderate amount of trichomes. The trichomes should be clear to cloudy white when they are ready to harvest. If the color is amber, this indicates the plant needs more time to mature!

When to harvest your Jack Flash marijuana plants

If you’re a well-seasoned grower and have been using hydroponics, your Jack Flash marijuana plants should be ready in about 9 to 11 weeks!  Indoor growers should expect a range of 12 to 16 ounces of bud. If you’re an outdoor grower, the yield should be significantly higher around 20 ounces, and should be ready at the end of October, to sometimes in November.

Similar marijuana strains to Jack Flash

  1. Bay 11 is another award-winning hybrid that is balanced. 
  2. Orange Kush will also increase your appetite.
  3. Cheese will also make you feel happy and euphoric.
  4. Sour Kush is a similar strain that has a slight indica edge. 
  5. Tangerine Dream will also help you improve your mood.

Additional information


DNA Crew

Cannabis Species


Flowering Time

60-70 days



CBD Level

Moderate (3-10%)

Feels Like

Creative, Energetic, Focused

Yield Indoors (per m²)

Up to 450g/m²

Yield Outdoors

Up to 600 gr

To Treat

Depression, Pain, Stress


Citrus, Sweet, Woody

Plant Sex


Flowering Type






Skill Level


4 reviews for Jack Flash Autoflowering Feminized Seeds

  1. Rhianna Villa (verified owner)

    Jack Flash is the ultimate creative companion. Growing this strain was easy, thanks to its strong genetics. The high is like a burst of energy, making me feel focused and motivated. The yield was impressive, providing me with plenty of citrusy and sweet buds.

  2. Addison Jarvis (verified owner)

    Great looking bud, just hits the spot every time. Jack flash is a lot like drinking coffee. It’s perfect in the morning or right around dusk. Gives me a great buzz, usually very uplifting. Defeats fatigue without a hitch.
    Took about a week for the 10 seeds I ordered to arrive. West coast seeds all the way on the East Coast.
    Love growing outdoors in Massachusetts. We have lovely summers nobody ever talks about haha!

  3. Virginia Cochran (verified owner)

    Tastes a lot like Jack Herer, and honestly hits quite the same. The only difference (that I can tell) is that this weed has white lightning streaks that run up and down the plant and it’s awesome! Fresh MJ for all when you order your seeds online. Fast shipping and CHEEEEEP prices my friends!

  4. IndicaInfiltrator420 (verified owner)

    Growing this for about 6 weeks now and I think my plants are almost ready to harvest. My plants are quite healthy and strong and I was very happy with the quality of these seeds, all my seeds germinated perfectly and I was happy to not see any of my seeds go to waste.

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