(13 customer reviews)

Critical Jack Autoflowering Marijuana Seeds

From: $29.99

Critical Jack is a 50/50 hybrid that provides a light smoke with long-lasting cerebral effects, making you feel creative, energetic, and uplifted.

  • 3 Seeds
  • 5 Seeds
  • 10 Seeds
  • 25 Seeds


Can’t decide between an indica or sativa experience? Go with Critical Jack marijuana seeds. This strain is a perfect 50/50 hybrid that delivers the best of both worlds. That being said, many consumers note that Critical Jack’s effects lean toward the sativa side — more energizing, awakening, and mentally stimulating than a true indica. In its true form, this strain is a cross between Critical Plus and Jack Herer. It usually carries a THC level of 20%. Critical Jack has been immensely popular in Europe and has since made its way overseas.


Why choose Critical Jack? Not only is it the perfect daytime smoke, but it’s also easy to smoke for beginners who want to avoid that nasty cough. The smoke of Critical Jack is light but long-lasting. A little goes a long way with Critical Jack. A few puffs in the morning before work can last way past lunchtime. Critical Jack is a great strain for busy men and women on-the-go who need something uplifting and productive to get them through the day.

Additionally, Critical Jack marijuana seeds provide many medical benefits. This hybrid can help treat headaches, depression, anxiety, and a lack of appetite. Critical Jack marijuana plants mature relatively quickly with flowering time between 57-67 days when grown indoors. If grown outdoors, you’ll want to get started in mid-April and harvest in late-September.

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Additional information


Norcal Farms

Cannabis Species



50% Sativa/50% Indica

Flowering Time

50-60 days



CBD Level

Low (<2%)

Feels Like

Euphoric, Focused, Happy

Yield Indoors (per m²)

Up to 500g/m²

Yield Outdoors

Up to 800 gr

To Treat

Anxiety, Depression, Pain


Citrus, Spicy, Sweet

Skill Level


Plant Sex

Auto-flowering Feminized

Flowering Type






13 reviews for Critical Jack Autoflowering Marijuana Seeds

  1. Jorden R. (verified owner)

    I’m so impressed with the trichomes on my buds! It looks like they got rolled around in a fine dusting of sugar crystals. So lovely! Just got my first. smoke of critical jack and I really like the way it makes me feel energized and focused and like I can get everything done that I need to with me day. I only grew a few of these plants so I think I’ll order some more seeds and grow a few more.

  2. Nevaeh O. (verified owner)

    Kind of interesting flavor with this weed. Sort of citrusy but earthy and woody at the same time? I really like the high from critical jack and so does my partner. Gets us both relaxed without making us sleep right away. We’re up talking and giggling and having a great time. Also good points for Pacific for sending some really nice looking seeds that grew up into some well-yielding healthy plants.

  3. Damien A. (verified owner)

    A very balanced buzz that’s great at any time of day, worth the growing time and the yield is super stellar, can’t wait to share this with my friends. The bud is huge, has a nice yellow color to it, and is actually very easy for beginner growers to get started on. I can’t think of a better weed for those who love to have a good time without getting tired out!

  4. Ryan S. (verified owner)

    I’m an incredibly busy person so I was looking for an autoflowering cannabis that had a few qualities: A) I could grow weed with relative ease, B) It wouldn’t prevent me from getting work done, and C) It didn’t have that stigma associated with an autoflowering yield. Critical Jack certainly met all of my expectations! I harvested a good yield after about 8 weeks of flowering, and the high is very pleasant but not overwhelming for those of us who want to mix work and play. Excellent choice.

  5. Carlos B. (verified owner)

    Grew this stuff right in my backyard and WOW in just 3 mo ths I am looking at a gorgeous mary jane plant!! These crystals are dense and yellow…they look like popcorn, yummmmm! Harvested almost 600 G which is CRAZY and have been smoking it ever since….Such a nice balanced buzz and so low-key, this stuff gets you stoned AF but doesn’t knock you out. I LOVE sharing this with my friends on a weekday night, just chilling on my couch. What a treat to finally have my very own MJ!!

  6. Stuart H. (verified owner)

    The best marijuana seeds I’ve come across are on PSB. Great quality, great germination rates, I’ve been very happy ordering mj seeds from PSB!
    It took a bit of time to get the dosing just right for the mighty Critical Jack. At first I took too much and it kind of gave me a headache. I learned I only need two puffs in the mid-morning to last me nearly the whole day. The high is really unique and lovely; it’s like a spark that burns all day in my brain. In a good way of course, LOL! Love Critical Jack, gonna order some more when this batch is through.

  7. Dante G. (verified owner)

    This weed hardly even looks like a weed plant lol, more like an exotic yellow flower from a tropical island! But very tasty and delicious smoke for a lovely balanced high that breaks down your inhibitions and makes you want to talk or draw or even just chill out and watch a good movie. Like smoking at work? This weed can help you stay awake and focused, but also relaxed, smoke before your big meeting or whatever, you’ll feel great and very confident. Anxiety really melts away on this weed, great buy!

  8. Hershel Schaefer (verified owner)

    If you need some fast acting relaxation and pain relief, this weed might just do the trick. It’s wicked good for helping me after work with joint and back pain, and it’s been really helpful at night if I am having trouble sleeping. I grew it in my backyard and want to do it againg and again, it looked amazing I am serious. Thanks PSB!

  9. Margaret Q. (verified owner)

    This weed is critically delicious and has some amazing vibes about it. It’s super easy to grow and manage, no complications, and when it’s fully mature you’ll love its HUUUUGE green nugs! I smoke this in the evening to help me unwind and relax, and finally I feel much less stressed about life and am thinking more positive thoughts. Great buy for sure!

  10. bertram (verified owner)

    This weed actually helps me a lot at work. It’s a nice, easy lunchtime smoke, doesn’t have too strong a scent so if you roll a spliff you’re in good shape. It’s got a nice mental buzz, helps a lot with stress and fatigue, gets me in the “zone” you know? I got 3 seeds online, had them shipped to my place in LA and got them growing in these huge pots I bought, they actually did really well, kinda surprised, but hey glad it all worked out!

  11. Amigos (verified owner)

    I finally got my grow space all set up in the backyard…it looks really beautiful with my new little weed plants in the soil. They’re beautiful…watching them grow. They started out so small and now they are waist height. Got a really nice yield off my last batch though, and I came back for more! This weed is really relaxing, helps me deal with stress and depression, especially good after work, when I can finally just sit at home and chill out. Definitely worth the buy!

  12. David Ash (verified owner)

    The flower from this weed is super yellow and kinda looks like popcorn. I really like this stuff, it’s a perfect hybrid split, great for my stress and depression. I smoke it in the afternoons and evenings, it’s pretty great any time of day….helps take the edge off, and it smells pretty darn nice as well, pretty earthy and woodsy, maybe a little sweet. Love sharing this with friends and family, good buy!

  13. Nike (verified owner)

    It’s real nice weed that helps me with social anxiety. I got 3 seeds from pacific and grew them at home. First time ever! Great buy with a lot of potential for new growers. I really enjoyed the smell and flavor, shared with my girlfriend and we always have a good time. It’s pretty chill, not really a party strain, but nice for listening to music or watching Netflix!

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