(15 customer reviews)

Black Jack Autoflowering Feminized Marijuana Seeds

From: $29.99

When you gamble with Black Jack autoflowering marijuana seeds you always win – an indica dominant hybrid with 18% THC, you’ll enjoy blissful relaxation after a relatively short flowering period.

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


One thing you’ll notice – and love – about Black Jack autoflowering marijuana is the strain’s dense, compact buds that are just completely covered in sticky resin. Delivering a decent mental high coupled with a full-body relaxation, this indica-dominant strain is beautifully balanced, ideal for both recreational and medicinal purposes.

Even though it’s relatively high in THC (ours usually tops out around 19%), Black Jack autoflowering marijuana is great for patients looking to relieve stress, anxiety, and other mental health concerns, including conditions like PTSD. While it can work wonders for treating aches and pains, it’s sedative qualities (thank you indica) make it a wonderful choice before bedtime.

Far from sweet, Black Jack autoflowering marijuana has an earthy, woodsy smell with hints of pine, though the taste carries a little citrus which can stick around after you exhale. This is good information to know, since Black Jack prefers an indoor environment. Inside, it will reach a medium height, but needs lots of excellent airflow and space to breathe, not to mention high quality light and a warm, humid climate. Grown indoors, you’re likely to harvest around 400 grams per plant after 50-60 days of flowering.

When you gamble with Black Jack autlfowering marijuana seeds, you never lose – order now!

Additional information


Coastal Genetics

Cannabis Species



70% Indica/30% Sativa

Flowering Time

50-60 days



CBD Level

Low (<2%)

Feels Like

Euphoric, Happy, Relaxing

Yield Outdoors

Up to 250 gr

To Treat

Depression, Pain, Stress


Earthy, Flowery, Pine

Skill Level


Plant Sex


Flowering Type






15 reviews for Black Jack Autoflowering Feminized Marijuana Seeds

  1. Estevan I. (verified owner)

    OHHHHHH yeahhhhh. Some indica with a hint of sativa? Sign me up. Can’t wait till my ladies are ready to harvest. I’m a couple weeks in and they lookin soooooooo goood. My seeds all popped and sprouted before I was even ready. Hahaha, a good sign there! Since then they been looking pretty and healthy and I can’t wait to pick some bud! Good seeds for a good price!

  2. Pauline A. (verified owner)

    I’ve grown about 10 or 12 varieties of cannabis now, getting seeds from different sources, including Pacific. This strain came out among my best in terms of yield (the amount of buds) and also the quality. I like to have parties where we try out my latest efforts and compare. According to my friends, Black Jack is about the best-looking and best-tasting herb I’ve grown. A couple friends said they planned to order some themselves.

  3. Coen I. (verified owner)

    I know some cats like a nice sativa weed for that eurphoric, crazy good high that sends you off into outer space. Other folks like indica pot to calm and chill the eff out. I really like a hybrid, I like some uplift mixed with some relaxation, especially ones that hit my entire body. Blacky Jacky is perfect for that. When I see those awesome dense, sticky buns, I start anticipating the wonderful high that is soon to come. And Black Jack flowered pretty quickly – in about 47 days, so I didn’t have to wait all that long! FANtastic indoor grow, black jack is always a good time.

  4. Dylan P. (verified owner)

    Super high quality dense buds! My seeds came packaged and perfect as always. I’ve had great luck with all of pacific’s seeds, and Black Jack germinated quickly and reliably for me with no problem. Really easy to grow indoors and grows quickly. You’re harvesting before you know it. Love the packaging, love the discreet labeling. Customer service here is A+. Great place to order online from.

  5. George A. (verified owner)

    This plant is a taaaaaalll drink of water so make sure you have plenty of room indoors or outdoors if you’re gonna try growing. Gorgeous, beautiful dense hairy purple nugs budding out from each cola made harvest time an absolute delight, it’s one of the prettiest weed strains I’ve ever tried growing. Def heavier on the indica side super relaxing and calming smoke, plus thc less than 20% so it doesn’t get you too lifted when it’s time to get to bed you’re not dealing with racing thoughts and anxiety. A+++

  6. Lucas A. (verified owner)

    A great beginner’s grow with some SERIOUS relaxation benefits. Looks great in my garden with it’s beautiful purple sticky buds! Pretty strong on the nose, but I don’t mind, I happen to Love the smell of this weed. I smoke usually before bedtime, right before watching a movie, and then usually pass out on the couch lol. The weed tastes very earthy and a little sour, so it really hits the spot after a long day at work. Highly recommend!

  7. Furie E (verified owner)

    So resiny! Just absolutely sticky and dense and good. 🙂 I grow for medical reasons and Black Jack has easily got to be my favorite strain. This weed is EXCELLENT for treating anxiety. Flowered in about 9 weeks on an indoor system. Easy going and got good results. Can’t say enough about the high tho. Deep purple buds with a sedative vibe like no other. Felt my anxiety unwind until I forgot was I was feeling anxious about. And I struggle hard from anxiety. Black Jack is by far the best thing to calm down those voices in my head that won’t quit.

  8. Billy B. (verified owner)

    I’ve never ordered cannabis seeds online before and I don’t know what took me so long. Can’t beat the convenient delivery and the discreet packaging from PSB. It was a piece of cake.
    Growing this was a bit challenging, I needed more light than I originally thought I would. But once I got that sorted, it grew like a weed (pun intended). Turned out wonderfully and the high of this mj is divine! Feel totally relaxed but not checked out.

  9. Judy W. (verified owner)

    These flowers came out great. I’m so proud of myself. First time we smoked it my husband was like, “Whoa! I can’t believe you grew this pot!” Friends were impressed too. The buzz is really, really nice. Only thing I would say though, it can make you sleepy if you have too much. I doubt I’ll ever buy marijuana again, now that I can grow it.

  10. Noah R. (verified owner)

    Hate to admit it but I love to gamble haha, so I took a gamble on this strain and thankfully I WON! Have a small grow op in my basement and glad I tackled this strain indoors, I think it woulda been a pain to grow outdoors cause it can be a bit fickle about its environment. Buut luckily I know what i’m doing haha and got a solid 350 G from the first grow. The high is super chill, mostly a heady buzz, but it chills you out at the same time, plus the flowers are purple and beautiful and sticky! Roll the dice on this one!

  11. Linda D. (verified owner)

    Absolutely love this strain. I use mj for medical reasons (chronic pain in my hands) and Black Jack is a nice heavy dose of awesome relief. The affect lasts so long, too – for hours, easily. Which I really appreciate cuz the less pain I have in my hands, the better. Good seeds and fantastic weed.

  12. Jordan X. (verified owner)

    Black Jack carries a really nice, earthy, woody scent with it while it grows. Definitely doesn’t overpower an indoor setup. The buds alone are worth growing this strain – super purple and covered in trichomes make for a really beautiful mj plant. I got a sizeable yield for an indoor crop.

    Smoking is really pleasant, with 70/30 indica/sativa it’s the best for late nights when I’m getting ready to relax.

  13. Ethan C. (verified owner)

    I’m a vet and I’ve been trying medical marijuana to help me with some lingering PTSD. Good adequate sleep has been difficult for me to get, and even though I have a prescription for some really potent sleeping pills, I’ve found they haven’t been that helpful when it comes to the quality of my dreams. With Black Jack I can get good solid sleep without disturbing nightmares. This weed has literally been a godsend. If anyone out there has similar issues I’d recommend giving this strain a try.

  14. Tommy H. (verified owner)

    An amazing weed for anyone who needs help unwinding at the end of the day! Plus it’s pretty fun and easy to grow, though the yield can be a bit sparse if you don’t know your way around weed. Awesome looking nugs, bright green and purple and coated with resin! I love smoking this stuff with my buddies after work, a great way to chill out and have a great conversation!

  15. Aubrey D. (verified owner)

    This weed is some of the tastiest stuff on the market, an amazing strain with a lot to offer those of us who can’t unwind at the end of a long day. Such an easy grow, and getting my seeds from PSB was a real treat, they have an amazing selection! Grew in my backyard and got a really solid yield, the perfect nighttime strain, great for headaches and sleep!

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