(47 customer reviews)

Critical Mass Autoflowering Feminized Seeds

From: $29.99

This well-known strain is indica-dominant and offers up a happy, sleepy high that can kick insomnia to the kurb. You’ll get a nice harvest from this strain, too, though newbies might want to start with a simpler option.

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A strain named for its copious amount of buds, if ever a marijuana could be considered a “warm blanket”, Critical Mass would be it.

With such noble parentage – Critical Mass marijuana seeds are the marriage of the world-renowned Afghani and Skunk #1 strains – these indica-dominant seeds, though remarkably high on the THC range (anywhere from 19-22%), can be your evening’s best friend, offering  relaxation that can help ease chronic insomnia and headaches.

Earthy and sweetly pungent, our Critical Mass feminized marijuana seeds are slightly more complex to grow, and require some careful attention to detail, specifically in the area of humidity: because the buds of this variety tend to be dense, and there is a heavy leaf to flower ratio, Critical Mass plants can be susceptible to mold. But, with the right equipment and some patience, after 50-60 days of flowering, the intrepid gardener can boast about an impressive yield of upwards of 600-700 g/plant.

Wrap yourself in the soothing, therapeutic warmth of Critical Mass – order top quality marijuana seeds now!

Additional information


Coastal Genetics

Cannabis Species



70% Indica / 30% Sativa

Flowering Time

45-50 days



CBD Level

Low (<2%)

Feels Like

Euphoric, Relaxing, Sleepy

Yield Indoors (per m²)

Up to 600g/m²

Yield Outdoors

Up to 400 gr

To Treat

Insomnia, Pain, Stress


Earthy, Sweet, Woody

Skill Level


Plant Sex

Auto-flowering Feminized

Flowering Type






47 reviews for Critical Mass Autoflowering Feminized Seeds

  1. Nathaniel Harmon (verified owner)

    Great weed! Exceeded expectations….I was just happy they were able to ship to my remote location. Turns out they ship all over the country. Yep, all over the USA. Happy I was able to buy and grow online. Makes a world of difference, saves me money and such.

    Thanks for the customer service crew on the great seed suggestions!

  2. Jakob Fitzpatrick (verified owner)

    This indica strain is bomb! It was relaxing after a long day, helping me to fall asleep quick and easy! I was worried about growing these seeds myself, but they were pretty easy, even if you’re not an expert. Since it’s auto, it didn’t take a ton of work, but I think next time I’ll tweak my light levels to get a larger yield. Other than that, everything was fine, and I’ll definitely order some more. Also, the shipping was super fast, so I had my seeds in no time. You can’t beat that!

  3. Alyson Munoz (verified owner)

    This fresh MJ beats all the rest. A smooth indica and the perfect way to unwind at the end of a looooong day. Big wins!
    I am totally new to MJ, and Pacific had some great advice about growing. I learned a lot but there’s still a long way to go! Gonna keep at it!!

  4. BinaryBandit (verified owner)

    Critical Mass by Coastal Genetics is a must-try for any indica lovers. The high THC content provides a euphoric and relaxing experience, perfect for treating stress and insomnia. The earthy and sweet taste is also enjoyable. The yield is impressive, making it a great choice for intermediate growers.

  5. L Müller (verified owner)

    Looking for top-quality autoflowering feminized seeds? Look no further than Critical Mass! This indica-dominant strain offers soothing relaxation and pain relief, making it perfect for those struggling with insomnia or chronic pain.

  6. Andrew Sullivan (verified owner)

    Easy to smoke and very relaxing, critical mass is my go-to grow during the summer months. This weed is a light, easy grow, with beautiful flower and a smooth creamy smoke. It’s the weed I break out when all the homies come over. We laugh it up and pass around the blunt. It’s awesome, tasty, and fresh. Plus the buzz is amazing and killer! Critical mass for life!

  7. Maya Hernandez (verified owner)

    Incredbily useful strain for managing pain, especially joint pain! This was a total shot in the dark. I have never worked with this before, but I have always wanted to grow weed, and thought this was the perfect time to do so! I purchased 5 seeds online, they were fast to ship to my place, like wow! I mean, it was faster than expected, hardly had time to get the soil ready LO: BUT I managed to soak and plant the seeds within a week and they are already waist height!! So far so good, it’s just a really exciting process!

  8. Abi Allen (verified owner)

    Some gorgeous and classic weed that’s easy to grow. I got 15 seeds online and they shipped out in just av few days. It was fast, reliable, and had a ton of color and flavor. Rea;lly happy I got involved with this weed seed company. They really seem to care!

  9. Roosevelt Harper (verified owner)

    This classic MJ from pacific is great for any aspiring weed growers garden. I got 10 seeds online, and they were very affordable! I can’t believe how LOW the startup costs are for getting weed growing at your home. The most expensive part is the LED setup, but if you’re willing to drop about $500 you can get this up and running in no time with some very promising results!

  10. Saira Knox (verified owner)

    The smooth and mellow vibes of critical mass make for an afternoon of fun and relaxation, especially if you have a boat like I do. Yeah, I am a little rich and I like to spend my money on growing marijuana. What a fulfilling hobby! Luckily Pacific is affordable for everyone and they even ship wholesale!

  11. Reece Silva (verified owner)

    One of the more reliable grows you’re gonna find for your garden. Even if you’re totally new to marijuana growing, you will at the very least have some fun with this strain. Big nugs covered in frosty sticky crystals make this a real winner in my book. Perfect for those outdoor garden plots you have no use for!!

  12. Milosz Wall (verified owner)

    The ultimate in cannabis relaxation, critical mass is an easy grow and a mellow smoke for new growers. It’s a fast shipping deal with Pacific, their seeds always arrive within 10 days and look ready to plant. I love the way it makes me feel, and I plan to keep smoking it while I am applying for school. It helps me focus!

  13. Stacey Sims (verified owner)

    Oh I just love this relaxing indica strain. It’s smooth taste really brings my senses to life, while also keeping me relaxed and happy all night long. I have some pretty intense insomnia time to time, and when I do, I just roll up a fattie of this weed and smoke it till I am too tired to keep my eyes open. Has been a good growing experience for me, and I feel like a much more seasoned grower 🙂

  14. Isadora Bridges (verified owner)

    Critical mass will get you feeling light as a feather, and be able to get all your work done at the very same time! It’s a smooth and relaxing indica with a sweet and earthy flavor that makes this easy to grow strain hard to beat!

  15. Nicky Cleveland (verified owner)

    This is one smooth and relaxing weed, and I am a huge fan! I buy 5 seeds every time and germinate them throughout the year to get the best possible yields! I am always stocked on this stuff, and Pacific has the best online selection anywhere! The site is always working perfectly, and there’s always a good strain to be found!

  16. Edan Alvarez (verified owner)

    Had a rough day? This weed will make it all better.

    Bought 5 seeds online, and WOW they just look amazing.

    Such a beautiful grow 🙂 I am so proud of my weed babies 🙂

  17. Alfie-Jay Stacey (verified owner)

    Have known about this strain for decades, but never had the opportunity to grow it. Got recommended this site by a friend. Looks great from over here! Awesome online selection, and a fast delivery. Not TOO experienced with weed, but let’s just say I dabbled in it for some time a few years ago. The wife loves it 🙂

  18. Fabien Jackson (verified owner)

    If you need some fast acting relaxation, then this might just be the strain you are looking for. It’s a seriously chilled out vibe, gets me stoned and makes me smile. I broke a personal record by harvesting over 500 grams of pot, better than anything I have purchased from another site. One of the best chill-out strains online, and very fast delivery!

  19. Brennan Gilmour (verified owner)

    This is some badass weed, looks absolutely amazing, and it’s the most relaxing weed you will ever smoke. I burn through this stuff like a wildfire in California….too soon? I break up this weed into nice sticky chunks and pack a fat bowl! Truly exciting and enticing…can’t wait to buy some more of it.

  20. Cataleya Gibbs (verified owner)

    Critical mass is definitely the best way to relax and it’s gonna blow your mind into a million little pieces and that’s cool cause you gotta get weird at least once a day and I feel like smoking weed is the best time to do that. I will absolutely buy a lot more cause I love this site and all it provides!

  21. Korben Powell (verified owner)

    Critical mass…wow what an awesome buy from Pacific. This weed really helps when you need something exciting to do….like work out in your garden, or smoke weed on the back porch. Freshest and most relaxing indica I have ever smoked. Very sessionable and never gets overwhelming, pretty happy about it 🙂

  22. felicia valentino (verified owner)

    Time to get my smoke on! Had a great experience growing with Pacific. Their seeds are the best in Canada hands down! Fast online shipping and very reliable grow! Made for a delicious after-work treat…and sometimes before work too LOL. Very sweet and kind of bitter, very nice for smoking though ahd holds for a long time!

  23. gemma finkley (verified owner)

    This weed will make your hair stand on end…it’s so chill and so vital to have growing in your backyard. I am a huge fan of this weed for its amazingly relaxing capabilities…just makes stress melt away like ice cream on a hot day….I am very happy to be my own weed provider, makes for a great hobby during quarantine!!

  24. Jason (verified owner)

    Critical mass is a classic…it’s an easy grow, especially for beginners, and it makes for one heck of a harvest. I have never had so much weed in my life. It’s something worth holding onto for sure, suuuper fresh and it holds really well in these mason jars in the basement. I am set for the apocalypse for sure!

  25. Mason (verified owner)

    Finally, a weed seed delivery company you can rely on! I was so impressed with their products that I just had to buy a few strains, this was one of them. I got a GREAT yield from this one in particular..it’s got this beautiful bronze and green color scheme and it is absolute magic for smoking in bed before you go to sleep. Has helped me tremendously with insomnia!!!

  26. Rest a Sured (verified owner)

    A lovely strain that never lets me down. I smoke this to be all happy and content at the end of the day when I feel usually most stressed and depressed, but there’s nothing better than packing my bowl and getting real stoned and watching some Netflix. It never gets old! Growing this was a breeze and everyone should try it!

  27. Essential (verified owner)

    The mass is fantastic. It’s like the most critical part of my day, smoking this weed before work or after work, or at night when I am chilling with my buddies. I really enjoy the sweet, earthy taste, and you can smell this stuff up the street it’s so strong. It’s one of the easier grows I have ever taken on. Gives me huge gorgeous flower after about 5 months of care, but well worth it. Growing your own weed definitely saves money!!!

  28. YMCA (verified owner)

    Happy, hungry, then sleepy, that’s how I would describe this weed. It’s a potent indica strain that helps with stress and anxiety, and sometimes even puts a smile on my face. I got my 3 seeds delivered from Pacific and grew them in the backyard. Truly a beautiful plant, its flowers are gorgeous and full of color, and the taste is somewhere between pine and citrus. It’s a mellow high, doesn’t get overwhelming or make me paranoid. If you love weed then you’ll love this strain!

  29. Ferb (verified owner)

    Who says you can;t grow your own weed? It’s the new trend out here in the PNW and I got real lucky and decided to grow it out in my backyard for the first time. GREAT ordering pot seeds from Pacific, fast delivery, and 100% germination too. The smell is very woodsy and pine-like and it gets me wicked stoned! I smoke this right before going to bed, helps me with pain and stress and insomnia. I have been sleeping better than ever before!

  30. wolf (verified owner)

    When I need to relax I take a few tokes of the critical mass and feel much better 🙂 It’s a nice indica blend that gets me really high but doesn’t make me groggy because of the sativa in the background. It feels like it slows downtime and increases my heart rate a little bit, but my mind is just floating in a pool of jello! Great for chilling out after work, and much better than drinking alcohol. I think this is a pretty fun grow too, although I really don’t know what I’m doing.

  31. junktaur22 (verified owner)

    I don’t wanna say I’m a pro at growing weed, but I have been doing it for years. I have grown this strain in the past but this was my first time ordering with Pacific. Very high quality seeds, 100% germination and a high yielding plant overall. Love the way the buds formed on this batch, nice and dense and easy to clip clean. Love smoking this myself but also enjoy sharing with friends. Had some nice times around the bonfire with this weed. Great stuff!

  32. Phung G (verified owner)

    This is an excellent weed, truly a living legend among the stoner community. It’s very easy to grow, does well indoors and out, and offers up nice sized yields every time. I personally smoke this in the evening to help with stress and anxiety, also helps me sleep. Thanks Pacific!

  33. Allan Garcia (verified owner)

    One of my favorite weed strains for sure! I love how easy this stuff is to grow. Gives off a great yield and has amazing buds after just 4 months. It’s a really nice indica strain, helps me relax and beats the stress right outta me. I sleep like a baby and will definitely be back for more!

  34. Delaney B. (verified owner)

    Where can you find the best seeds in the usa? Pacific seed bank of course! I’ve been ordering from these guys for years, they’re seriously amazing and the seeds ship out super fast! Easy to germinate my 3 seeds using the paper towel method and got 3 huge tall bushy plants with huge nugs! This buzz will make you very relaxed and happy, great for mood and stress!

  35. Hannah F. (verified owner)

    I live in Seattle and it’s so weird that pot isn’t legal everywhere in the USA yet! I mean, come on, guys, let’s get this legalization thing done! Even though there are pot dispensaries around here, I still like to get seeds online and grow my own. You never really know what you’re getting at the dispensary, but if I grow my own pot, I feel more certain about what I’m smoking. Anyway, Critical mass is what I consider to be a classic mj strain and gives a chill and relaxing high. I think I’ve perfected growing critical mass becuz the yield I got with my last crop was so good! 600 grams! Love the seeds from Pacific and am already planning my next order from them.

  36. Liam A. (verified owner)

    I suffer from chronic pain that often keeps me up all night. I got tired of taking a cocktail of sleeping pills and pain relievers, because along with all of the pills, I also had to take antacids because all of that crap just didn’t sit well in my stomach. A friend suggested medical marijuana and it has changed my life. Critical Mass is one of my favorite strains to help ease my pain and help me fall asleep. Growing it on my own has helped make it more affordable and I can’t recommend it enough!

  37. Connor M. (verified owner)

    I’ve grown both the feminized and the autoflowering variations of this cannabis, and I’ve gotta say, I’m impressed with both. But specifically the autoflowering variety was easier to grow with a short flowering time of about seven weeks and an excellent yield for an autoflowering plant. My advice is to keep the heat up and the humidity down for the best results. 5/5 for PSB for quality of seeds and shipping speed.

  38. Zacharia J. (verified owner)

    Love this for some nice relaxation after a busy day. I also use it for medical reasons, I get bad headaches and a smoke or two of this really relieves pain for a few hours. This cannabis strain has heavy buds and I got some mold on one of my plants unfortunately. But the work for this one is worth it, very relaxing and therapeutic feeling when smoked.

  39. Abe F. (verified owner)

    Ordered seeds from Pacific, and again I got some rock solid plants from them. This might become my largest yield ever. But let me back up. First off, shipping was right on time, as always. Packaging was done carefully, which was much appreciated. Labeling was also very discreet. My seeds all germinated quickly without any problems. My plants have plumped out so nicely — lots of dense buds that showed crystals all over. They’re not quite finished yet, but I can’t wait to harvest and smoke this awesome weed!

  40. Henry H. (verified owner)

    I have been growing this strain for many years but this was my first time ordering online with PSB. Delivery was fast and reliable, and ordering wholesale came at a great price! I am a commercial grower on the Olympic Peninsula, and I find this strain to be an excellent seller with a consistently high yield. I avg. around 600 G per harvest and given its high THC content it is often in demand at area dispensaries. Storage can be a problem as this strain doesn’t keep for too long without developing a mold problem, but usually this stuff is flying out the door anyway. Would buy again!

  41. Alexa R. (verified owner)

    Setting aside the growing experience for a moment, this is an excellent strain for medical and recreational users, IMO. The buds are indeed massive, and massively potent. I grew some for my wife and me, plus gave some to a friend with chronic back pain. We’re all happy as can be with this cannabis.

    The aroma’s pretty pungent (“just say it stinks” coaches my wife). Effects are immediate and pervasive. A mostly body-based high, with lesser psychoactive properties. Not a good AM weed, to be sure.

    As for growing, it wasn’t that difficult, once I got the humidity right. But not as easy to grow as the couple other strains I’ve tried. And as far as dealing with Pacific, easy as pie. So there you go.

  42. Allen C. (verified owner)

    Really great yield! Great quality seeds, almost all germinated. Only one didn’t, but I think that one was my bad. Never gotten a bad batch from Pacific. This was my first time ordering Critical Mass and I think I’m in love. The grow was easy and pacific’s customer service was great with all of my questions. Gonna order this one again!

  43. Brianna W. (verified owner)

    Aside from having to prop up some branches (which is arguably a good thing bc it means there are critical amounts of weed!) I had a really easy time growing critical in my indoor set up. I used soil for the record so idk how it does with hydro but in soil it was a breeze. I noticed if I smoke a *lot* of it I start to get paranoid but if I keep the dosage mellow it’s a really awesome high that helps me get to sleep at night without feeling groggy in the morning.

  44. Sophia R (verified owner)

    This strain was a bit above my grade level — I guess I’m still a beginner because I had a bit of trouble on this one. Luckily I was able to get some help from a friend and everything turned out okay. I think next time I try it my yield will be better, but it wasn’t so bad considering the fact that I almost botched it. Flowering time was a little shorter than I’ve experienced in the past which I felt was a plus. Quality seeds though and will purchase again.

  45. Darren A. (verified owner)

    Great weed grows from great seed. And this is great weed. Big ol’ nuggets of resiny flowers, dripping with sweet relief from life’s troubles and travails. I’m a longtime smoker but short-time grower. Mainly cuz I didn’t know where to get good seeds. These seeds are good indeed, and honestly, they pretty much grew themselves. I wouldn’t hesitate to order again from Pacific.

  46. Asher G. (verified owner)

    Yeah, it definitely helps to know a thing or two before you take on the critical mass plants. Like if you’re in a humid place, you gotta watch for mold. But if you’ve got lots of experience, the flowering time on these ladies is the shortest your gonna find. You have buds before you know it and if your growing indoors you can harvest mutliple times a year. And the yields are YUGE. Love these seeds! Ordering another round!

  47. Brecken E. (verified owner)

    Hey there, this was my first time with PSB, but was really happy with my buy! This is an excellent strain, a very relaxing indica that’s pretty easy to grow and in a relatively short amount of time. The trichomes are super bright and green and orange and the yield was pretty nice too. I usually smoke in the evening to deal with stress and anxiety, helps me with sleep and headaches as well!

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