Critical Mass (Mr. Nice) regular

(6)

Great and robust cross between an ancient Afghani and the notorious Skunk #1.

€ 68,00 tax incl.
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Number of seeds: 15 € 68,00
  • Number of seeds: 15 € 68,00
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Mr. Nice - Critical Mass: Old-skool quality cross guaranteeing a great smoke for anyone!

Critical Mass by Mr. Nice is the robust crossing of an ancient Afghani and the notorious Skunk #1. She is a plant that has put herself on the map by promising an amazing yield as well as an amazing effect after the harvest. She is an award-winning favorite for many commercial growers but fairly easy to grow for beginning growers as well. Just be a bit careful with moister because she can be a bit sensitive to mold.

Critical Mass by Mr. Nice is an old-school smoke that hits at exactly the right place, a pleasantly potent overall high that comes with a typical old-school flavorFor a flavour-forward contrast, Black Widow regular hits harder and also arrives as unfeminised seed, so you get males for your own crosses./p>

Critical Mass (Mr. Nice) regular data sheet
Brand Mr. Nice
Suitable for Indoor, Outdoor
Grow difficulty Easy
Parents Afghan x Skunk Nr. 1
Flowering Type Photoperiod
Sex Regular
Flowering Time 7-8 weeks
Yield (Indoor) Up to 750 gr/m²
Yield (Outdoor) Up to 600 gr/plant
Awards 1. Place SCCC 2009
Available as Regular Seeds
Resilience Mold resistant
*Specified by breeder when grown under ideal circumstances
Reviews (6)
    (6)
    12/Jul/2025

    TOP!
    TOP!

    S. S.
    13/Sep/2024

    Legendary strain
    This is probably the best strain ever.

    G. R.
    12/Jul/2018

    THe best!!
    Looking for a great producer look no further.The real critical with the fattest buds and great taste.Pick a mother and go for ever with this one:I got 11 form 18 girls all were good producers but 2 had such a taste and smell that i had to make both a keeper. 600 gr per 600 w is easy if you fit 16 to 20 good clones in 4 ,5 l pots or in hydro

    E. M.
    You cannot post a review because you have not purchased this product
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Critical Mass (Mr. Nice) regular
Critical Mass (Mr. Nice) regular
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All products are intended for legal purposes only and are not for consumption or illegal use. Cannabis seeds are sold as souvenirs, and germination is illegal in many countries—please be informed before purchasing. By purchasing, you confirm that you have reached the age of majority and are aware of your local laws. Zamnesia is not liable for any actions taken in violation of these laws. All cannabis, hemp, mushroom-related, and other products are sold in strict compliance with applicable local regulations.

Nevil, Shantibaba and a Shelf That Still Throws Males

Say you want to stop buying packs every run and keep your own mother instead. That's the job these seeds do. You pop a pack of Mr. Nice, sex the plants, cull the males or keep one for pollen, then clone the female you liked best. If that sounds like homework you didn't sign up for, our wider cannabis seeds range has feminized options like Skunk XL, which hits around 650g/m² in 7-8 weeks without a single male in the tent.

Old-School Genetics, Sold the Old-School Way

Regular Seed Means You Do the Sexing

Roughly half of what comes up will be male. You spot them in weeks 3-4 of flower and pull them, or you park one in a separate space and collect pollen for your own cross. Our own texts name Nevil and Shantibaba as the breeders behind these lines, and the Walkabout pack is literally sold as a selection to walk through until you find a keeper worth cloning. Watch out for the space cost: you need to start more plants than you'll finish, and you need to check them daily once flowering starts.

Skunk #1, NL#5, White Widow and a True Haze

Shark Shock crosses Skunk #1 with White Widow. Super Silver Haze pulls Northern Lights, an original Haze and a Skunk into one plant, and it has been collecting awards since the 90s. Mango Haze runs Northern Lights #5, Skunk and a true Haze, and the sweet mango smell off the main cola is not marketing, it fills a room. Shit is an original Skunk crossed with an ancient Afghani, the same plant other breeders later sold as Skunk #1. Ortega is NL#1 x NL#5, peppery on the nose with a fruity berry taste, and Nordle comes from the Naturals, Old School Genetics series, named after the Afghani hash they called Nordle.

Haze Stretch or Afghan Squat, Pick for Your Space

Critical Skunk finishes in 6-8 weeks and can push 650-800g/m² indoors, though outdoors its aroma travels, so choose your spot with that in mind. NL5 x Afghan stays compact and gives 500-750g/m² in 7-9 weeks. G13 x Skunk does 500-650g/m² in 7-9 weeks on a plant that barely stretches, with some phenotypes wanting a tenth week. Super Silver Haze takes 9-10 weeks, and Spice wraps in about 8 but grows tall, so SOG or ScrOG keeps it manageable. Walkabout is one for outdoor or greenhouse space, since the sativa in it gets awkward under a light.

What We'd Put in the Cart First

Building a mother room? Start with Critical Skunk. It's forgiving, fast, and easy to clone. Chasing that old coffeeshop stone, go for Shit or Medicine Man, both around 8 weeks with dense, calm-smoking buds. Shark Shock is the easy first regular if you've only grown feminized before. One thing to stay on top of across the whole shelf: the tightly packed Afghani-leaning buds on Critical Mass, NL5 x Afghan and G13 x Skunk hold moisture, so keep humidity down late in flower and get air moving through the canopy. Most people hunting the Mr. Nice seedbank come looking for Super Silver Haze, and it's still the one we'd hand a Haze fan with 10 weeks of patience.

Frequently asked questions

Are Mr Nice seeds regular or feminized?

Every Mr. Nice pack we stock is regular seed, so each pack gives you both males and females. That's what you want for breeding, making your own crosses, or picking a mother to clone. If you'd rather every plant flower, look at a feminized strain like Skunk XL instead.

Who breeds the strains on the Mr Nice seedbank shelf?

Our product texts name Nevil and Shantibaba as the breeders behind these lines, including NL5 x Afghan and the Walkabout selection. Nordle sits in their Naturals, Old School Genetics series, named after the Afghani hash they called Nordle. The parent genetics are the classics: Skunk #1, Northern Lights #5, White Widow, a true Haze and Afghani landraces.

Which Mr Nice strain is easiest for a first regular grow?

Shark Shock and Critical Skunk are the two we'd point a newer grower at. Shark Shock finishes in about 8 weeks and takes indoor or outdoor conditions well, while Critical Skunk wraps in 6-8 weeks with huge, dense buds. Dreamtime is also sold as a beginner-friendly selection of Haze, Northern Light, Skunk and Afghan genetics.

Can I order Mr Nice seeds anywhere in Europe?

Yes, we ship across Europe and further afield, packed discreetly with no clue on the outside about what's inside. Orders go out fast, and the seeds are stored properly until they leave us. Keep them cool, dark and dry at home until you're ready to germinate.