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Critical Mass Regular
€68.00
4.71/5
(14 Ratings)
Critical Mass is a combination of a very special phenotype from Skunk 1 with an Afghani strain, creating the perfect cross. Critical Mass by Mr. Nice is the most heavy plant you can grow indoors.
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Data sheet
Bank
Mr. Nice
Seed type
Regular
Available individually
No
Recommended use
Medicinal
Recommended growing environment
Outdoors
Cannabinoid profile
THC-dominant
Genotype
Sativa-dominant
Physical effect
Heavy
Psychoactive effect
Relaxing
Indoor Flowering Time
7-8 weeks
Outdoor Harvest Time
60+ days after germination
Flavor
Sweet
Flavor 2
Earthy
Climate
Dry/Low humidity
Description
Critical Mass by Mr. Nice is known world-wide for its massive yields – this is the original cannabis strain from which every seed bank has made their own Critical version. This strain is perfect for those looking to get the most out of their indoor/outdoor grow. Its incredible central stem grows few side branches along the bottom – this plant produces some pretty beautiful buds.
The mix of this legendary marijuana strain comes from a strong and vigorous afghan strain and the Original Skunk #1.Likewise it can be considered as a better version of the Big Bud. All of these different names and mixes grant it different properties that makes it one the most classical strains used by growers and consumers.
How to grow Critical Mass cannabis seeds
Learn to grow indoor
You can place 4-9 plants in flower plots of 7-11 L under lamps. With these measures you can obtain up to 550 gr/m2 after 45-55 days after flowering. The optimal conditions will allow you to obtain easily, plants up to 1.2-1.6 metres with a big central bud. Check out Square Flower Pots In All Sizes to see which ones adapt better to your needs.
Learn to grow outdoor
Outdoors is where it's true potential shines, being able pass the 2 meter mark in height, with an impressive bud.
Because of their impressive weight, these plants will very likely need stakes to guarantee their desired growth. The ideal time to harvest is mid September,where you will obtain perfect buds and large numbers of plants along all the branches, with a yield up to 800 grams per plant properly taken care of.
In regards to the climate, if the place you are going to grow into has short and rainy summers it is imperative you install a greenhouse. This is necessary as the plant's compact structure and voluminous flowers makes it susceptible to mold or fungus which would wreck your plant.
Flavor and effects of the critical mass strain
Flavor and aroma
The flavors and aromas that come from this plant can be described as a sweet earthiness, as well as sweet and floral notes that remind you of nectar, roses and orange blossom. Similarly you can also appreciate some peach and apple hints, as well as some sour and citrus undertones. This is why this strain is considered as one of the best.
Effects
It’s near perfect indica sativa balance grants you euphoric, relaxing, happy and pleasant sensations. You will start with a cerebral high thanks to its sativa predominance, which will trance into permanent happiness during the next hours.
The same way that its indica side will also induce relaxing and sedative effects that will combine with the euphoric notes to reach that couch lock high. This is why this strain is highly recommended to treat illness (anxiety or stress).
Important Data Critical Mass
- Sativa/Indica: 60/40%
- Flowering: 45-55 days indoor, mid September outdoors.
- Height: 1.2 m-1.6 m indoors and 2 m outdoors.
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28/09/2025
Awesome strain. The yield is impressive. A 'must'.
Translated from Spanish
Tremenda genética. La producción es impresionante. Un 'must'.
28/09/2025
Flawless! The yield is excellent. I love this strain.
Translated from French
Impeccable ! Le rendement est excellent. J'adore cette variété.
17/09/2025
Absolute beast! Yields are incredibly good. Always a solid choice.
06/09/2025
Safe bet for relaxing. I love the effects. Really good.
Translated from Spanish
Apuesta segura para relajar. Me encantan sus efectos. Buenísima.
04/09/2025
Germination was fast, very fast. It grows well, a bit too vigorous at first if you don't prune. Has anyone had problems with males on regular seeds before? I have to be careful.
Translated from French
La germination s'est faite vite, très rapidement. Ça pousse bien, un peu trop vigoureux au début si on ne taille pas. Quelqu'un a déjà eu des problèmes avec les mâles sur des graines régulières ? Je dois faire attention.
01/09/2025
A classic for me. Always a solid choice when you want heavy yields. Excellent!
Translated from French
Un classique pour moi. Toujours un bon choix quand on veut du poids. Excellente !
14/08/2025
A question, does it handle humidity well?
Translated from Spanish
Una pregunta, aguanta bien la humedad?
06/08/2025
Germinated super fast, popped up in a couple of days. Growth is a bit slow at the start, but then picks up steam. We'll see flowering, hope it doesn't disappoint.
Translated from Spanish
Ha germinado súper rápido, en un par de días ya asomaba. El crecimiento al principio es un poco lento, pero luego coge fuerza. Veremos la floración, espero que no defraude.
31/07/2025
Heavy hitter. Perfect for chilling out after a long day. Love it!
19/07/2025
Germination was quick, popped in no time. Vegetative growth was strong, a bit bushy, needed some defoliation. Flowering is looking promising, really packing it on. Any tips for the final weeks for maximum weight?
03/07/2025
Safe bet Critical Mass, doesn't disappoint, very good.
Translated from Spanish
Apuesta segura Critical Mass, no decepciona, muy buena.
24/06/2025
Hands down the strongest Critical from Mr. Nice.
Translated from Spanish
Sin duda la Critical más potente de Mr. Nice.