Critical Mass Collective Seeds

At Critical Mass Collective we put each strain through rigorous testing programmes and will not consider a strain "Critical Lee acclaimed" until it has scored effectively and consistently in numerous categories. All CMC seeds are produced under legal conditions, organically, using perfectly balanced AACT with the help of our friends at Humboldt Earth Tech. They are then hand selected to ensure maximum viability and quality. All CMC seeds are kept in large temperature and humidity controlled vaults maintained at a constant 6-8 degrees Centigrade- the perfect climate to keep them fresh and viable. We also run smaller but more frequent batches to ensure a good turnaround of fresh seeds. Each batch of CMC seeds are carefully hand selected and packaged in sterile, pyrogen-free polypropylene vials. The seeds are protected from impact by cotton wadding and a colour indicating silica desiccant is added to ensure maximum viability and perfect humidity in storage. Finally we add a unique serial number to each vial to manage and control batch origin.
Alien Masster Kush

Alien Masster Kush

Often Described as "odd", the profile of this Alien leaning Monster is a complex nose of chemical cleaner, classic Kush, body-odor and sour berries wh...
£4.10

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Auto Blutonium Mass

Auto Blutonium Mass

SMELL: Wild Blueberries, flora and fruit are all here just like the photoperiod version.. the Nuken adds a sweet, nutty, marshmellow element that is v...
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Auto Mendo Mass

Auto Mendo Mass

This strain has a grape and black liquorice scent and packs a THC level of 19%, which makes her one of the strongest Auto Purple strains available tod...
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Auto Monolith Mass

Auto Monolith Mass

Old school Skunk and super strong hash... think 80's hippy trail nostalgia. We have created an Auto version of this classic Indica that exudes the sam...
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Auto Monster Breath

Auto Monster Breath

There is a savoury quality on the nose with this beastly Auto; a full-on skunk odour with hints of sour citrus mingled with earthy soil and wet dog. ​...
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Auto Monster Mass

Auto Monster Mass

This is the long-awaited auto-flowering version of Critical Masses’ flagship strain Monster Mass. She exhibits a sweet and full floral taste and smell...
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Auto Purple Dawg Mass

Auto Purple Dawg Mass

The Auto version of Critical Masses’ Purple Dawg Mass holds all the stopping power of the photoperiod version. The musky Kush, peanut butter, pine, an...
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Auto Purple Dawg Mints

Our original Purple Dawg was the result of our beloved mother strain Monster Mass, a sweet, musky Lavender and a fuel focused Purple Chemdawg. The rar...
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Auto Purple Gorilla Dawg

Our original Purple Dawg was the result of our beloved mother strain Monster Mass, a sweet, musky Lavender and a fuel focused Purple Chemdawg. The rar...
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Auto Purple Skunk Mass

Auto Purple Skunk Mass

This beautiful, quality strain incorporates superior Big Bud Auto genetics with Critical Masses’ mighty Monster Mass and a musky and sweet Lavender. I...
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Auto Sour Melon Mass

Auto Sour Melon Mass

This auto-flowering hybrid brings together Critical Masses’ beloved Monster Mass, an exotic and powerfully sour Sensi Star, and their own CMC Big Bud ...
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Auto Super Mutant Mass

Auto Super Mutant Mass

Super Sour Skunk and exotic wood make up the smell profile of this showstopping auto, much like its photoperiod version but with more emphasis on the ...
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Blutonium Mass

Blutonium Mass

A strain of Nuclear proportion and power! Our mighty Monster Mass gets a Blueberry fuel injection. Forged from our signature Monster Mass, crossed wit...
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Cali Mango Mass

Cali Mango Mass

As with the smell, Cali Mango Mass leaves a sweet, earthy, mango and Skunk flavour, with hints of vanilla and ice cream. These blend into a creamy, co...
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Megaton Mass

Megaton Mass

Our Megaton is essentially the same strain as our Monster Mass in both smell and taste, just ultra fast! This strain is well known for its spectacular...
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Monolith Mass

Monolith Mass

Old school Skunk and super strong hash... think 80's hippy trail nostalgia. We have created an Auto version of this classic Indica that exudes the sam...
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Monster Mass

Monster Mass

Monster Mass is an Indica-dominant variety from the Critical Mass Collective. She boasts a wonderful aroma of fruit and pungent skunk. Its taste is an...
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Moonshine Mass

Moonshine Mass

Moonshine Mass is a Sativa-dominant variety from Critical Mass Collective. It came about by crossing Monster Mass with an old-school Haze. She exhibit...
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Psychotropic Mass

Psychotropic Mass

Psychotropic Mass is an Indica-dominant variety from the Critical Mass Collective, with genetics comprising Monster Mass x Cannatonic X. She boasts a ...
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Purple Dawg Mass

Purple Dawg Mass

Purple Dawg Mass by Critical was created by crossing Monster Mass x Lavender x Purple Chemdawg. A few complex flavour profiles are noted, including acri...
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Purple Dawg Punch

Our original Purple Dawg was the result of our beloved mother strain Monster Mass, a sweet, musky Lavender and a fuel focused Purple Chemdawg. The rar...
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Purple Skunk Mass

Purple Skunk Mass

Purple Skunk Mass is a mostly Indica variety from the Critical Mass Collective. It was created by crossing Monster Mass x Lavender x Afghani Skunk. Sh...
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