Monster Mass
Monster Mass is an improved Critical Mass that can yield up to 800 gr/m2 inside in 50 days or less and 900+ gr/seed outside by the middle of October. Plus, she measures in at an astounding 20% THC and manages to squeeze out one of the most intense fruit flavours that'll ever slink its way across your lips. Is it any wonder Critical Mass Collection centered their entire line around this fab strain? We think not!
  • 100% Feminized Seeds
  • Astronomical Yields
  • Kick-Ass Power
  • Finishes in 45 to 50 Days!
Free shipping and seeds
Free shipping and seeds

Monster Yields, Sublime Sedating Highs, Luxurious Flavous - 45 to 50 Days!

Monster Mass is, in a word, amazing! Try as hard as you want, but we promise you will not be able to pick out the single best thing about this incredible feminized seed. The THC is fierce at 18 to 20%, the yields are unbelievably high at 800 g/rm2 inside or 900 gr/seed outside, and the finishes are shockingly early - beginning of September outside and as fast as 45 days inside. See what we mean?

  • Monster Mass Yields up to 800 gr/m2 Inside!
  • Finishes in a Very Fast 45 to 50 Days - Under 7 Weeks!
  • Hardy & Resilient with up to 20% THC
  • Critical Mass & Critical Plus Genetics!

As you go down the list, Monster Mass Cannabis Seeds just get better and better! Next up, the flavour & aroma. Both are sweet and fruity, but the sugary taste has subtle hints of blackberry, cola and kush while the fragrance has threads of Skunk and sweet Hash running through the stronger scents. The effects are simply spectacular with a long-lasting sedating effect that can keep going for upwards of 3.5 hours. Fantastic!

A Real Beast with Gargantuan Yields & a Fierce, Fruity Essence!

NB: If you're looking for the full Critical Mass Collective range at the best prices possible, you've just landed on the right page! Here, you'll get the best deals on Monster Mass, Auto Mendo Mass and all the rest of these fabulous cannabis seeds.

Recommended Indoor
Recommended Outdoor
Flowering Time
7-8 weeks
Thc Level
High : 15% +
Yield Notes
Indoor: 700-800 g/m2 / Outdoor: 900+ g/per plant
Flowering Outdoors
Mid/End of September
Cannabis Genetics
Select Critical Mass x Select Critical + ​

When it's time to go big or go home, pick up a full pack of Monster Mass Cannabis Seeds! These fabulous genetics are not only high yielding and extremely fast, they're seriously potent with a THC level that can go all the way to 20%. But watch out for the effects - these near-narcotic weed seeds have a strong sedating stone that could lock you to the couch for 3 hours or more. Try Monster Mass at your own risk!

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  • 100% Feminized Seeds
  • Astronomical Yields
  • Kick-Ass Power
  • Finishes in 45 to 50 Days!

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Before the Critical Mass Collective was even a gleam in Critical Lee's eye, this highly respected breeder fell in love with the legendary Critical Mass strain. Of course, he couldn't pass on the chance to improve on perfection, so he soon tweaked CM until he came up with Monster Mass, a new hybrid with even more yield & more power than it's infamous mom. Today, you can take advantage of all that hard work and pick up your own Critical Mass Collective feminized and AutoFem seeds. You'd be crazy not to!