Critical Mass feminized seeds


Critical Mass: A Mass of Resinous Buds for All Climates

Critical Mass is a feminized, Indica-dominant cannabis strain developed by Advanced Seeds as a cross between an Afghani breed and Skunk 1 to yield a hybrid with big, densely packed buds and equally impressive sweet but earthy and woody flavors. Reaching yields as high as 550 – 650 g/m2 with the right cultivation, Critical Mass is a dream for any grower.


With a standard flowering time of 9 – 10 weeks, she isn’t the fastest of growers however, she is worth the wait as the end of flower sees her bearing rock-hard buds packed with resin. Reaching heights of only 100 cm indoors, she’s terrific for growers with limited space and her natural adversity to more challenging climates means she can be grown with heavy yields even in colder regions. In the earlier stages of the grow, a little training goes a long way – techniques such as supercropping can be used in tandem to deliver up to 650 g/m2 of dense, sticky cannabis. Here is some further information to help you grow this strain:

  • Medium height – 90 – 100 cm
  • Max EC of water – 1.4 in veg, up to 1.8 in flower
  • Recommended grow medium: Aeroponics – excellent yields from Critical Mass when grown hydroponically.
  • Recommended nutrients: Nectar for The Gods range

Sweet Yet Woody Flavors

Known for her earthen, woody flavors, Critical manages to combine this with a surprising sweetness. The combination of these flavors along with the balance of mind and body effects, she will leave you with a memorable experience that you will thank your stars for the stupendous yields.



  • Brand

    AKA seed bank. They create and preserve cannabis genetics, then we get them to you.

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    Advanced Seeds
  • Type of seeds

    Regular or feminized. Pick feminized if you want female plants only.

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  • Type of seeds

    Either autoflowering or photoperiod. Both have their pros and cons, but growing autos is easier.

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  • Suitable for growing

    This strain is perfect for growing both indoors and outdoors.

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    Indoor, Outdoor
  • Effect *

    Each strain produces a certain effect on your body. This is what you can expect from this variety.

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    Critical relaxation
  • Genetics

    Genetic composition of the strain. Shows parent strains that were used to create this particular variety.

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    Afghanistan x Skunk #1
  • Height

    This is how tall the plant can become. Use this info when planning your grow space.

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    90 - 100 cm indoors
    120 - 140 cm outdoors
  • Harvest

    This is how much bud you can get from this variety come harvest time.

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    550 - 650 g/m² indoors
  • Indoor flowering time

    The length of the flowering stage for photoperiod strains, or seed-to-harvest time for autoflowers.

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    65 - 70 days
  • Outdoor finish

    This is when your plant will be ready for harvest when grown outdoors. Make sure it's still warm enough by then!

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  • % Sativa/ Indica/ Ruderalis

    The ratio of Sativa/Indica/Ruderalis in this particular variety.

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    Indica dominant
  • THC

    The main psychoactive compound in cannabis. The higher THC level, the more potent the strain.

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    22 %

*Herbies sells cannabis seeds exclusively as souvenirs that aren’t meant for cultivation or germination. Customers should be aware that the germination of cannabis seeds is illegal in most countries. Herbies sells cannabis seeds exclusively for collecting and preservation for future generations. We advise customers to check with their local laws before germination, as Herbies does not accept responsibility for the illegal use of our products.

  • ghost
    10 April 2022
    10 April 2022
    • Advantages
      Easy to grow and massive yields 
    • Disadvantages
    • General impressions

      I love it :)