Critical Mass Autoflower Seeds

Critical Mass Autoflower Seeds

  • checkmarkFeminized seeds for guaranteed results
  • checkmark80% indica 20% sativa
  • checkmarkHigh CBD and high THC levels
  • checkmarkEasy to grow
  • checkmarkEases your mind and psychical aches
More product info
From $99
Pack Quantity
5 $99
10 $129
20 $199 Best buy

Your seeds usually arrive within two weekdays but they can take up to a week to arrive. We guarantee safe delivery of your order. Contact us if you have shipping issues.


We handpick premium quality seeds, but they're still a natural product. Follow our germination instructions and your seeds will sprout in no time. Contact us to replace any rogue duds.


We offer free shipping to all US states and never reference marijuana on the packaging or receipts.

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Shipping Info

We ship to all USA states for FREE. Usually seeds arrive within a week.

Trouble with the mail? We will happily replace your seeds. See FAQ

Shop With Confidence

Robert Bergman and the ILGM team gladly share 25 years of experience!

Choosing Seeds

Feminized seeds flower and grow weed when they receive less than 12 hours of light per day. Harvest outdoors in fall, or indoors after 15-20 weeks. Professional growers use these.

Autoflower seeds grow small, easy-growing plants that you can harvest in 10-14 weeks. Great for new growers, small spaces, and multiple harvests per season!

How To Germinate

Germination is guaranteed when you soak the seeds in water up to 72 hours in darkness. When it shows a tail, put it in loose soil with fertilizer. Keep it light and damp and a seedling will appear!

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The Best Deals

Mix Packs are seed variety packs that come with discounts up to 50%. Every strain we offer is also available in a Mix Pack! See All Mix Packs

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Critical Mass Autoflower Seeds

  • Feminized seeds for guaranteed results
  • 80% indica 20% sativa
  • High CBD and high THC levels
  • Easy to grow
  • Eases your mind and psychical aches

Critical Mass auto-flower seeds produce a robust indica hybrid with potent buds. indica is the predominant strain (80%), but it also contains significant sativa percentages (20%). This marijuana strain is an excellent option for finishing your evenings relaxed, especially after a long work week. This marijuana strain fills the air with aromas of musky citrus goodness that users simply can't resist.

Plant type 80% indica 20% sativa
THC 18% to 22%
CBD 5%
Difficulty Easy
Climate Indoors | Mediterranean
Plant size Average
Vegetative stage 3 to 4 weeks
Flowering time 7 to 10 weeks
Yields 5 to 15 oz per plant
Taste and Smell Earthy | Pungent | Sweet
Effects Happy | Relaxed
Terpenes Humulene | L-Limonene | Myrcene | Caryophyllene | Ocimene

Critical Mass Cannabis seeds are easy to grow. These feminized autoflowering seeds produce an automatically -flowering Cannabis hybrid and are the result of a combination of Critical Mass with a hearty ruderalis cultivar. Auto Critical Mass has moderate CBD content and high THC content that can exceed 20%. Large buds and a fast harvest make this a favorite for many growers.

Critical Mass Autoflower Origins

Auto Critical Mass is a second-generation auto-flowering strain that combines popular indica varieties. The regular version is a fast-flower blend of Afghani and Skunk #1 strains. Afghani strain belongs to the indica family, and Skunk #1 is particularly known for its potency and strength.

Critical Mass plants tend to grow lots of resinous buds, depending on how long it remains in a vegetative state. However, because it is auto flowering, Critical Mass veg time is not a variable. It will automatically flower after a set amount of time.

What Is Critical Mass Autoflower?

In the 80s, weed breeders discovered Cannabis ruderalis, a variety of Cannabis closely related to Cannabis indica and Cannabis sativa. ruderalis stands out for its speed of growth, as it can flower in weeks and be harvested multiple times in a season. This reliable grow time prompted cultivators to start mixing ruderalis genes with sativa and indica strains, creating a new type of autoflowering strain.

Autoflowering Critical Mass is a balanced hybrid regarding its effects and taste. Autoflowering hybrids like Critical Mass auto grow rapidly. They also can be harvested much quicker than non-autoflowering options. Since they are smaller than conventional marijuana plants, they are ideal for both indoor and outdoor growers. New growers appreciate these feminized seeds because they are guaranteed to flower and they always know when to harvest Critical Mass, even if they haven't practiced growing marijuana.

Growing Critical Mass Autoflower Seeds

In general, these marijuana plants are easy to grow (especially when grown from feminized seeds) and produce a high-quality, high THC buds regardless of how they are cared for. The popular automatic version stays small, with most plants staying under 3 feet (80-90cm) when mature. As it grows, it develops a long central bud covered with orange hairs. During the flowering stage, this Cannabis plant produces sticky resin-coated buds within 10 - 14 weeks from germination when grown indoors.

Critical Mass tends to be a high-yielding strain with big resin-filled and snowy-white buds that give a strong aroma. In its growing phase, this plant reaches a 'critical mass', which sometimes causing its branches to break away from its thick bud. However, most Critical Mass auto grow journal entries reveal that the autoflowering version is a lot easier to maintain.

The best way to grow Critical Mass Auto Cannabis seeds indoors is with the SoG (sea of green) method. This growing technique helps improve airflow, which is important because its compact nature can lead to bud rot. For the strongest effects and highest yield, outdoor growers can cultivate it outside from May to August. For better root and overall plant growth, consider improving the soil aeration by adding 30% coco.

We also recommend reading our germination instructions for guaranteed results.

Preferred Climate

While indica dominant hybrids flourish in dry regions, sativa dominant hybrids thrive in warm subtropical climates. This indica-dominant hybrid prefers temperatures between 68 to 80 degrees Fahrenheit to thrive. When grown outdoors, this plant produces a lesser yield, so growers will need to plant across multiple growing seasons to achieve a large Critical Mass harvest.

Feeding Critical Mass Autoflower Plants

Visit our nutrient section to get the right plant food for every growth stage.

We recommend giving your plants:

Flowering and Yield

Critical Mass Autoflowers are auto-flowering plants, meaning they require no advanced lighting techniques to move into a flowering stage. Harvesting Critical Mass Auto is relatively easy since the plant can be cultivated indoors or outdoors. Average yields are 5 to 15 oz per plant.

Critical Mass Auto pics reveal that this Cannabis plant has short internodal spacings with dense nugs at every internode. Some plants can finish flowering in 10 weeks, but they can take up to 14 weeks.

Experiencing the Critical Mass Strain

With Critical Mass, you experience a relaxing and long-lasting sensation that is more physical than cerebral. Although the effects of Critical Mass are mainly body-centered rather than brain-centered, you shouldn't be surprised if you feel happy and euphoric after a few puffs. This Cannabis strain is an excellent choice for chilling out in the evening without getting couch lock.

You will always feel a soothing overall body effect when you smoke Critical Mass, so you shouldn't plan any strenuous activities right afterward. You'll end up relaxed and happy, but you will probably start to feel sleepy if you smoke large amounts. The most common negative reaction is dry mouth and dry eyes; however, there are some uncommon effects such as dizziness and paranoia. Since this strain can cause you to feel dehydrated, stay hydrated by drinking a lot of fluids.

Critical Mass Smell and Taste

Critical Mass is known for its blend of skunky, citrus, and sweet fragrance. A Critical Mass Autoflower review may talk about its combination of refreshing and energizing blend of earthy aromas. It's a pleasant aroma that very few people claim to dislike.

There is even more sweetness in the taste of Critical Mass than the aroma. Smoking Critical Mass reminds you of all the sweetness you've ever smelled and tasted—be it honey, fruit, or cookies—rolled into one delicious flavor. When you take a hit, you'll notice citrus and skunky qualities accompanied by the sweet flavor. When you exhale, you will taste the unique sweetness mixed in with earthiness.

Uses for Critical Mass Autoflower

Critical Mass Auto is often used as a popular therapeutic strain for chronic stress, pain, or muscle tension. It's also an excellent strain for helping anyone fall asleep. THC content is high, causing many people to use this strain as a fast way to feel better. sativa genetics help with negative moods, making this strain great for ending the night in a much better state of mind. Moderate CBD levels may also help with inflammation.

Buy Critical Mass Autoflower Seeds

You can buy Critical Mass Autoflower seeds per separate pack of 5, 10, or 20 seeds.

ILGM Guarantees

When you buy Critical Mass Autoflower seeds we offer:

  • Discreet shipping and handling
  • Free shipping to all U.S. states
  • Guaranteed arrival of your order
  • Guaranteed germination of your seeds

Find more information in our support center

Happy growing!

Reviews For Critical Mass Autoflower Seeds

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