Critical Kush

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Critical Kush Seeds – Strain ID:

Critical Kush Seeds Bud

Type: Indica
Cannabinoids: 16-22% THC
Terpenes: Myrcene, Caryophyllene, Limonene
Effects: Calming, Euphoria, Relaxing
Landrace Strain: Critical Mass x OG Kush

Grow Difficulty: Easy
Harvest: 8 Weeks / 9 Weeks
Yield: Up to 650g/㎡ / Up to 700g/plant
Height: Up to 3.5 feet/ >3.5 feet
(*Indoor / Outdoor)

Today, many cannabis strains are being bred for qualities like fruity aroma, juicy flavor, and bag appeal. While exciting and new, sometimes you might be wondering what happened to good old fashioned hard-hitting weed.

Thankfully, it hasn’t gone anywhere, with strains like Critical Kush bringing in hammer-fisted pure indica potency. The most refreshing aspect of Critical Kush is the way breeder Barney’s Farm combined old-school genetics with today’s best breeding techniques, resulting in what you might call a super strain.

Critical Kush’s high THC concentration sends you from the launchpad clear into orbit in less than three hits, no matter your tolerance level. Worry not, your flight will be pleasant as the strain serves up out of this world lemon pie flavors combined with rocket fuel aromatics.

So, get yourself strapped in while this Critical Kush strain review covers everything you need to know, including how to get the most out of growing Critical Kush seeds.

About Critical Kush Seeds


Critical Kush seems like a strain that’s been around forever, and in a way, it has. Descended from Critical Mass and OG Kush, Critical Kush contains landrace genetics from both Afghani and Hindu kushes deep within its lineage.

If you’re looking for a cheat sheet tip to understand cannabis history and strain types, remember this — anytime you see Afghani or Hindu anything, it’s going to be a deep indica. There are one or two exceptions to the rule, but this shortcut to understanding cannabis strain types is almost always guaranteed to work.

Now, who else but an intrepid Dutch stoner would have ventured into the Himalayas and back in the early 1980s just to discover cannabis seeds? None other than Derry of Barney’s Farm, a world-renowned seed bank at the marijuana cultivation forefront for nearly 30 years.

Barney’s Farm had already made tsunami-like waves upon release of Critical Mass, a balanced indica that won its fair share of cannabis cups throughout Europe. However, not content with resting on success, the breeders at Barney’s proved lightning does strike twice by pairing the blockbuster Critical Mass strain with an exceptional OG Kush phenotype.

The result is an indica that leans on your body with indica heft while endowing your mind with the uplifting euphoria OG Kush devotees know and love.

Some call Critical Kush buds the result of a match made in heaven, and few would disagree. However, indica-packed potency isn’t all that sets Critical Kush seeds apart. Just ask the judges who gave Critical Kush a medal at the recent Cannabis Cup in Michigan.

To discover why growers unanimously adore this strain (along with its monstrous yields), keep reading along for insider tips on growing Critical Kush seeds.

Growing Critical Kush Seeds

Critical Kush seeds were bred with a simple design goal in mind — maximize yield efficiency with the most compact and hardy plants possible.

To that end, Critical Kush is a resounding success. As a grower, strains like Critical Kush reinvigorate your love of marijuana cultivation, taking your appreciation to higher heights.

Today, there are two varieties of Critical Kush seeds available from Barney’s Farm. Which should you choose? Here are a few considerations to help you decide.

  • Regular Critical Kush seeds — Marijuana cultivation is a fine art that requires time, patience, and care. Regular seeds are natural, unmodified marijuana seeds that contain both male and female genetics. This means you’ll have to identify and remove male plants quickly when the flowering phase begins since they don’t produce flowers. However, if you plan to create your own hybrids, you need males to fertilize your female plants.
  • Feminized Critical Kush seeds — Not everyone is searching for the perfect phenotype or looking to create a cannabis cup winning hybrid. Maybe all you want is a yield of perfectly formed buds with the least amount of hassle. In that case, feminized Critical Kush seeds fit the bill. There’s no need to sex these seeds during flowering since plants are guaranteed to be 100% female.

Grow Difficulty:

Critical Kush plants are remarkably beginner-friendly, making these seeds an excellent choice for novice growers.

Optimal Growing Conditions and Climate:

Critical Kush seeds are top performers both indoors and outdoors. They like organic soil mediums best but are also known to deliver outrageous yields when grown hydroponically.

If you go the hydro route, the key is delivering heavy nutrient feedings during the entire flowering period. Doing so encourages buds to pack on as much weight as possible, basically helping you to double down on an already stacked yield.

Speaking of stacked yields, Critical Kush plants have an industry-wide reputation for being beasts in the greenhouse. As long as your greenhouse is adequately ventilated and maintains reasonably low humidity levels, your Critical Kush plants will thrive like no other.

Ultimately, your grow’s success will come down to your ability to either control your indoor environment temperature and humidity levels or select an outdoor site that is suitable for Critical Kush’s preferences.

Maintain warm temperatures between 68°F and 85°, and don’t let relative humidity climb above 65%. Keeping humidity in check is crucial for Critical Kush — buds get so overgrown that, if allowed to retain excess moisture, bud rot is not a matter of if, but when.

Flowering Time:

Expect a short flowering time of 8-weeks when grown indoors. Outdoor growers can begin harvesting at the end of September or early October, depending on climate.


Critical Kush plants deliver truly legendary yields that will have you laughing all the way to the scale.

Indoors, expect up to 650 grams per square meter. Outdoors, each plant is capable of yielding between 650-700 grams per plant.


Owing to pure indica genetics, Critical Kush seeds grow into compact plants of low to medium height. Expect them to reach between 100-110cm, although a few phenotypes are known to give additional stretch.

Because of their relatively small stature, you can effectively bunch Critical Kush plants together as long as you maintain the canopy using SOG or SCROG techniques.

Resistance to Pests and Mold:

Critical Kush seeds are highly resistant to pests. However, bud mold is an issue when ventilation is not adequate, or when relative humidity levels are excessive.

Strain Description and Properties

The Appearance of Critical Kush Weed:

Critical Kush is one of the most beautiful strains on Earth, full stop. Everything you could ask for in a nug — density, weight, squish, frost — is all there in absurd quantities.

Bud shapes range from round to classic OG blunted spears covered in blizzard-levels of frost. Setting your grinder to work on a gram of perfectly cured Critical Kush reveals a texture that just begs to be rolled up.

If you feel guilty tearing apart a pristine Critical Kush nug — don’t worry, you’re not alone.

Dominant Cannabinoids Found in Critical Kush Seeds:

Critical Kush seeds are 100% indica and THC dominant. During lab tests, THC levels average between 16-22%.

Dominant Terpenes Found in Critical Kush Seeds:

You’ll find the famous tangy jet fuel scent made famous by OG Kush along with a more subtle earthen spice on the nose. Flavor-wise, expect lemon-pine-hash that’s so thick you can chew it before exhaling.

The intermingling of three primary terpenes in Critical Kush seeds is responsible for its spectacular aroma and flavor profiles.

  • Myrcene — Highly regarded for its sedative properties, myrcene is a uniquely calming terpene that is often found in relaxing plants, such as lavender.
  • Caryophyllene — Indica plants tend to be high in caryophyllene, a pain-mitigating terpene. Critical Kush seeds contain high concentrations of caryophyllene, making it a useful medical strain.
  • Limonene — The juicy-tart-sweetness you taste in a bowl of Critical Kush stems from limonene, a citrus terpene that waves away stress like an invisible magician.

Effects of Critical Kush Weed:

Worries, stress, and unconstructive thoughts simply fade away after the onset of Critical Kush’s extremely relaxing effects. As the static level drops, your calm mind and body’s positive signal rises, endowing you with a deep sense of goodness.

Physically, a Critical Kush high makes you feel a bit like an untethered astronaut floating in unexplored galactic space. The sedative effects come on heavy, adding weight to your spacesuit as you orbit the couch.

Whether you’re alone or in good company, a calm state of mind accompanies the body high, giving the object of your focus a spotlight effect that encourages mindfulness.

Medical Properties of Critical Kush Seeds:

Growing Critical Kush seeds is an effective way to produce a replenishing medicine source that counters the effects of pain and stress. Use Critical Kush for:

  • Pain
  • Headaches
  • Arthritis
  • Stress
  • Depression
  • PTSD
  • Insomnia
  • Lack of appetite

Negative Effects of Critical Kush Weed:

Critical Kush is a very potent indica high. For this reason alone, start your session with one or two hits before progressing. Otherwise, you may feel dizzy and disoriented as the strain’s effects become too intense.

Pros/Cons of Growing Critical Kush Seeds


  • Very beginner-friendly to grow
  • Insanely high yields
  • Picture-perfect indica nugs
  • Compact plant size


  • Autoflowering Critical Kush seeds are rare
  • Effects are strong for novices
  • Bud rot can be an issue
Watch: Critical Kush Strain Grow Day 65

Buy Critical Kush Seeds:

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Crop King Seeds Critical Kush Seeds

Shipping worldwide

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Cannabis Strain Index – A curated index of the world’s best cannabis seed strains. Each review contains vital information, such as cultivation tips, strain profiles, and where to buy the best cannabis seeds.

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