What is the main difference between Critical Mass and Jack Herer?

Critical Mass is a Indica strain (80% Indica / 20% Sativa) with THC levels of 19–22%, while Jack Herer is a Sativa strain (20% Indica / 80% Sativa) with THC levels of 15–24%.

Which strain has higher THC — Critical Mass or Jack Herer?

Jack Herer has higher THC at 15–24%, compared to Critical Mass at 19–22%.

Is Critical Mass or Jack Herer easier to grow?

Critical Mass has easy growing difficulty with a 6-8-week flowering period, while Jack Herer has moderate difficulty with a 8-10-week flowering period. Critical Mass is a great choice for beginners.

What effects does Critical Mass have compared to Jack Herer?

Critical Mass produces relaxing, sleepy, tingling, euphoric, happy effects, ideal for evening use. Jack Herer produces focused, energetic, creative, euphoric, focus effects, best for morning use.

What terpenes are in Critical Mass and Jack Herer?

Critical Mass features Myrcene, giving it citrus, honey, skunk flavors. Jack Herer features Terpinolene, with citrus, lemon, orange flavors.

Which medical conditions can Critical Mass and Jack Herer help with?

Critical Mass may help with add/adhd, arthritis, chronic pain, depression, fatigue, fibromyalgia, inflammation, insomnia, nausea, stress, pain, anxiety. Jack Herer may help with anxiety, depression, fatigue, headaches, migraines, stress. Consult a healthcare professional before using cannabis for medical purposes.

Strain Encyclopedia

Critical Mass

Indica — THC 22%

Jack Herer

Sativa — THC 24%

Potency, effects, terpenes, flavors, growing difficulty, and medical uses — compared side by side.

Home/Strain Comparisons/Critical Mass vs Jack Herer

Quick Verdict

Who wins in each category?

⚡

Potency

Critical Mass

🏥

Medical

Critical Mass

🌱

Growing

Critical Mass

🍋

Flavor

Jack Herer

Strain Profile Comparison

Six-axis profile overlay — see where each strain excels

Critical Mass

Jack Herer

Effect Matchup

Side-by-side effect intensity — bars show relative prominence

Critical Mass

Effect

Jack Herer

68%

Euphoric

68%

53%

Uplifting

46%

100%

Relaxing

88%

Sleepy

77%

Tingling

60%

Happy

46%

Body-buzz

Focused

100%

Energetic

88%

Creative

77%

Focus

60%

Social

53%

Cerebral

41%

2 shared effects highlighted

Critical Mass — Potency

THC0%

CBD0%

Potency LevelStrong

Jack Herer — Potency

THC0%

CBD0%

Potency LevelModerate

Afghani x Skunk #1Critical Mass

Indica 80%Sativa 20%

Haze x Northern Lights #5 x Shiva SkunkJack Herer

Indica 20%Sativa 80%

Side-by-Side Specs

Green highlight indicates the superior value

Critical Mass

Profile Comparison

Shared (2)

EuphoricUplifting

Only Critical Mass (5)

RelaxingSleepyTinglingHappyBody-buzz

Only Jack Herer (6)

FocusedEnergeticCreativeFocusSocialCerebral

Possible Side Effects

Shared

Dry mouthDry eyesAnxious

Growing Guide Comparison

Critical Mass

DifficultyEasy

Flowering6-8 weeks

HarvestSeptember Yield

Indoor Yield750g/m² (2.5oz/ft²)

Outdoor Yield600g/plant (21.2oz/plant)

Indoor HeightMedium

Outdoor HeightMedium

Plant StructureBushy

PhotoperiodPhotoperiod

Growing MethodIndoor, Outdoor

Jack Herer

DifficultyModerate

Flowering8-10 weeks

HarvestOctober Yield

Indoor Yield600g/m² (2.0oz/ft²)

Outdoor YieldLarge

Indoor HeightMedium

Outdoor HeightMedium

Plant StructureBushy

PhotoperiodPhotoperiod

Growing MethodIndoor, Outdoor

About These Strains

Critical Mass

Indica 80/20 — THC 19–22% — CBD 5–5%

Critical Mass is an indica dominant hybrid (80% indica/20% sativa) strain that's a cross between the iconic Afghani X Skunk #1 strains. This bud gets its name from the tendency of branches to break under the weight of the insanely dense buds.

It's not uncommon for growers to find branches of their Critical Mass plants littering the floors of their greenhouses.

Jack Herer

Sativa 20/80 — THC 15–24%

Jack Herer, also known as “The Jack,” “JH,” “Premium Jack” or “ Platinum Jack” is a sativa dominant hybrid strain (80% sativa/20% indica) created through crossing the classic Haze X ( Northern Lights #5 X Shiva Skunk) strains. One of the most famous buds on the planet, Jack Herer packs a lifted and energizing high that's perfect for a day when you need a little extra oomph to get up and moving.

You'll feel the effects hit you almost as soon as you exhale, filling your brain with a lifted sense of clear-headed euphoria and motivation that's accented by a boost in creativity and focus.

Which One Is Right for You?

Critical Mass and Jack Herer are both excellent strains with distinct characteristics. Critical Mass is a Indica with 19–22% THC, while Jack Herer is a Sativa with 15–24% THC. Your choice depends on your preference for effects, growing difficulty, and intended use.

Choose Critical Mass

Choose Critical Mass if you want easier growing, deeper body relaxation, higher CBD for medical use, broader medical applications. Critical Mass is an indica dominant hybrid (80% indica/20% sativa) strain that's a cross between the iconic Afghani X Skunk #1 strains.

Choose Jack Herer

Choose Jack Herer if you want more cerebral/uplifting effects. Jack Herer, also known as “The Jack,” “JH,” “Premium Jack” or “ Platinum Jack” is a sativa dominant hybrid strain (80% sativa/20% indica) created through crossing the classic Haze X ( Northern Lights #5 X Shiva Skunk) strains.

Frequently Asked Questions

Common questions about Critical Mass vs Jack Herer

Medical Disclaimer

The information on this page is for educational purposes only and is not intended as medical advice. Cannabis affects everyone differently. Consult a qualified healthcare professional before using cannabis for any medical condition. Effects, potency, and medical benefits may vary. Do not use cannabis if pregnant, nursing, or under the legal age in your jurisdiction.

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