What is the main difference between Critical Mass and Granddaddy Purple?

Critical Mass is a Indica strain (80% Indica / 20% Sativa) with THC levels of 19–22%, while Granddaddy Purple is a Indica strain (80% Indica / 20% Sativa) with THC levels of 20–27%.

Which strain has higher THC — Critical Mass or Granddaddy Purple?

Granddaddy Purple has higher THC at 20–27%, compared to Critical Mass at 19–22%.

What effects does Critical Mass have compared to Granddaddy Purple?

Critical Mass produces relaxing, sleepy, tingling, euphoric, happy effects, ideal for evening use. Granddaddy Purple produces sleepy, relaxing, hungry, euphoric, happy effects, best for evening use.

What terpenes are in Critical Mass and Granddaddy Purple?

Critical Mass features Myrcene, giving it citrus, honey, skunk flavors. Granddaddy Purple features Myrcene, with berry, fruity, grape flavors.

Which medical conditions can Critical Mass and Granddaddy Purple help with?

Critical Mass may help with add/adhd, arthritis, chronic pain, depression, fatigue, fibromyalgia, inflammation, insomnia, nausea, stress, pain, anxiety. Granddaddy Purple may help with arthritis, chronic pain, depression, insomnia, loss of appetite, migraines, muscle spasms, ptsd, stress, anxiety, pain. Consult a healthcare professional before using cannabis for medical purposes.

Strain Encyclopedia

Critical Mass

Indica — THC 22%

Granddaddy Purple

Indica — THC 27%

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

Home/Strain Comparisons/Critical Mass vs Granddaddy Purple

Quick Verdict

Who wins in each category?

⚡

Potency

Granddaddy Purple

🏥

Medical

Critical Mass

🌱

Growing

Critical Mass

🍋

Flavor

Critical Mass

Strain Profile Comparison

Six-axis profile overlay — see where each strain excels

Critical Mass

Granddaddy Purple

Effect Matchup

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

Critical Mass

Effect

Granddaddy Purple

100%

Relaxing

88%

Sleepy

100%

68%

Euphoric

68%

60%

Happy

60%

77%

Tingling

53%

Uplifting

46%

Body-buzz

Hungry

77%

4 shared effects highlighted

Critical Mass — Potency

THC0%

CBD0%

Potency LevelStrong

Granddaddy Purple — Potency

THC0%

CBD0%

Potency LevelStrong

Afghani x Skunk #1Critical Mass

Indica 80%Sativa 20%

Purple Urkle x Big BudGranddaddy Purple

Indica 80%Sativa 20%

Side-by-Side Specs

Green highlight indicates the superior value

Critical Mass

Profile Comparison

Shared (4)

RelaxingSleepyEuphoricHappy

Only Critical Mass (3)

TinglingUpliftingBody-buzz

Only Granddaddy Purple (1)

Hungry

Possible Side Effects

Shared

Dry mouthDry eyes

Only Critical Mass

Anxious

Only Granddaddy Purple

Dizzy

Growing Guide Comparison

Critical Mass

Flowering6-8 weeks

PhotoperiodPhotoperiod

Growing MethodIndoor, Outdoor

Granddaddy Purple

Flowering7-9 weeks

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.

Granddaddy Purple

Indica 80/20 — THC 20–27% — CBD 1–1%

Granddaddy Purple, also known as “ Grand Daddy Purple” or “GDP” or “Grand Daddy Purps,” is a heavy indica dominant strain created through crossing the classic Big Bud X Purple Urkle strains. This flavorful bud is said to be the grandfather of all weed strains, packing timeless full-bodied effects and an infamous flavor that will leave you begging for more.

The Granddaddy Purple high hits you first with a cerebral rush that leaves you feeling completely euphoric although with a slight numbing effect.

Which One Is Right for You?

Critical Mass and Granddaddy Purple are both excellent strains with distinct characteristics. Critical Mass is a Indica with 19–22% THC, while Granddaddy Purple is a Indica with 20–27% 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, higher CBD for medical use. 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 Granddaddy Purple

Choose Granddaddy Purple if you want higher THC potency. Granddaddy Purple, also known as “ Grand Daddy Purple” or “GDP” or “Grand Daddy Purps,” is a heavy indica dominant strain created through crossing the classic Big Bud X Purple Urkle strains.

Frequently Asked Questions

Common questions about Critical Mass vs Granddaddy Purple

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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