Strain Encyclopedia

G13

Indica — THC 24%
VS

Granddaddy Purple

Indica — THC 27%

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

Home/Strain Comparisons/G13 vs Granddaddy Purple

Quick Verdict

Who wins in each category?

Potency
Granddaddy Purple
🏥
Medical
Granddaddy Purple
🌱
Growing
Tie
🍋
Flavor
Tie

Strain Profile Comparison

Six-axis profile overlay — see where each strain excels

THCCBDEffectsFlavorsGrow EaseMedical
G13
Granddaddy Purple

Effect Matchup

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

G13
Effect
Granddaddy Purple
100%
Euphoric
68%
68%
Sleepy
100%
77%
Relaxing
88%
88%
Happy
60%
60%
Uplifting
Hungry
77%
4 shared effects highlighted
G13 — Potency
THC0%
CBD0%
Potency LevelStrong
Granddaddy Purple — Potency
THC0%
CBD0%
Potency LevelStrong
Afghani Indica SelectionG13
Indica 70%Sativa 30%
Purple Urkle x Big BudGranddaddy Purple
Indica 80%Sativa 20%

Side-by-Side Specs

Green highlight indicates the superior value

G13
Category
Granddaddy Purple
22–24%
🔥THC
Better20–27%
0–0%
💧CBD
Better1–1%
Indica (70/30)
🧬Type
Indica (80/20)
Strong
Potency
Strong
Evening
🕐Best Time
Evening
Medical Users, Nighttime Use
🎯Best For
Medical Users, Nighttime Use

Profile Comparison

Shared (4)
EuphoricHappyRelaxingSleepy
Only G13 (1)
Uplifting
Only Granddaddy Purple (1)
Hungry

Possible Side Effects

Only Granddaddy Purple
Dry mouthDry eyesDizzy

Growing Guide Comparison

G13
PhotoperiodPhotoperiod
Growing MethodIndoor, Outdoor
Granddaddy Purple
PhotoperiodPhotoperiod
Growing MethodIndoor, Outdoor

About These Strains

G13

Indica 70/30 — THC 2224%

G13, also known as “ G-13” or “Government Indica Strain 1,” is an indica dominant hybrid (70% indica/30% sativa) strain with unknown parentage. This bud is rumored to have been created by the US Government during the 60's and 70's when they were experimenting with growing native Afghani weed strains for “medical” purposes.

Despite its confusing origins, G13 is definitely one bud that you should try at least once in your life, especially given its powerful effects and insanely potent 24% average THC level.

Granddaddy Purple

Indica 80/20 — THC 2027% — 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?

G13 and Granddaddy Purple are both excellent strains with distinct characteristics. G13 is a Indica with 22–24% 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 G13

G13 is a solid indica with euphoric, happy, relaxing effects.

Choose Granddaddy Purple

Granddaddy Purple is a solid indica with sleepy, relaxing, hungry effects.

Frequently Asked Questions

Common questions about G13 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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