What is the main difference between G13 and Vietnamese Black?

G13 is a Indica strain (70% Indica / 30% Sativa) with THC levels of 22–24%, while Vietnamese Black is a Sativa strain (0% Indica / 100% Sativa) with THC levels of 24–25%.

Which strain has higher THC — G13 or Vietnamese Black?

Vietnamese Black has higher THC at 24–25%, compared to G13 at 22–24%.

What effects does G13 have compared to Vietnamese Black?

G13 produces euphoric, happy, relaxing, sleepy, uplifting effects, ideal for evening use. Vietnamese Black produces euphoric, focus, uplifting effects, best for morning use.

What terpenes are in G13 and Vietnamese Black?

G13 features , giving it pine, sweet, wood flavors. Vietnamese Black features , with citrus, herb, spicy flavors.

Which medical conditions can G13 and Vietnamese Black help with?

G13 may help with anxiety, arthritis, depression, glaucoma, headaches, insomnia, migraines, ptsd, stress. Vietnamese Black may help with arthritis, depression, fatigue, migraines, stress, pain. Consult a healthcare professional before using cannabis for medical purposes.

Strain Encyclopedia

G13

Indica — THC 24%

Vietnamese Black

Sativa — THC 25%

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

Home/Strain Comparisons/G13 vs Vietnamese Black

Quick Verdict

Who wins in each category?

⚡

Potency

Vietnamese Black

🏥

Medical

G13

🌱

Growing

Tie

🍋

Flavor

Vietnamese Black

Strain Profile Comparison

Six-axis profile overlay — see where each strain excels

G13

Vietnamese Black

Effect Matchup

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

G13

Effect

Vietnamese Black

100%

Euphoric

100%

60%

Uplifting

77%

88%

Happy

77%

Relaxing

68%

Sleepy

Focus

88%

2 shared effects highlighted

G13 — Potency

THC0%

CBD0%

Potency LevelStrong

Vietnamese Black — Potency

THC0%

CBD0%

Potency LevelStrong

Afghani Indica SelectionG13

Indica 70%Sativa 30%

Vietnamese LandraceVietnamese Black

Indica 0%Sativa 100%

Side-by-Side Specs

Green highlight indicates the superior value

G13

Profile Comparison

Shared (2)

EuphoricUplifting

Only G13 (3)

HappyRelaxingSleepy

Only Vietnamese Black (1)

Focus

Growing Guide Comparison

G13

PhotoperiodPhotoperiod

Growing MethodIndoor, Outdoor

Vietnamese Black

PhotoperiodPhotoperiod

Growing MethodIndoor, Outdoor

About These Strains

G13

Indica 70/30 — THC 22–24%

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.

Vietnamese Black

Sativa 0/100 — THC 24–25%

Vietnamese Black is a rare 100% pure sativa strain that is native to regions of Vietnam. If you’re looking for a classic sativa to help get you up and going for a busy day ahead without the paranoia or anxiety that can sometimes come with it, Vietnamese Black is it.

This bud has a deeply relaxing and lifted high that is perfect for a wake-and-bake when you need a little lift without all the drama.

Which One Is Right for You?

G13 and Vietnamese Black are both excellent strains with distinct characteristics. G13 is a Indica with 22–24% THC, while Vietnamese Black is a Sativa with 24–25% THC. Your choice depends on your preference for effects, growing difficulty, and intended use.

Choose G13

Choose G13 if you want deeper body relaxation, broader medical applications. G13, also known as “ G-13” or “Government Indica Strain 1,” is an indica dominant hybrid (70% indica/30% sativa) strain with unknown parentage.

Choose Vietnamese Black

Choose Vietnamese Black if you want more cerebral/uplifting effects. Vietnamese Black is a rare 100% pure sativa strain that is native to regions of Vietnam.

Frequently Asked Questions

Common questions about G13 vs Vietnamese Black

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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