What is the main difference between Jack Herer and Vietnamese Black?

Jack Herer is a Sativa strain (20% Indica / 80% Sativa) with THC levels of 15–24%, while Vietnamese Black is a Sativa strain (0% Indica / 100% Sativa) with THC levels of 24–25%.

Which strain has higher THC — Jack Herer or Vietnamese Black?

Vietnamese Black has higher THC at 24–25%, compared to Jack Herer at 15–24%.

Is Jack Herer or Vietnamese Black easier to grow?

Jack Herer has moderate growing difficulty with a 8-10-week flowering period, while Vietnamese Black has moderate difficulty with a 10-12-week flowering period.

What effects does Jack Herer have compared to Vietnamese Black?

Jack Herer produces focused, energetic, creative, euphoric, focus effects, ideal for morning use. Vietnamese Black produces euphoric, focus, uplifting effects, best for morning use.

What terpenes are in Jack Herer and Vietnamese Black?

Jack Herer features Terpinolene, giving it citrus, lemon, orange flavors. Vietnamese Black features Terpinolene, Pinene, Limonene, with citrus, herb, spicy flavors.

Which medical conditions can Jack Herer and Vietnamese Black help with?

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

Strain Encyclopedia

Jack Herer

Sativa — THC 24%

Vietnamese Black

Sativa — THC 25%

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

Home/Strain Comparisons/Jack Herer vs Vietnamese Black

Quick Verdict

Who wins in each category?

⚡

Potency

Vietnamese Black

🏥

Medical

Tie

🌱

Growing

Tie

🍋

Flavor

Jack Herer

Strain Profile Comparison

Six-axis profile overlay — see where each strain excels

Jack Herer

Vietnamese Black

Effect Matchup

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

Jack Herer

Effect

Vietnamese Black

68%

Euphoric

100%

60%

Focus

88%

46%

Uplifting

77%

100%

Focused

88%

Energetic

77%

Creative

53%

Social

3 shared effects highlighted

Jack Herer — Potency

THC0%

CBD0%

Potency LevelModerate

Vietnamese Black — Potency

THC0%

CBD0%

Potency LevelStrong

Haze x Northern Lights #5 x Shiva SkunkJack Herer

Indica 20%Sativa 80%

Vietnamese LandraceVietnamese Black

Indica 0%Sativa 100%

Side-by-Side Specs

Green highlight indicates the superior value

Jack Herer

Profile Comparison

Shared (3)

EuphoricFocusUplifting

Only Jack Herer (4)

FocusedEnergeticCreativeSocial

Possible Side Effects

Shared

Dry mouthDry eyes

Only Jack Herer

Anxious

Only Vietnamese Black

Dizzy

Growing Guide Comparison

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

ClimateMediterranean, Dry

Vietnamese Black

DifficultyModerate

Flowering10-12 weeks

HarvestLate October

Indoor YieldMedium

Outdoor YieldMedium to High

Indoor HeightTall

Outdoor HeightTall

Plant StructureTall and Stretchy

PhotoperiodPhotoperiod

Growing MethodIndoor, Outdoor

ClimateWarm, Mediterranean

About These Strains

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.

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?

Jack Herer and Vietnamese Black are both excellent strains with distinct characteristics. Jack Herer is a Sativa with 15–24% 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 Jack Herer

Jack Herer is a solid sativa with focused, energetic, creative effects.

Choose Vietnamese Black

Choose Vietnamese Black if you want higher THC potency. Vietnamese Black is a rare 100% pure sativa strain that is native to regions of Vietnam.

Frequently Asked Questions

Common questions about Jack Herer 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.

More Strain Comparisons

View All Comparisons