Top CBG Strains for Growers: A Seed Comparison Guide

CBG strains are one of the most interesting corners of modern cannabis breeding. Instead of chasing THC, breeders select lines where cannabigerol (CBG) stays the dominant cannabinoid.

I’m James Bean, founder of Seeds Here Now since 2010. This guide explains what makes CBG strains different, compares the best-known CBG lines, and lists the CBG seeds we carry. We describe chemistry and lineage only and make no health claims.

Seeds Here Now sells authentic breeder packs to adults 21+. We do not provide growing instructions, and nothing here is a medical claim.

Table of Contents

What Makes CBG Strains Different

In most cannabis, CBGA is an early building block that the plant converts into THCA or CBDA. CBG strains carry genetics that limit that conversion, so CBG remains the main cannabinoid. Our CBG seeds page covers the basics.

That is why CBG strains typically report very low THC. Breeders achieved it through careful selection over many generations, much like the work behind CBD-rich strains.

Chemotype	Dominant cannabinoid	Example
THC-dominant	THC	Most dessert and gas lines
CBD-dominant	CBD	CBD-rich lines
CBG-dominant	CBG	White CBG, Jack Frost CBG

How Buyers Compare CBG Strains

Reported CBG level: lab figures vary by sample, so treat percentages as ranges.
Reported THC level: CBG lines are bred for very low THC; check the breeder’s figures.
Aroma: terpenes still matter. Read what terpenes are.
Breeder and stability: named breeders and stable lines are worth more to a collection.
Local law: rules for low-THC and CBG genetics differ by state; check before you buy.

CBG cannabis strains compared

Top CBG Strains Compared

Strain	Reported CBG	Notes
White CBG	About 15% to 20%	Frosty, one of the best-known CBG lines
Stem Cell CBG	About 15% to 18%	Known for consistency
Jack Frost CBG	Up to about 20%	Widely used CBG line
Sour G CBG	About 15% to 18%	Sour, citrus aroma

1. White CBG

White CBG is one of the most popular lines, known for frost-covered buds and a reported CBG content of about 15% to 20% with minimal THC.

2. Stem Cell CBG

Stem Cell CBG is valued for consistent cannabinoid output, with reported CBG around 15% to 18%.

3. Jack Frost CBG

Jack Frost CBG is a staple of the category, with reported CBG levels reaching about 20%.

4. Sour G CBG

Sour G CBG stands out for aroma, with a pleasantly sour, citrusy terpene profile and reported CBG of about 15% to 18%.

CBG Seeds We Carry

Availability changes, but these CBG seeds are in our catalog now:

5. Seedsman CBG #1 (Feminized)

Seedsman CBG #1 is a feminized CBG line from one of Europe’s longest-running seed companies.

6. CBG-Force (Feminized) by Dutch Passion

CBG-Force by Dutch Passion comes from a breeder with decades of work on specialty chemotypes.

7. CBG Citrus Ginger Auto by Automatically Delicious

CBG Citrus Ginger Auto puts CBG genetics into an autoflower line with a citrus and ginger aroma.

CBGA: The Starting Point for Other Cannabinoids

To understand CBG strains, it helps to know where cannabinoids come from. In the cannabis plant, cannabigerolic acid (CBGA) is made first. Enzymes in the plant then convert CBGA into other acid-form cannabinoids: THCA synthase makes THCA, CBDA synthase makes CBDA, and CBCA synthase makes CBCA.

That is why CBGA is often called the mother cannabinoid. In a typical THC-dominant plant, most of the CBGA is converted, so only small amounts remain. CBG itself is the neutral form of CBGA, produced mainly when the plant material is heated or aged.

We describe this chemistry for buyers who want to understand how CBG strains differ. It is not a health claim, and we make none.

CBG strains illustration

How Breeders Made CBG-Dominant Lines

CBG strains exist because some plants carry versions of the converting enzymes that do not work, or work very little. When a plant cannot convert much of its CBGA, CBGA builds up and becomes the main cannabinoid.

Breeders found plants with that trait and selected for it over many generations, combining it with better structure, frost and aroma. The result is the modern CBG category: lines like White CBG, Jack Frost CBG and Stem Cell CBG, where CBG is dominant and THC is very low.

It is similar in spirit to the work behind CBD-dominant lines, which our guide to CBD-rich cannabis strains covers.

This kind of selection takes patience. A breeder has to test plants, keep the ones with the right chemistry and still pay attention to frost, aroma and overall quality, often across several generations before a line is ready for release.

The Five Cannabis Chemotypes

Researchers often group cannabis into chemotypes based on which cannabinoid dominates. CBG strains belong to a category of their own:

Chemotype	Dominant cannabinoid profile	Where CBG strains fit
Type I	THC-dominant	Most dessert, gas and candy lines
Type II	Mixed THC and CBD	Balanced lines
Type III	CBD-dominant	CBD-rich lines
Type IV	CBG-dominant	CBG strains such as White CBG
Type V	Very low cannabinoids overall	Mostly fiber and research lines

This framework helps explain why CBG strains are a separate category rather than just low-THC versions of ordinary cannabis.

CBG Lines Compared With CBD Lines

The two specialty categories are often confused, but they are different. In CBD-dominant plants, the enzyme that makes CBDA is active, so most of the starting CBGA becomes CBDA. In CBG-dominant plants, the converting enzymes are largely inactive, so the CBGA stays as it is.

Feature	CBD-dominant lines	CBG-dominant lines
Main cannabinoid	CBD (from CBDA)	CBG (from CBGA)
What happens to CBGA	Mostly converted to CBDA	Mostly left unconverted
Reported THC	Low	Very low

For buyers, both categories show how breeders can steer the plant’s chemistry by selection alone.

CBG strains: CBG seeds collection

Aroma in CBG Strains

A common assumption is that CBG strains have little aroma. In practice, terpenes are made separately from cannabinoids, so a CBG line can smell just as interesting as a THC-dominant one. Sour G CBG is known for a sour, citrus profile, and CBG Citrus Ginger Auto is named for its citrus and ginger notes.

For buyers, that means aroma is still a good way to compare CBG seeds. See our guide on what terpenes are for the basics.

The Breeders Behind the CBG Seeds We Carry

Seedsman is one of Europe’s longest-running seed companies, and its CBG #1 is a feminized entry into the category. Dutch Passion, a Dutch breeder with decades of work on specialty chemotypes, makes CBG-Force. Automatically Delicious brings CBG genetics into autoflower form with CBG Citrus Ginger Auto.

Having CBG seeds from three different breeders lets buyers compare how each approached the same goal. Our CBG seeds page lists what is in the catalog.

How to Judge CBG Seeds

Look for a named breeder and a clear statement that the line is CBG-dominant.
Check the reported CBG and THC figures, and treat them as ranges rather than guarantees.
Buy sealed, original breeder packaging.
Check the rules where you live, since laws on low-THC and CBG genetics differ by state.

Store CBG seeds the same way as any other pack: sealed, cool, dark and dry, out of reach of children and pets.

Seeds, the Law and Our Rules

Cannabis laws differ by state, and federal hemp and seed rules are changing under Section 781. Check the law where you live before you buy anything. Our cannabis seeds by state guide links every state and its official sources, and our explainer on what Section 781 is covers the federal side.

Every buyer must be 21 or older. We sell seeds only to adults 21+.

Introduction to CBG and Its Appeal in Cannabis Cultivation

CBG is often called the “mother of cannabinoids” because THC, CBD, and many other cannabinoids are derived from CBG’s precursor form, CBGA.

CBG strains are relatively new, but they’re gaining popularity fast, especially among those looking to expand beyond traditional THC and CBD strains. However, growing CBG-rich strains comes with some unique challenges, so it’s essential to choose the right strain based on your goals, experience, and setup.

Tips for Maximizing CBG Yield and Quality

Optimize Growing Conditions

CBG-rich strains prefer stable environments. Keep the temperature between 70°F to 85°F, maintain relative humidity between 40% to 50%, and ensure plenty of light (18 to 24 hours during vegetative stages).

Nutrient Management

CBG strains generally respond well to balanced nutrients but require higher phosphorus levels in the flowering stage to enhance bud development.

Harvest Timing

Harvest timing is crucial for preserving CBG levels. Since CBG converts to other cannabinoids as the plant matures, it’s best to harvest a bit earlier than you might with high-THC or high-CBD strains to capture maximum CBG.

Proper Drying and Curing

Dry your CBG buds slowly in a dark, well-ventilated area at around 60°F and 60% humidity to avoid potency loss. Curing for at least 2 to 3 weeks helps preserve the terpenes and enhance flavor.

Frequently Asked Questions

What are CBG strains?

Cannabis lines bred so that cannabigerol (CBG) stays the dominant cannabinoid, usually with very low THC.

Which CBG strains are best known?

White CBG, Stem Cell CBG, Jack Frost CBG and Sour G CBG are among the best-known CBG lines.

Are CBG strains legal everywhere?

No. Laws on low-THC and CBG genetics vary by state. Check the law where you live.

Do you give growing advice for CBG strains?

No.

What is CBGA?

Cannabigerolic acid, the first cannabinoid the plant makes. Enzymes convert it into THCA, CBDA and CBCA.

Why do CBG strains have so little THC?

They carry genetics that limit the conversion of CBGA into THCA, so CBGA builds up instead.

Do CBG strains have an aroma?

Yes. Terpenes are made separately from cannabinoids, so CBG lines can have strong aromas.

What chemotype are CBG strains?

They are usually classed as Type IV, the CBG-dominant chemotype.

Is CBG the same as CBGA?

No. CBGA is the acid form the plant makes; CBG is the neutral form, produced mainly when plant material is heated or aged.

What is the best CBG strain for beginners?

White CBG is an excellent choice for beginners due to its resilience and low maintenance requirements.

How long does it take for CBG strains to mature?

CBG strains typically mature within 8 to 11 weeks, depending on the strain.

What yields can I expect from CBG plants?

Yields vary by strain. Jack Frost, for instance, offers generous yields, while others may prioritize CBG concentration over high yield.

🌱 New to this? Start with our complete guide: CBG Seeds.

Bottom Line

CBG strains show how far selective breeding has come. For adults 21+, CBG seeds are a distinctive chemotype worth adding to any collection.

Sources

Wikipedia: Cannabigerol

Last updated October 7, 2026 by James Bean, founder of Seeds Here Now. Nothing here is legal advice. See our disclaimer, terms of use and shipping policy.