Sour G R1 is a vigorous, colorful feminized hybrid with a profile that bridges sweet and fuel. Ethos Genetics combined Jet Fuel Gelato with a Sour D x Marshmallow OG cross to create a plant with fairly large, spongy flowers in dark green with hints of purple, and an aroma of sweet florals, gasoline, pine and candy.
She stacks nicely, grows with real vigor and finishes in 63 to 70 days with a heavy yield. The breeder describes her character as old-school skunk, and her colorful expressions make every plant a little different.
If you are looking for Ethos seeds with gas, pine and a sweet twist, the Sour G strain is worth a spot in the garden. TAC is listed at 22-27%.
Sour G R1 Lineage: Jet Fuel Gelato x (Sour D x Marshmallow OG)
The cross brings together two strong fuel lines. Jet Fuel Gelato carries modern dessert sweetness with an aggressive gas kick, while Sour D supplies the sharp, diesel-like funk that made it a legend. Marshmallow OG rounds things out with a soft, sugary OG note and dense structure.
The R1 suffix marks the first reversed-female feminized generation. A selected female is reversed to produce pollen, which is used on another female, so the seeds carry female-only genetics.
The result has an old-school skunk character sitting on top of modern gas and candy, a nod to classic genetics with a contemporary finish.
Aroma, Flavor and Effect
The nose starts with sweet floral notes, then turns sharp with gasoline and fresh pine. A hint of candy rides underneath and comes forward as the flowers cure. Ethos lists candied-sweet, floral, gassy and pine as the main terpene families.
On the palate the gas and pine dominate the inhale, with a floral, candy-tinged finish on the exhale. It is a bold, layered flavor that holds up in flower and in extracts.
The effect is a classic hybrid. Expect a balanced experience that touches both the head and the body, well suited to afternoon or evening sessions.
Growing Sour G R1 Indoors and Outdoors
Ethos lists her for beginner, intermediate and pro growers. She is vigorous with medium-to-tall height and medium-to-long internodes, and she stacks nicely along her branches.
Her flowers are fairly large and spongy, yet dense, so a little extra defoliation helps. Thinning fan leaves in early flower and again around mid-bloom improves light penetration and airflow, which keeps the colas healthy. Topping and a trellis net help manage her stretch indoors.
Outdoors and in greenhouses she performs well too. Her 63 to 70 day flowering window is a bit longer than some, so in regions with early autumn rain a greenhouse or covered spot offers extra security.
Expect a heavy yield of dark green flowers with purple hints and unique terps.
Sour G R1 Characteristics
| Strain type | Feminized photoperiod |
| Generation | R1 (reversed-female feminized) |
| Genetics | Jet Fuel Gelato x (Sour D x Marshmallow OG) |
| TAC | 22-27% (Total Active Cannabinoids) |
| Effect | Classic hybrid, balanced |
| Aroma/Terpenes | Sweet floral, gasoline, pine, hints of candy |
| Yield | Heavy |
| Flowering time | 63-70 days |
| Height | Medium to tall |
| Grow level | Beginner, intermediate and pro |
| Ideal environment | Indoor, greenhouse and outdoor |
| Best cultivation technique | Topping, trellis and extra defoliation |
FAQ
What are the parents of the Sour G strain?
Sour G R1 is Jet Fuel Gelato crossed with a Sour D x Marshmallow OG hybrid.
What does Sour G R1 smell like?
Sweet florals open the profile, followed by gasoline and pine, with hints of candy underneath.
How long does Sour G R1 take to flower?
Ethos Genetics lists a flowering time of 63 to 70 days.
Does Sour G R1 need defoliation?
A little extra defoliation helps. Her fairly large, spongy flowers benefit from improved airflow and light penetration.
What does her bud look like?
Expect fairly large, dark green flowers with hints of purple. They are spongy but still dense.
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