The short answer
Gorilla Glue #4, also sold as GG4 or Original Glue, is a high-THC hybrid. Lab-tested flower usually lands between 20% and 28% THC, and a dialed-in indoor room can push past 30%. CBD is nearly absent, almost always under 0.2%. On yield, plan for roughly 1.5 to 2.2 ounces per square foot indoors, or 5 to 8 ounces per plant outdoors when it gets a long season and full sun. Flowering takes 8 to 9 weeks.
Gorilla Glue #4 specs
- Lineage: Chem's Sister x Sour Dubb x Chocolate Diesel
- Type: hybrid with a slight indica lean, roughly 60/40
- THC: 20% to 28% typical, 30% or higher on the top end
- CBD: under 1%, usually under 0.2%
- Flowering time: 56 to 63 days indoors
- Indoor yield: 1.5 to 2.2 oz per square foot, about 500 to 700 g per square meter
- Outdoor yield: 5 to 8 oz per plant, more with a long veg and a dry fall
- Dominant terpenes: caryophyllene, limonene, myrcene, humulene
Those figures come from breeder specs and years of grower reports, not from one controlled trial. Treat them as a range to plan around, not a promise on the package.
is gorilla glue a creeper strain
Why the THC number moves around
Two jars of GG4 from the same harvest can test three or four points apart. A few things drive that.
Gorilla Glue Strain Effects: What Makes You Feel Happy?
- Phenotype. Not every seed from a GG4 cross expresses the same resin production. Clones from a keeper cut stay consistent.
- Harvest timing. Trichomes that are mostly cloudy with a few amber generally test higher than clear, early-pulled flower.
- Growing environment. Light intensity, temperature, and root health all influence how much resin the plant makes.
- Sample location. Top colas test higher than lower larf, and a lab sample is only a few grams out of a whole crop.
- Dry and cure. Rushed drying and short cures cost you both weight and aroma.
Total THC vs THCA on the label
Most legal-market labels report total THC, which is THCA multiplied by 0.877 plus the delta-9 THC already present. THCA is the acid form, and heat converts it into the THC that actually gets you high. A jar reading 26% total THC might only show 1% activated THC, with the rest as THCA. That is normal, and it is why the total number is the one worth comparing.
gorilla glue thc content and yield
Indoor yield
GG4 stretches hard in the first three weeks of flower, often doubling in height. Left untrained in a tent, it turns into a tall plant with a few fat colas and a pile of fluffy lower buds. Topping once or twice, then running a screen or low-stress training, spreads light across more sites and typically adds usable weight. A three to four week veg in a five gallon pot under a strong LED is the usual setup for hitting the top of that 1.5 to 2.2 oz per square foot range. Keep daytime temps in the mid 70s to low 80s Fahrenheit and keep humidity down in late flower, since those dense buds invite mold.
Outdoor yield
Outdoors this plant gets big. Transplant in late spring in a climate with six or more hours of direct sun and it can finish at six to eight feet, with the biggest plants pushing a pound of dry flower. Most home growers see 5 to 8 ounces per plant. A wet, cool autumn cuts that fast, because GG4 buds hold moisture. If your fall is rainy, plan on chopping a week early rather than losing a crop to bud rot.
What actually raises or lowers yield
- Light. This is the single biggest lever. Weak light means airy buds, no matter what you feed the plant.
- Veg time and training. More tops means more weight, up to the point where the canopy gets crowded and airflow suffers.
- Pot size. Root space caps how large the plant can get. Ten gallons outdoor beats three gallons every time.
- Environment. Consistent temps, good airflow, and stable humidity keep growth steady.
- Nutrition and pH. Overfeeding does not add yield. It burns tips and stalls the plant.
- Harvest window. Pulling early costs weight and potency. Waiting too long costs terpenes and invites rot.
Does high THC mean better
Not on its own. GG4's reputation comes from the combination of potency and a loud glue, chocolate, and pine nose. Caryophyllene and limonene shape how the high feels, and a well-cured 22% batch with strong terpenes often lands harder than a bone-dry 29% batch. Freshness matters more than the last two points on the label.
Buying GG4 at a dispensary
Ask for the certificate of analysis and check the total THC, then check the harvest or packaging date. Flower packed eight months ago has lost terpenes and moisture, even if the potency number held. Good GG4 looks dense and frosty with orange hairs, and it smells like chocolate, pine, and something vaguely chemical. If the jar smells like hay, the cure went wrong.
Bottom line
GG4 sits near the top for THC, and its yield is solid without being record-setting. Expect 20% to 28% THC, 8 to 9 weeks of flower, and about 1.5 to 2 oz per square foot indoors. Everything past that comes down to light, training, and how fresh the flower is when it reaches you.