An independent 2026 review of Gorilla Glue (also known as GG#4 or Original Glue) from ILGM. The GG Strains origin and double-Cup heritage, the resin-soaked grow profile, indoor and outdoor yield, balanced hybrid effect, terpene profile, and how it stacks up against Bruce Banner and White Widow.
Quick answer: Gorilla Glue, sometimes labeled GG#4 or Original Glue, is the Cannabis Cup winning resin monster that defined the late 2010s. ILGM's feminized photoperiod typically tests 24 to 28 percent THC, flowers in 8 to 9 weeks, and yields a heavy 5 to 7 ounces per plant indoors. The effect is balanced hybrid leaning slightly indica: euphoric onset, deep relaxation back half, strong enough to glue a grower to the couch (the name is not subtle). Grow difficulty is moderate. The plants get tall, the buds get dense, the resin coats everything, and the trim scissors literally stick. Worth the work.
Gorilla Glue has one of the better-documented origin stories in modern cannabis breeding. GG Strains, a Las Vegas based breeding outfit run by Joesy Whales and Lone Watie, bred the original Gorilla Glue line in 2013 by crossing Chem's Sister (a Chemdawg phenotype), Sour Dubb, and Chocolate Diesel. The breeders pulled multiple phenotypes from the cross and selected several for further work. The fourth phenotype (GG#4) hit hardest.
The strain rode a remarkable two-year run through the cannabis competition circuit. GG#4 won the Cannabis Cup at the Michigan medical competition in 2014, then took High Times Cannabis Cup in 2014 and again in 2015. By 2016 it had been reproduced by virtually every commercial seed bank in the legal market, often under slightly different names to avoid trademark issues (the original Gorilla Glue trademark holder, the adhesive company, sued GG Strains in 2017, which is why much of the catalog now uses GG#4 or Original Glue).
The name comes from a story the breeders tell about an early test crop where the resin production was heavy enough to gum up trim scissors and stick fingers together. Anyone who has trimmed Gorilla Glue at harvest understands the name was not marketing exaggeration. The buds genuinely coat your hands with sticky resin within minutes of contact.
ILGM's feminized photoperiod is sourced from stable phenotypes of the GG#4 line. For more context on ILGM as a seed bank, see our full ILGM Seed Bank review. Gorilla Glue sits at the high-yield, high-potency end of the catalog, in the same tier as Bruce Banner. Our Bruce Banner review covers the closest comparable strain.
Gorilla Glue is a moderate-difficulty strain. Not first-grow material. Not impossible either. A grower who has run two or three cycles on easier strains like Northern Lights Autoflower or Blueberry has the foundation to run Gorilla Glue successfully. The areas that need extra attention are stretch management, feeding intensity, and humidity control through the resin-heavy late flower.
Gorilla Glue stretches more in flower than its phenotypes suggest from veg. Plants commonly double or triple in height during the first three weeks of the 12/12 cycle. A plant that looked manageable at 18 inches at flip can finish at 4 to 5 feet without intervention. Indoor growers running a 5-foot tent need to either flip earlier than usual or commit to aggressive topping and training to keep the canopy under control. Outdoor plants can finish at 6 to 8 feet with no management at all.
Gorilla Glue responds extremely well to training. Topping once or twice in veg multiplies main colas. ScrOG (screen of green) is an excellent fit for this strain, locking the canopy at a single height and converting the natural stretch into bud weight rather than vertical leaf. LST (low-stress training) tie-downs through veg and into early flower keep the lower branches productive. Untrained Gorilla Glue is a single tall main cola plant; trained Gorilla Glue is a flat canopy of equal-sized bud sites and significantly higher yield.
Gorilla Glue is a heavy feeder. The strain demands more nitrogen in veg and more phosphorus and potassium in flower than easier strains like Blueberry. Standard nutrient lines at the higher end of the recommended dilution work; specialty bloom boosters in mid to late flower contribute to the dense bud density the strain produces. Calcium and magnesium supplementation is essential, especially in coco and hydro. Underfeeding shows up as small buds and lower-than-advertised yields; the strain has the genetic potential, but it cannot deliver without the inputs.
The defining late-flower challenge with Gorilla Glue is humidity. The bud density and the heavy resin production combine to make the strain unusually susceptible to bud rot in the last two weeks. Target humidity in the 40 to 45 percent range for the final two weeks of flower, with strong airflow under and through the canopy. Indoor humidity control through a dehumidifier is essentially required in any climate that pushes RH above 55 percent in late flower. Outdoors in humid climates (Michigan, the Southeast, the Pacific Northwest) Gorilla Glue is harder to finish clean than drier-climate strains. The base setup principles are covered in our Learn to Grow at Home guide.
Soil, coco, and hydro all work. Hydro and coco show the largest yield numbers because they support the aggressive feeding schedule Gorilla Glue can absorb. Soil produces slightly smaller yields but slightly more nuanced terpene expression. For a grower running Gorilla Glue for the first time, soil in a 5 to 7 gallon fabric pot reduces feeding-management risk and still produces a strong crop.
Gorilla Glue is one of the higher-yielding strains in any modern catalog and is the highest-yielding strain in ILGM's photoperiod feminized lineup alongside Bruce Banner. Indoor plants under quality LED commonly produce 5 to 7 ounces per plant, with a properly trained canopy in good conditions pushing 8 ounces or more. Outdoor plants in full sun routinely produce 7 to 10 ounces and can exceed a pound per plant in long-season climates.
Flowering time runs 8 to 9 weeks, slightly faster than the strain's potency level would suggest. With a vegetative period of 4 to 6 weeks ahead of flower, the full indoor cycle is 12 to 15 weeks from seed to harvest. Outdoors in the Northern Hemisphere, the strain finishes in early to mid October, which works for most US climates but pushes the edge for the shortest northern seasons. Michigan growers should plan around a late-September to early-October finish and have a contingency for rain at harvest, given the bud rot susceptibility.
The bud structure deserves a separate note. Gorilla Glue produces large, dense, chunky flowers densely coated with trichomes. The strain has earned its reputation as a resin producer; the visible coat of trichomes at harvest is heavier than almost any other strain in the catalog. This is part of why Gorilla Glue dominated the concentrate market in the late 2010s. Even with modest growing, the resin output makes any sort of hash or rosin production particularly productive on this strain.
Gorilla Glue's effect is balanced hybrid with a slight indica lean. Onset is fast and strong, more euphoric than most pure indicas, with a creative cerebral edge in the first 30 minutes. The back half settles into heavy body relaxation. The combination is unusual; many balanced hybrids feel half-strength in both directions, but Gorilla Glue manages full intensity on both ends of the experience. Common reported use cases include evening unwind, pain relief, and creative work in the front portion of the effect. We are not making medical claims; we are reporting what users consistently report. Discuss any health-related use with a qualified medical professional.
The terpene profile is heavy and unusual. Dominant terpenes include caryophyllene (peppery, spicy), limonene (citrus, sharp), and myrcene (earthy, herbal). The aroma is often described as diesel, pine, chocolate, and earth, sometimes with a coffee or sour note depending on phenotype. It is not a sweet or fruity strain. Buyers expecting a Blueberry or Wedding Cake terpene profile will find Gorilla Glue notably more pungent and savory. The flavor on inhale carries the same pine and pepper character as the aroma, with a slight chocolate finish in well-cured flower.
Cure matters on this strain. Two weeks is a floor; four to six weeks is when the terpene profile fully develops and the harshness of fresh flower mellows. Growers who consume Gorilla Glue out of an early cure will get the potency but miss the complexity.
If the goal is maximum weight per plant, Gorilla Glue is one of the top two or three picks in ILGM's catalog. The combination of 5 to 7 ounces indoor yield and 24 to 28 percent THC translates to exceptional THC weight per square foot of grow space. For a grower running a single 4x4 tent and trying to maximize the harvest, Gorilla Glue trained as a ScrOG is hard to beat.
For users who measure a strain by THC number, Gorilla Glue's consistent 24 to 28 percent test results put it in the upper tier. The effect lives up to the test numbers; this is not a strain where the lab reads high and the experience reads moderate.
The exceptional resin production makes Gorilla Glue particularly productive for ice water hash, dry sift, and solventless rosin. Growers running a small home press will find the rosin yield per gram of flower among the highest available.
For a user who wants both head and body in a single strain, Gorilla Glue is one of the few that delivers both at full intensity. Pure indicas miss the cerebral edge; pure sativas miss the body. Gorilla Glue covers both lanes.
Gorilla Glue's training requirements, feeding intensity, stretch management, and humidity sensitivity make it a poor first photoperiod. A new grower will likely undertrain it, underfeed it, and either get bud rot or a fraction of the strain's potential. Run Northern Lights Auto or Blueberry first; the path to Gorilla Glue runs through those.
A grower with a 4-foot or shorter tent who has not done topping or LST will find Gorilla Glue's stretch overwhelming. The plants will hit the light before they finish flower. The strain rewards training; it punishes the absence of it.
Outdoor Gorilla Glue in humid climates needs canopy management to avoid bud rot. A grower who plants a seed in the ground and lets it run will likely lose substantial bud weight to rot in the last two weeks. Manageable, but not a hands-off outdoor strain.
Gorilla Glue is not Blueberry. The aroma is pungent, diesel-forward, savory rather than sweet. Users expecting fruit terpenes should look at Blueberry or Wedding Cake instead.
ILGM pricing on feminized Gorilla Glue photoperiod seeds in 2026 typically runs around $9 to $12 per seed on the 5-pack, with lower per-seed pricing on the 10-pack and 20-pack. The rotating buy-10-get-10-free promotion ILGM runs across the catalog drops the effective cost considerably when Gorilla Glue is included in the active window. Verify current ILGM pricing and active promotions on the Gorilla Glue product page before ordering, since the catalog and sale structure shift seasonally.
For a strain that consistently delivers 5 to 7 ounces of 25 percent THC flower per plant indoors, the pricing math is strong. Even at $12 a seed, the cost per finished gram of flower from a successful Gorilla Glue grow is among the lowest in any home grow scenario. The 5-pack is the appropriate starting point for a grower wanting to run a cycle or two; the 10-pack pays off when a sale is active or when planning multiple consecutive runs.
Gorilla Glue is the strain a grower picks for maximum output, peak potency, and a balanced hybrid effect that delivers on both ends of the experience. ILGM's feminized photoperiod runs true to the GG#4 lineage: 24 to 28 percent THC, 8 to 9 week flower, 5 to 7 ounces per plant indoors, and a resin coat that genuinely sticks the trim scissors together. The grow requires more attention than beginner strains, particularly around training, feeding, and late-flower humidity. The payoff is one of the most productive harvests a home grower can pull from a single plant. For an experienced grower stepping up from Blueberry or Northern Lights, for a hash or rosin maker, or for a grower whose goal is maximum THC per square foot of tent, Gorilla Glue is a strong recommendation. For first-timers and growers without training experience, run the easier strains first and come back to this one.
If you grow in Michigan, the state's adult-use law allows home cultivation within set plant limits. Our Michigan home grow guide summarizes the rules, and the official details are on the State of Michigan Cannabis Regulatory Agency site. Always confirm your own state and local laws before planting.
If Gorilla Glue fits your grow plan and you have the experience to manage the training and humidity, ILGM is the seed source we recommend. Germination guarantee applies, shipping is discreet, and the feminized photoperiod has been a catalog staple since the strain hit the broader market. Check the current ILGM Gorilla Glue product page for active promotions before ordering.
Gorilla Glue rewards a grower who knows feeding and training in detail. The ILGM Grow Bible PDF covers germination through harvest including the canopy management and feeding ramp sections that matter most for heavy-yielding strains like Gorilla Glue. Free download, no purchase required.
Gorilla Glue, also known as GG#4 or Original Glue, is a balanced hybrid bred by GG Strains in Las Vegas in 2013 from a cross of Chem's Sister, Sour Dubb, and Chocolate Diesel. The phenotype that became GG#4 won the Cannabis Cup in 2014 and again in 2015 and rapidly became one of the most reproduced strains in the modern market. ILGM sells a stable feminized photoperiod version.
Gorilla Glue is among the high-potency strains in any modern catalog. THC typically tests in the 24 to 28 percent range under quality grow conditions, with some phenotypes reported above 30. CBD is below 1 percent. The high potency, the heavy resin production that gave the strain its name, and the balanced hybrid effect are why GG#4 became one of the defining strains of the 2010s.
Gorilla Glue is a photoperiod strain that flowers in roughly 8 to 9 weeks once the light cycle is switched to 12/12, slightly faster than its potency would suggest. Add a vegetative period of 4 to 6 weeks and the full indoor cycle runs about 12 to 15 weeks from seed to harvest. Outdoors in the Northern Hemisphere it is typically ready in early to mid October.
Gorilla Glue is one of the higher-yielding strains in ILGM's catalog. Indoor plants under quality LED typically produce 5 to 7 ounces per plant, with a well-managed canopy capable of pushing higher. Outdoor plants in full sun can reach 7 to 10 ounces or more per plant. Combined with 24 to 28 percent THC, the strain delivers exceptional weight per square foot of grow space.
Moderate. Gorilla Glue is not beginner-impossible, but it is not as forgiving as Blueberry or Northern Lights Auto. It demands more attention to canopy management, more aggressive feeding, and reasonable humidity control through the heavy resin production. A grower who has completed two or three successful cycles on easier strains can run Gorilla Glue successfully. A first-time photoperiod grower should plan extra learning time.
ILGM sells feminized Gorilla Glue photoperiod seeds in 5-pack, 10-pack, and 20-pack options, with the rotating buy-10-get-10-free promotion that lowers effective per-seed cost when active. ILGM's germination guarantee applies. Verify current ILGM pricing and active promotions on the Gorilla Glue product page before ordering, since the catalog and sale structure shift seasonally.
Affiliate disclosure: Love Growing Weed earns commissions on ILGM orders placed through affiliate-tagged links on this site. The commission does not change the price you pay. Our reviews are independent and reflect the editorial team's honest assessment of each product. We only recommend products we would buy ourselves. Cannabis is a regulated product; review your state and local laws before ordering. Content is for adults 21 and older.