Autoflower Comparison

Gorilla Glue Auto vs Bruce Banner Auto

Everything you need to know before buying seeds — THC, yield, difficulty, effects, and the best places to buy in 2026.

Updated June 2026 · Based on verified grow data and community reviews

Quick Comparison

Category
Gorilla Glue Auto
Bruce Banner Auto
Type
Balanced Hybrid Auto
Sativa-Leaning Hybrid Auto
THC
24–29%
25–29%
Difficulty
Easy-Moderate
Easy-Moderate
Yield (Indoor)
400–600 g/m²
450–650 g/m²
Seed to Harvest
63–70 days total
70–77 days total
Height
60–100 cm
80–130 cm
Effects
Heavy, relaxing, euphoric, glued-to-couch
Euphoric, cerebral, creative, then relaxing
Best For
Evening
Afternoon
Flavors
Earthy, pine, diesel, sour
Sweet berry, diesel, earthy

Gorilla Glue Auto Overview

Balanced Hybrid Auto 24–29% THC Gorilla Glue #4 × BF Super Auto

Fast Buds' Gorilla Glue Auto brings the legendary GG4 experience to the autoflower world without compromise. Testing up to 29% THC, this auto version preserves the extreme resin production and heavy-hitting effects that made the original famous. The plants stay compact but produce dense, sticky buds coated in the same glue-like trichomes that named the original strain. For growers, GG Auto is one of the best high-potency autoflowers available — manageable size, fast cycle, and the same sticky, pungent buds that extraction artists love.

🌱 Growing Tips

Plant directly in final container (3–5 gallon). Support branches from day 45 onward as buds get heavy and sticky. LST during weeks 2–3 significantly increases yields. Moderate feeding — start at 50% strength. Carbon filtration is essential for the diesel aroma. Harvest when trichomes are mostly cloudy with 10–20% amber.

Bruce Banner Auto Overview

Sativa-Leaning Hybrid Auto 25–29% THC Bruce Banner × BF Super Auto

Fast Buds' Bruce Banner Auto captures the Hulk-like potency of the original in an autoflowering format that's ready in just 70–77 days. This is one of the highest-yielding autoflowers on the market, with plants that grow larger than most autos while maintaining the 25–29% THC levels that made Bruce Banner legendary. The berry-diesel flavor profile is preserved beautifully, and the effects follow the same pattern as the photoperiod version — an immediate cerebral rush followed by progressive full-body relaxation.

🌱 Growing Tips

BB Auto grows larger than most autos — use 5 gallon containers and give it space. LST is highly recommended to manage height and increase bud sites. This strain is a heavy feeder for an auto — can handle full-strength nutrients by mid-flower. Support branches during late flower. The 70–77 day cycle is slightly longer than GG Auto but the extra yield makes it worthwhile.

Head-to-Head Comparison

Fast Buds' two most potent autoflowers, battling for the crown. Both push the limits of what autoflowers can achieve on potency, but they're built for different purposes. Gorilla Glue Auto is the compact resin machine — shorter plants, faster cycle (63–70 days), and the extreme stickiness that makes it perfect for extract production. Bruce Banner Auto is the yield king — larger plants, higher per-square-meter yields, and a more complex high that starts cerebral before settling physical. The extra 7–10 days of grow time for Bruce Banner pays dividends in extra bud weight. For growers running perpetual harvests in tight spaces, GG Auto's compact size and faster turnaround make it more efficient. For growers maximizing single harvests, BB Auto's superior yields are hard to argue with. Both produce genuine top-shelf flower that rivals photoperiod quality.

Where to Buy Gorilla Glue Auto & Bruce Banner Auto Seeds

These are the seed banks we recommend based on breeder selection, reliability, and community trust. Affiliate links support this site at no extra cost to you.

OUR TOP PICK

North Atlantic Seed Co (NASC)

Reddit #1

Largest selection from 300+ breeders — the community #1 pick on Reddit

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Multiverse Beans

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Frequently Asked Questions

Remarkably close. Both auto versions test 24–29% THC, which is within range of well-grown photoperiod GG4 and Bruce Banner. Fast Buds' Super Auto genetics have essentially eliminated the potency gap for these particular strains.
Bruce Banner Auto yields more per plant and per square meter. It's one of the highest-yielding autoflowers available, with indoor yields of 450–650 g/m² compared to GG Auto's 400–600 g/m².
No — Fast Buds strains are not available at ILGM or Homegrown Cannabis Co, which only sell their own branded genetics. NASC and Multiverse Beans carry the full Fast Buds catalog.

The Verdict

Choose Gorilla Glue Auto if…

you want the fastest cycle, most compact plants, and maximum resin production for extracts — GG Auto finishes a week faster in less space

Choose Bruce Banner Auto if…

you want maximum autoflower yields, don't mind slightly taller plants, and prefer a more complex high that starts energizing

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