Bruce Banner Auto® – Sweet Seeds – High-THC Autoflowering Strain for Potent, Euphoric Effects

Bruce Banner Auto® by Sweet Seeds is a powerhouse 7th generation autoflowering strain delivering up to 25% THC and a deeply euphoric, creativity-fueled high in just 9 weeks from seed to harvest.

Struggling with weak yields and boring highs?

You’ve tried autoflowers before — plants that barely make a gram, smell like hay, and leave you flat instead of fired up. You’re not growing just to check a box. You want that electric buzz, the mental lift, the sticky buds that glisten like they’ve been dipped in diamonds. But most autos play it safe — and you’re ready for something that doesn’t.

What happens when you keep settling for average?

Another grow cycle wasted on wispy buds and forgettable flavor. More money flushed into seeds that underdeliver. Worse — you start doubting your skills, when the truth is the genetics just weren’t built to impress. You miss out on the full sensory experience: the rich terpene punch, the cerebral rush, the kind of high that makes you see the world in HD. And let’s be real — if it’s not enjoyable, what’s the point?

The game-changer is here: Bruce Banner Auto®

Meet your new favorite autoflower — a direct descendant of one of Colorado’s most legendary “Super Strong” strains, now perfected for speed and consistency. With THC levels hitting 25%, a complex aroma of sweet fruit, diesel, and earth, and a high that’s both energizing and long-lasting, this strain doesn’t just meet expectations — it obliterates them. Grow it indoors for up to 500 g/m² or outdoors for dense, frosty colas that laugh at mold and pests. This isn’t just another auto. It’s a revolution in a seed.

What you can expect from Bruce Banner Auto®

• Up to 25% THC for a powerful, euphoric, and creativity-boosting effect
• Sweet, fruity, and diesel-like aroma with floral and earthy undertones
• Ready to harvest in just 9 weeks from germination — no timing lights
• Indoor yields of 400–500 g/m² and outdoor yields of 50–150 g per plant
• Compact yet vigorous structure, reaching 0.50–1.10 m (1.64–3.61 ft), perfect for stealth grows
• Exceptional resin production — one of the frostiest strains you’ll ever grow
• High resistance to mold, pests, and environmental stress

Technical specifications

• Breeder / Brand: Sweet Seeds
• Type: Autoflowering
• Dominance: Sativa-dominant hybrid (58.7% Sativa / 41.1% Indica / 0.2% Ruderalis)
• Genetics: Bruce Banner (elite clone) × Gorilla Girl XL Auto®
• Cycle: 9 weeks from germination to harvest
• Indoor Yield: 400–500 g/m² (11.8–14.8 oz/ft²)
• Outdoor Yield: 50–150 g/plant (1.76–5.29 oz/plant)
• Height: 0.50–1.10 m (1.64–3.61 ft)
• Difficulty: Low to medium — ideal for beginners and experts alike
• Structure and Vigour: Vigorous growth, strong branching, moderate stretch during pre-flowering
• Ideal Climate: Temperate, Mediterranean; tolerant to heat and mild fluctuations
• Resistance: High resistance to fungi (botrytis, powdery mildew), pests, and water stress
• Training: Suitable for LST and light defoliation; avoid aggressive pruning
• Recommended Pot: 18–27 L final pot (early transplant recommended)
• Light: 18–20 hours daily throughout the cycle
• Temperature: 22–26 °C (71.6–78.8 °F) in veg; 20–25 °C (68–77 °F) in flowering
• Humidity: 60–70% seedling; 50–60% veg; 40–50% flowering
• pH: 6.0–6.5 (soil); 5.8–6.2 (coco/hydro)
• Smell in Grow: Medium to high — consider a carbon filter in enclosed spaces
• THC: 18–25%
• CBD: 0.1%
• Aromatic Profile: Limonene, myrcene, caryophyllene
• Flavour: Sweet, fruity, earthy, diesel, floral
• Effect: Euphoric, stimulating, creativity-enhancing — ideal for daytime use

How to grow Bruce Banner Auto® for maximum results

Designed for speed and resilience, this sativa-dominant autoflower thrives with minimal intervention but rewards smart care with explosive yields and top-shelf resin.

Quick overview

Autoflowering · Sweet Seeds · 9-week cycle · Low to medium difficulty · Ideal for indoor tents and outdoor stealth setups.

• Start with a final 18–27 L pot to avoid transplant stress
• Use well-aerated soil or coco with added perlite for drainage
• Apply Bio Protect early to boost natural defenses against mold
• Keep light cycle at 18–20 hours daily — no changes needed
• Monitor pH weekly: 6.0–6.5 in soil, 5.8–6.2 in coco

Stable seedling stage

First impressions matter — give your Bruce Banner Auto® the best start for a dominant grow.

• Germinate in a moist paper towel or directly in substrate at 22–25 °C
• Keep humidity high (60–70%) until true leaves appear
• Water lightly — let topsoil dry slightly between irrigations
• Boost root development with Bio Rhizotonic at first watering
• Avoid nutrients for first 7–10 days

Directed growth

This strain grows fast — stay ahead with smart structure training and balanced feeding.

• Use LST to spread canopy and maximize light exposure
• Support branches early — they get heavy with resin fast
• Feed with mild organic nutrients; avoid nitrogen overload
• Enhance terpene production with OG Organics Tasty Terpenes from mid-veg onward
• Ensure strong airflow to prevent humidity buildup

Efficient flowering

The final stretch — where frost levels go from impressive to legendary.

• Reduce humidity to 40–50% to protect dense buds
• Switch to bloom-focused nutrients with higher PK
• Apply Bloom Booster in weeks 4–6 for increased trichome density
• Avoid topping or FIM — autos don’t recover well
• Flush 7–10 days before harvest for a smoother smoke

Harvest and refinement

Timing is everything — harvest when trichomes are mostly milky with a hint of amber for peak euphoria.

• Cut when 70–80% of trichomes are milky, 20–30% amber
• Dry slowly at 18–22 °C (64.4–71.6 °F) and 50–60% RH for 10–14 days
• Cure in glass jars, burping daily for 2–4 weeks
• Store in a cool, dark place to preserve terpenes and potency
• Enjoy the full evolution of flavor — from sweet diesel to earthy depth

Frequently Asked Questions

Is Bruce Banner Auto® suitable for beginners?

Yes. Its autoflowering nature, fast cycle, and high resistance make it perfect for novice growers. Just keep it well-lit and avoid overwatering.

How much yield can I expect outdoors?

Under optimal conditions, each plant produces 50–150 g. Sun exposure, soil quality, and climate play key roles in final output.

Does it smell strongly during flowering?

Yes, it has a medium to high odor profile — sweet, diesel, and floral. Use a carbon filter if growing discreetly.

Can I use training techniques like LST?

Absolutely. Low-Stress Training (LST) works great to control height and improve yields. Avoid aggressive pruning, as autos have limited recovery time.

What’s the best time to harvest for a daytime high?

Harvest when trichomes are mostly milky with a few amber ones. This preserves the energetic, creative effect without heavy sedation.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown a lot of autos, but Bruce Banner Auto® stands out like a headliner at a festival. I ran three plants in my 60x60x160 cm tent under a 250W LED, straight in 20L pots. No fancy tricks — just solid soil, consistent watering, and a weekly dose of Bio Rhizotonic early on. What shocked me was the speed: they stretched hard in week 3, but by week 6, the buds were already packing serious resin. I used LST to keep them flat, and it paid off — all colas got equal light. At week 9, I harvested 478 g/m² — and the smell? Sweet diesel with a citrus kick. The high is pure gold: uplifting, clear-headed, perfect for writing or a long walk. It’s strong, so I recommend pacing yourself. If you want a potent, fast, and reliable sativa-dominant auto, this is your seed.