Bruce Banner Auto by FastBuds – XXL Yields & 25% THC in 10–11 Weeks

Bruce Banner Auto by FastBuds is a towering, high-octane autoflower that blasts out up to 600 g/m² of trichome-drenched buds in just 10–11 weeks, delivering a euphoric, creative high powered by up to 25% THC.

Worried your first auto will flop because you don’t know the rhythm? That you’ll underfeed, overwater, or miss the harvest window by days? You’re not alone — most beginners freeze at the start, afraid to mess up a strain this potent.

That fear turns into hesitation. You baby the plant, never pushing nutrients, never trimming, never training. It stays small, underdeveloped, and you end up with a harvest that barely covers the cost. The seed sits in your drawer next time, unused.

But Bruce Banner Auto isn’t meant to gather dust — it’s built to dominate your grow space. This guide cuts through the noise, showing you how to unlock its full potential from day one, so you stop guessing and start harvesting like a pro.

What to Expect in the First Few Weeks

Expect explosive growth. By week 3, your seedling will shoot upward with long internodes and a sativa-dominant stretch. Don’t panic if it looks lanky — that’s normal. The real magic starts around week 5, when stacked bud sites begin forming along every node. You’ll notice a sharp, diesel-tinged aroma early on, a sign of serious terpene production kicking in. Keep airflow strong — this giant loves space and hates humidity.

Common Mistakes and How to Fix Them

• Overpotting too early — start in 3–5 L pots and move to final 18–27 L by week 3.
• Ignoring support needs — use LST or a SCROG net early to manage height and boost yields.
• Overwatering during stretch — let the top 2–3 cm (0.79–1.18 in) dry between waterings.
• Skipping defoliation — gently remove large fan leaves blocking bud sites in week 4–5.
• Harvesting too early — wait until 70% of trichomes turn milky-white for peak potency.

How to Fine-Tune for Maximum Results

1. Start with low nutrient doses — use 1/3 strength in week 2, increasing gradually.
2. Adjust only one variable at a time — light, feed, or water — to track what works.
3. Train early — apply LST in week 3 before the stretch explodes.
4. Monitor trichomes weekly — use a handheld microscope from week 8 onward.
5. Flush 7–10 days before harvest — use plain water to improve flavor and smoothness.
6. Record your observations — note feeding, growth speed, and aroma changes.
7. Repeat what worked — lock in your winning formula for the next grow.

Benefits of Mastering This Strain

• Massive yields you can actually use — up to 200 g/plant outdoors.
• Complete confidence in your growing skills — no more second-guessing.
• Superior resin for hash, rosin, or concentrates — buds look sugar-coated.
• Consistent, uplifting effects — perfect for daytime creativity.
• Deep understanding of autoflower timing — apply it to future grows.
• Higher ROI — more grams per euro spent on inputs.

Technical specifications

• Breeder / Brand: FastBuds
• Type: F4 Feminized Autoflower
• Dominance: Sativa 65% / Indica 35%
• Genetics: Bruce Banner BX 2.0 (DHG) × Strawberry Pie Auto F5
• Autoflowering cycle: 10–11 weeks from seed to harvest
• Indoor yield: 450–600 g/m² (1.5–2 oz/ft²)
• Outdoor yield: 50–200 g/plant (1.76–7.05 oz/plant)
• Indoor height: 1.10–1.50 m (3.61–4.92 ft)
• Outdoor height: 1.10–1.50 m (3.61–4.92 ft)
• Difficulty: Medium — forgiving but responds well to training
• Structure: Tall, long internodes, heavy branching
• Ideal climate: Hot, Mediterranean, or indoor-controlled
• Resistance: Moderate to pests, low to high humidity
• Training: Suitable for LST, SCROG — avoid topping
• Recommended pot: 18–27 L final size
• Light cycle: 18–20 hours daily throughout life
• Smell in grow: Very strong — carbon filter recommended
• THC: Up to 25%
• CBD:
• Aromatic profile: Myrcene, limonene, caryophyllene
• Flavour: Berry, diesel, sweet earth
• Effect: Euphoric, creative, focused, relaxed — ideal for daytime

How to Grow Bruce Banner Auto for Best Results

Get the cycle right and this auto rewards you with frost-covered colas and a clean, energizing high.

Quick start: Germinate with confidence and avoid early stress.

• Use the paper towel method at 22–25 °C and high humidity.
• Transplant gently when the taproot reaches ~1 cm (0.39 in).
• Start in 3–5 L pots to prevent overwatering.
• For a stronger start, MYCOPLANT boosts root resilience.

Controlled growth: Manage stretch and structure early.

• Apply LST in week 3 to control height and expose bud sites.
• Move to final 18–27 L pots by week 3–4.
• Use airy soil or coco with good drainage.
• Canna Bio Terra Plus provides balanced nutrition from the start.

Flowering support: Maximize resin and density during bloom.

• Maintain RH at 40–50% to prevent mold in dense buds.
• Ensure strong airflow — oscillating fans are essential.
• Feed bloom nutrients from week 4 onward.
• Massive Bloom enhances trichome production and flower density.

Harvest readiness: Pick at peak for maximum effect and flavor.

• Use a 60x–100x microscope to check trichomes.
• Harvest when 60–70% are milky-white for a balanced high.
• Flush with plain water for 7–10 days before cutting.
• Dry slowly at 18–20 °C and 50–60% RH for smoother smoke.

Frequently Asked Questions

How long does it take to master growing Bruce Banner Auto?

Most growers nail it by the second grow. The first cycle teaches you timing and structure; the second lets you optimize yield and flavor.

How do I know if I’m feeding it right?

Leaves should stay vibrant green — yellowing means underfeeding, dark green with clawed tips means overfeeding. Adjust slowly.

What if I don’t like the high?

The effect is uplifting and cerebral. If it’s too intense, try microdosing or pair it with a CBD strain like CBG Seeds for balance.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Bruce Banner Auto last summer, and damn — it lived up to the hype. I started in 5 L pots, moved to 25 L by week 3, and used a SCROG net to manage the stretch. By week 8, the smell was insane — diesel and ripe berries flooding the tent. I underfed at first, scared of nutrient burn, but after week 5 I ramped up and saw explosive bud development. The key? Training early and not being afraid to push it. I harvested at 70% milky trichomes and got 185 g from a single plant. The high was clear, creative, and lasted hours — perfect for writing and music. My only regret? Not defoliating more. Next time, I’ll open up the canopy earlier. This one’s a keeper.