How to grow Bruce Banner #3 Auto
- Breeder: Herbies
- Genetics: Indica/Sativa Hybrid
- THC: up to 26%
- Type: Autoflower
- Difficulty: easy
- Seed to harvest: about 9 to 10 weeks
- Flavors: sweet, earthy, diesel
Bruce Banner #3 Auto is a Sativa-dominant autoflower (26% THC) giving an energetic, creative Sativa lift followed by a calming Indica finish, with a sweet, earthy, diesel flavor.
What is specific about Bruce Banner #3 Auto
- Autoflower, avoid transplanting and heavy training; it can't recover lost veg time, so stress sets it back.
- Growers rate this beginner-friendly, forgiving of small mistakes.
- Rewards strong light and steady feeding with heavy yields.
- Very high THC, nutrient-hungry in flower; ramp feeding gradually and watch for tip burn.
Indoor calendar for Bruce Banner #3 Auto
| Stage | When | Note |
|---|---|---|
| Germination | week 1 | Seed in its final pot; autoflowers dislike transplanting. |
| Seedling and growth | weeks 2 to 4 | Light on 18 hours a day for the whole grow; no switch to 12/12 needed. |
| Flowering | from about week 4 to week 10 | Flowering starts by age, not by light. |
| Harvest | week 9 to 10 | Judge by trichomes, not the calendar. |
| Dry and cure | weeks 10 to 14 | One to two weeks drying, then at least two weeks curing in jars. |
About 12 to 14 weeks from seed to cured buds.
Week by week
Germination: Days 1–7
Pop the seed.
- Soak in a moist paper towel or plant 1cm deep in light, airy soil.
- Keep warm (22–25°C), humid and dark until the sprout appears.
- Moist, never soggy.
Seedling: Weeks 2–3
First true leaves.
- Gentle light on 18/6, high humidity (~65%).
- Tiny waterings near the stem; let the top dry between.
- Quarter-strength nutrients at most.
Vegetative: Weeks 4–6 (auto)
Build the plant.
- Autoflowers veg briefly then flower on their own, start in the final pot, don't transplant late.
- Feed grow (high-N) nutrients; train (LST/topping) for an even canopy.
- Sativa-leaning: leggier, give vertical room.
Flowering: ~5–6 weeks of bloom
Buds bulk up.
- Stays on 18/6 to harvest.
- Switch to bloom (high-P/K) nutrients; lower humidity (~45%) to prevent bud rot.
- Watch trichomes: mostly cloudy with some amber = peak ripeness.
Flush & harvest: Final 1–2 weeks
Finish clean.
- Plain water (no nutrients) the last 1–2 weeks for a smoother smoke.
- Harvest, wet-trim, dry slowly (~60°F / 60% RH, 7–14 days).
- Cure in jars 2+ weeks, burping daily at first.
~9–10 weeks seed to harvest.
Growing Bruce Banner #3 Auto outdoors
Sown outdoors in mid May, after the last frost, Bruce Banner #3 Auto should be ready in mid to late July. That leaves time for a second run: a seed sown by early July finishes around early to mid September.
Drying and curing
Its sweet notes come from the most volatile terpenes, the first to go in a warm, fast dry. Dry slowly around 18 °C and 60% humidity for 10 to 14 days and cure in jars to keep them.
How Bruce Banner #3 Auto compares
At 9 to 10 weeks it finishes faster than 72% of the 72 autoflowers in our guides (typical: 10.5 weeks).
Its THC, up to 26%, is above the typical 20% for these autoflowers.
Bred by Herbies, one of 50 Herbies strains with a grow guide here.
| Similar strain | Seed to harvest | THC | Breeder |
|---|---|---|---|
| Purple Gelato Autoflower | 8 to 10 weeks | 25% | Herbies |
| Auto Mimosa Punch | 10 to 12 weeks | 20% | Dutch Passion |
| Auto Brooklyn Sunrise | 11 to 12 weeks | 20% | Dutch Passion |
| Auto Glueberry O.G. | 11 to 12 weeks | 20% | Dutch Passion |
Effects
relaxing, euphoric, creative
Grower verdict: 6 reviews, average 5/5.
Questions
Is Bruce Banner #3 Auto easy to grow?
Bruce Banner #3 Auto is considered easy to grow and flowers automatically without a light schedule change. This read draws on 6 grower reviews.
When is Bruce Banner #3 Auto ready outdoors?
Sown outdoors in mid May, after the last frost, Bruce Banner #3 Auto should be ready in mid to late July. That leaves time for a second run: a seed sown by early July finishes around early to mid September.
How strong is Bruce Banner #3 Auto?
The breeder lists up to 26% THC. Real results depend on light, feeding and harvest timing.
Does Bruce Banner #3 Auto need a light change to flower?
No. Bruce Banner #3 Auto is an autoflower: it flowers by age and goes from seed to harvest in about 9 to 10 weeks on 18 hours of light a day.
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