BCN Power Plant Auto by Seed Stockers – Sativa-Dominant Autoflower with Massive Yields & 23% THC

BCN Power Plant Auto by Seed Stockers is a powerhouse sativa-dominant autoflower that delivers massive harvests in just 11 weeks, with up to 400 g/m² indoors and THC levels reaching 23%. This strain is your shortcut to strong, flavorful buds without the hassle.

Still using slow, low-yield autos?

Most autoflowers take ages and give you barely enough for a few rolls. They stretch too much, break under their own weight, or barely hit 15% THC — leaving you with weak smoke and wasted time.

And let’s be real: if you’re growing to enjoy, not just experiment, you want something that actually delivers. Something that fills the jar, hits hard, and tastes like it was worth the effort.

Weak genetics, inconsistent phenos, and disappointing harvests are the norm — unless you switch to a strain bred for performance, not just survival.

Meet your new yield machine — no compromises

BCN Power Plant Auto changes the game. It’s a fast, XXL-sized autoflower that grows like a photoperiod but finishes in 11 weeks. With THC up to 23%, sweet citrus and earthy notes, and yields that rival indoor legends, it’s built for growers who want quality, quantity, and speed — all in one seed.

Why this autoflower outperforms your current strain

You’re not just upgrading your grow — you’re upgrading your entire experience. BCN Power Plant Auto grows tall and strong, resists mold, and produces dense, resinous buds even in less-than-ideal conditions. It’s the rare auto that doesn’t sacrifice potency for speed.

Unlike finicky photoperiods, it thrives on 20 hours of light and doesn’t need a switch to flower. No stress, no timing errors — just set it and forget it.

Key features you’ll notice from the very first grow

• Ready in just 11 weeks from seed to harvest — perfect for quick turnarounds.
• Produces up to 400 g/m² indoors and massive yields outdoors — one of the highest in its class.
• THC up to 23% delivers a strong, clear, energizing high — ideal for daytime use.
• Sweet citrus and earthy flavor with a spicy kick — smooth and memorable.
• Sativa-dominant structure grows tall and bushy, perfect for SCROG or screen training.
• Uniform phenotypes mean consistent results — no duds in your pack.
• Thrives both indoors and outdoors, from Spain to Scandinavia — cold-tolerant and resilient.

Who this strain is especially interesting for

Whether you’re a beginner or a seasoned grower, BCN Power Plant Auto fits seamlessly into your setup. It’s especially valuable if you’re looking for high THC without long waits, or if you want to maximize yield in limited space.

• Beginners who want an easy, forgiving strain that still delivers top-shelf results.
• Outdoor growers in temperate or Mediterranean climates seeking a fast, high-yield option.
• Medical users looking for a natural energy boost and mental clarity (non-medical use only).
• Connoisseurs who appreciate bold flavor and strong sativa effects.
• Commercial growers needing fast turnover and consistent harvests.

How to integrate it into your routine without overcomplicating things

Start with a 20L pot (45L for max yield) and a light, airy soil mix. Germinate directly in the final container — no transplant stress. Keep it under 18–20 hours of light daily, and water when the top inch feels dry.

Use low-stress training (LST) early to control height and boost yield. Avoid topping — autos don’t recover well. Feed moderately; this strain doesn’t need heavy nutrients to shine. In 11 weeks, you’ll be trimming dense, sticky colas.

Technical specifications

• Breeder / Brand: Seed Stockers
• Type: Autoflowering, feminized
• Dominance: Sativa-dominant hybrid
• Genetics: BCN Power Plant × Ruderalis
• Life cycle: 11 weeks (germination to harvest)
• Indoor yield: Up to 400 g/m² (14.1 oz/ft²)
• Outdoor yield: Very high (multiple ounces per plant)
• Indoor height: 80–110 cm (2.62–3.61 ft)
• Outdoor height: 100–140 cm (3.28–4.59 ft)
• Difficulty: Low — beginner-friendly
• Structure: Fir-shaped, strong branching, moderate stretch
• Climate: Temperate, Mediterranean, continental — tolerant to cold
• Resistance: High resistance to mold and pests
• Training: Suitable for LST and SCROG — avoid topping
• Recommended pot: 18–27 L final pot (early transplant)
• Light: 18–20 hours daily throughout the cycle
• Temperature: 22–26 °C (veg), 20–25 °C (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
• THC: Up to 23% (medium-high)
• CBD: Low (approx.
• Aromatic profile: Limonene, myrcene, caryophyllene
• Flavour: Sweet citrus, earthy, spicy, with hints of fresh fruit
• Effect: Energetic, euphoric, creative — ideal for daytime

How to grow BCN Power Plant Auto for maximum results

Get the most out of this high-performance autoflower with a simple, effective grow plan tailored to its sativa-dominant genetics and fast cycle.

Quick overview

Autoflower from Seed Stockers, 11-week cycle, low difficulty, ideal for indoor or outdoor in temperate climates.

• Type: Autoflowering, feminized
• Cycle: 11 weeks from seed to harvest
• Difficulty: Low — perfect for beginners
• Ideal space: Indoor tent or outdoor balcony
• Climate: Thrives in Mediterranean or temperate zones

Safe start

Start strong with healthy germination and early root development.

• Germinate seeds at 22–25 °C with high humidity
• Use paper towel or direct-to-pot method
• Transplant when radicle is ~1 cm long
• Start with a 3–5 L pot and move to final container
• For faster rooting, Clon Fix by Hesi boosts early growth

Directed growth

Guide your plant for maximum yield and structure.

• Provide 18–20 hours of light daily
• Use well-aerated soil or coco substrate
• Water when top layer feels dry — avoid overwatering
• Apply Funky Fungi B.A.C for stronger roots and resilience
• Use LST to control height and increase bud sites

Efficient flowering

Maximize resin and density during bloom.

• Keep humidity at 40–50% to prevent mold
• Ensure good airflow with oscillating fans
• Support heavy colas with stakes or netting
• Use bloom boosters like B'CUZZ ROOT STIMULATOR for denser flowers
• Flush 7–10 days before harvest for cleaner taste

Harvest and refinement

Nail the timing and curing for premium results.

• Harvest when trichomes are mostly milky with some amber
• Cut branches and trim sugar leaves
• Dry at 18–22 °C and 50–60% RH for 7–10 days
• Cure in glass jars for 2–4 weeks, burping daily
• Store in a cool, dark place for long-term freshness

Frequently Asked Questions

How long does BCN Power Plant Auto take to grow?

From seed to harvest, it takes approximately 11 weeks, making it ideal for fast turnarounds and multiple grows per year.

Is this strain good for beginners?

Yes, it’s very beginner-friendly. It’s resistant to pests and mold, doesn’t require complex training, and forgives minor mistakes in feeding or watering.

Can I grow it outdoors in colder climates?

Absolutely. It’s cold-tolerant and has been successfully grown outdoors in Denmark and other northern regions. Start in late spring for best results.

Does it need a lot of nutrients?

No, it performs well with moderate feeding. Overfeeding can lead to nutrient burn, so start low and increase gradually.

What’s the best way to increase yield?

Use low-stress training (LST), grow in a 27L pot, ensure strong lighting (600W LED or equivalent), and maintain optimal RH and temperature.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown a lot of autos, but BCN Power Plant Auto stood out from the first grow. I used to stick to photoperiods for quality, but this one changed my mind. I planted three seeds directly in 25L pots, under a 600W LED, 20/4 light cycle. No topping, just light LST to spread the canopy.

By week 8, the smell was intense — sweet, earthy, with a spicy kick. At 11 weeks, I harvested just under 380 g/m². The buds were dense, covered in resin, and dried beautifully. The high? Clear, uplifting, long-lasting. Perfect for daytime. I’ve since recommended it to half my team, and every single one got great results. If you want a sativa-dominant auto that actually delivers, this is it.