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Frostbanger Auto 420 Fast Buds – High-THC Indica Hybrid with Heavy Resin & Frosty Buds

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Frostbanger Auto by Fast Buds is a trichome-packed indica hybrid with up to 29.5% THC. Expect dense, frost-covered buds, a sweet creamy flavor, and deep body relaxation. Ready in just 9 weeks, it’s perfect for resin lovers and chill seekers alike.
 

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Frostbanger Auto by Fast Buds is a trichome-loaded indica-dominant hybrid that delivers up to 29.5% THC, producing deeply relaxing effects and buds so frosty they look like they've been dipped in powdered sugar. This compact powerhouse finishes in just 9 weeks, making it ideal for fast, high-impact grows with serious visual and sensory payoff.

Are you tired of autos that look weak and taste bland?

Most autoflowers promise big yields or high potency but fall short on appearance and flavor. You end up with airy buds, weak trichome coverage, and a forgettable smoke that doesn’t live up to the hype.

What happens if you keep settling for average autos?

You waste time, space, and nutrients on plants that don’t deliver. Your harvest lacks that eye-catching sparkle, the vapor isn’t smooth, and the high doesn’t hit deep enough to truly unwind. You’re left wondering if it’s worth the effort—especially when you could be growing something that actually impresses.

The ultimate frosty autoflower that actually delivers

Frostbanger Auto isn’t just another high-THC strain—it’s a next-gen autoflower bred for connoisseurs who want it all: insane resin, knockout potency, and a creamy-sweet flavor that lingers. With dense, rock-hard buds blanketed in trichomes, this strain turns heads and melts stress in one go. Whether you're growing indoors or outdoors, it finishes fast and rewards you with premium-quality results.

What this strain does for your grow and your chill

Frostbanger Auto transforms your grow from basic to legendary. It’s built for speed and stealth, staying compact at 0.70–1.20 m (2.30–3.94 ft), yet packing a punch that rivals top photoperiods. The high starts with a gentle euphoria before sinking into full-body calm—perfect for evenings, winding down, or escaping the daily grind. And with its sweet, creamy fruit flavor, every hit feels like a treat.

Key features and benefits in a nutshell

  • Up to 29.5% THC – delivers a powerful, fast-acting high that relaxes both mind and body.
  • Extreme trichome production – buds look like snow-covered gems, ideal for extracts and visual appeal.
  • 9-week flowering cycle – go from seed to harvest in under 10 weeks, no light schedule changes needed.
  • Compact size (0.70–1.20 m / 2.30–3.94 ft) – perfect for stealth grows, small tents, or balcony setups.
  • Pungent, sweet-creamy aroma – fills the room with rich terps, though a carbon filter is recommended indoors.
  • Yields up to 550 g/m² (1.8 oz/ft²) indoors – impressive returns for an auto, especially in limited spaces.

How to grow Frostbanger Auto in 5 simple steps

  1. Start with a 3–5 L pot and move to 18–27 L early to support root development.
  2. Use a well-aerated soil or coco mix—consider adding BioTabs Tablets for slow-release nutrition.
  3. Provide 18–20 hours of light daily; use strong LEDs for best resin production.
  4. Apply low-stress training (LST) early to control height and maximize light exposure.
  5. Harvest when trichomes turn milky to amber for a balanced, relaxing effect.

Technical specifications

  • Breeder / Brand: Fast Buds
  • Type: Autoflowering
  • Dominance: Indica 60% / Sativa 40%
  • Genetics: (GG4 Auto F6 × Bruce Baner Auto F5) × Sour Diesel Auto F5
  • Flowering time: 9 weeks from seed to harvest
  • Indoor yield: 450–550 g/m² (1.5–1.8 oz/ft²)
  • Outdoor yield: 60–200 g/plant (2–7 oz/plant)
  • Indoor height: 0.70–1.20 m (2.30–3.94 ft)
  • Outdoor height: 0.70–1.20 m (2.30–3.94 ft)
  • Difficulty: Medium (resilient but responds well to proper care)
  • Structure: Short, bushy, with dense branching and tight bud structure
  • Climate: Thrives in warm, dry conditions; tolerates moderate heat
  • Resistance: High resilience to stress, pests, and mold
  • Training: Suitable for LST and SCROG; avoid topping or FIM
  • Smell in grow: Very strong – carbon filter recommended
  • THC: Up to 29.5%
  • CBD:
  • Terpenes: Myrcene, caryophyllene, limonene
  • Flavor: Sweet, creamy, fruity, with spicy and fresh notes
  • Effect: Fast-acting, relaxing, full-body calm with a touch of euphoria

How to grow Frostbanger Auto – expert grow guide

Maximize your Frostbanger Auto yield and quality with this concise, phase-by-phase plan.

Quick overview

Fast Buds’ Frostbanger Auto is a resilient, high-THC autoflower ready in 9 weeks. Ideal for indoor or outdoor grows in warm climates.

  • Autoflowering – no light cycle changes needed
  • 9-week total cycle – harvest fast, grow often
  • Medium difficulty – forgiving but rewards attention
  • Ideal for 18–27 L pots – supports strong root zone
  • Best in warm, dry environments – avoid humidity spikes

Safe start

Launch your grow with strong germination and early vigor.

  • Germinate at 22–25 °C with high humidity (70%)
  • Use starter cubes or moist paper towels
  • Transplant when radicle reaches ~1 cm (0.4 in)
  • Start with a 3–5 L pot to avoid overwatering
  • Add BioTabs Tablets to boost root health from day one

Directed growth

Set up a strong, bushy structure with even canopy development.

  • Provide 18–20 hours of full-spectrum LED light daily
  • Keep temps at 22–26 °C and RH at 50–60%
  • Water when topsoil feels dry—avoid soggy soil
  • Apply LST early to spread branches and control height
  • Use airy soil or coco with good drainage

Efficient flowering

Maximize resin and density during the critical flowering phase.

  • Reduce RH to 40–50% to prevent mold
  • Ensure strong airflow under the canopy
  • Support heavy colas with soft ties or a trellis
  • Boost flowering with P-Boost during peak bloom
  • Watch for trichome maturity—harvest at milky-amber

Harvest and refinement

Finish strong with proper drying and curing for premium smoke.

  • Flush with plain water 7–10 days before harvest
  • Cut branches and hang in a dark room at 18–22 °C
  • Maintain 50–60% RH during 7–10 day dry
  • Cure in jars for 2–4 weeks, opening daily to release moisture
  • Store in airtight containers away from light and heat

Frequently Asked Questions

Is Frostbanger Auto good for beginners?

Yes, it’s beginner-friendly thanks to its resilience and straightforward growth. Just avoid overwatering and use a carbon filter if growing indoors due to its strong smell.

Can I grow Frostbanger Auto outdoors?

Absolutely. It thrives in warm, sunny climates. Plant in late spring or early summer for best results. Just be mindful of its pungent aroma—it will attract attention.

Does it need heavy feeding?

No. Frostbanger Auto prefers a light-to-moderate feeding schedule. Overfeeding can lead to nutrient burn, so start low and increase only if needed.

Is it good for making extracts?

One of the best. With extreme trichome production and rich terpene content, it’s a top choice for hash, rosin, or concentrates.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Frostbanger Auto in my 1.20 x 1.20 m (4 x 4 ft) tent with a 600W LED. I started with a 5 L pot and moved to 25 L at week 3. I used BioTabs and a light organic base, adding P-Boost at week 5. The plant stayed short and bushy, perfect for my space. By week 8, the buds were rock-hard and shimmering. I flushed for 10 days, dried slowly, and cured for three weeks. The high hit fast—euphoric at first, then deeply relaxing. The flavor? Smooth, creamy, with a hint of fruit. It’s now one of my go-to autos for quality and consistency. If you want a frosty, potent auto that doesn’t need babysitting, this is it.

I’ve tried a lot of high-THC autos, but Frostbanger stands out. It’s not just about the numbers—29.5% is impressive, sure—but the experience is what matters. The trichomes are insane, the yield solid, and the effect perfectly balanced. I let a friend try it, and he said, “This doesn’t feel like an auto—it feels like a prize-winning photo.” That’s the compliment I’ll remember.

Type: Type Autoflowering
Banks: Banks FastBuds
Phenotype: Phenotype Indica 60% / Sativa 40%
Harvest outdoor H.N: Harvest outdoor H.N up to 200 g/plant
Indoor production: Indoor production 450 – 550 gr/m2
Outdoor production: Outdoor production 60 – 200 g/plant
Indoor flowering period: Indoor flowering period 9 weeks
Features: Features High THC
Rapid flowering
Resistant
THC: THC up to 29.5%
Flavor and aroma: Flavor and aroma Creamy
Fruity


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Comments|Questions Frostbanger Auto 420 Fast Buds: 1 - Average Rating: 5/5

Customer reviews Frostbanger Auto 420 Fast Buds

Grade 
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Phil Swesey - Verified buyer
03/07/2025 Brighton, United States

Excellent quality and yield. I loved the smoothness of its flavor and its powerful relaxing effect.

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    In 24/48 hours we will ship your order.

  • Are the seeds guaranteed to germinate?

    If you live in a country where the cultivation of cannabis is legal and you decide to plant the seeds, it is good that you know that all the seeds that we commercialize have germination guarantee.

    If you germinate with the method of paper napkins and you have followed all the steps that we indicate here, you will only have to return us the seeds not germinated in their original packaging and when we receive them we will proceed to the change.

    Then we take care of requesting the return to the seed bank, we do not transfer this responsibility and time to our customers.

  • What if I receive a bad or damaged product?

    If you receive a broken product due to transport, you have to notify us within 24 hours for insurance coverage, always contact us as soon as possible and we will fix the problem!

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