Original Auto Critical by Fast Buds – High-Yielding Autoflowering Cannabis Seeds for Easy Growing

Original Auto Critical by Fast Buds is a high-yielding, resilient autoflowering cannabis strain that delivers massive harvests of up to 600 g/m² (1.1–1.6 oz/ft²) in just 70 days, perfect for growers who want big results with minimal effort.

Struggling to find a strain that actually delivers on both yield and ease of growth? Too many autos promise the moon but end up weak, small, or finicky under stress. You don’t want to waste time and space on a plant that needs constant babysitting or collapses in humid weather.

It’s frustrating when your plants stretch too tall, break under bud weight, or get wiped out by mold just before harvest. And if you’re growing outdoors, inconsistent performance across seasons means unreliable results and lost potential. You need a strain that’s tough, predictable, and productive—no guesswork, no stress.

Original Auto Critical solves that. With its robust genetics, it grows strong and steady in any environment, resists pests and mold, and produces heavy, frosty buds without needing advanced techniques. Whether you're a beginner or a seasoned grower, this auto thrives indoors, outdoors, or in a greenhouse with minimal input—just plant, support lightly, and harvest monster yields in under 10 weeks.

Massive Harvests with Minimal Effort

Imagine harvesting up to 600 grams per square meter of dense, trichome-covered buds in just 10 weeks—no complicated light cycles, no months of waiting. Original Auto Critical turns your grow space into a high-output machine, perfect for stacking harvests or supplying your stash for months. Its compact yet powerful structure fills every node with bud, making it ideal for small spaces or stealth grows. And because it’s autoflowering, you can grow it year-round, even in colder climates, with multiple outdoor cycles per season.

How to Grow Original Auto Critical for Maximum Results

1. Start with a final pot of 18–27 L (5–7 gal) to support its large size and heavy yields.
2. Use 18–20 hours of light daily from seed to harvest—no light cycle changes needed.
3. Apply low stress training (LST) early to control height and increase bud sites.
4. Install a trellis or bamboo stakes before flowering to support heavy branches.
5. Avoid topping or aggressive pruning—this auto grows fast and doesn’t need it.
6. Keep humidity at 40–50% in flowering to prevent mold, especially in dense buds.
7. Flush nutrients 7–10 days before harvest for a smoother, cleaner smoke.

Key Advantages and Benefits of Original Auto Critical

• Thanks to its autoflowering genetics, you can grow it year-round, which means multiple harvests and a constant supply of premium bud.
• With yields up to 600 g/m² (1.1–1.6 oz/ft²), you get commercial-grade production at home, saving money and maximizing return on space.
• Its indica-dominant hybrid structure (40% sativa / 60% indica) delivers a balanced high—relaxing yet creative—perfect for social moments, creativity, or unwinding after work.
• The classic citrus, pine, and earthy terpene profile gives a nostalgic, full-flavored experience that both old-school and new-school users love.
• High resistance to mold and pests means fewer worries and less maintenance, even in humid or unpredictable climates.
• Reaches 0.90–1.40 m (35–47 in) tall, making it manageable indoors with proper training and ideal for discreet outdoor grows.
• Flowers in just 10 weeks from seed, so you go from germination to harvest faster than most photoperiod strains.

Technical specifications

• Breeder / Brand: Fast Buds
• Type: Autoflowering
• Dominance: Indica 60% / Sativa 40%
• Genetics: Critical Autoflower
• Life cycle: 70 days (germination to harvest)
• Indoor yield: 450–600 g/m² (1.1–1.6 oz/ft²)
• Outdoor yield: 60–140 g/plant (2–5 oz/plant)
• Indoor height: 0.90–1.40 m (35–47 in)
• Outdoor height: 0.90–1.40 m (35–47 in)
• Difficulty: Low
• Structure: Short internodal spacing, dense branching
• Climate: Thrives in hot and Mediterranean climates; tolerates moderate cold
• Resistance: High resistance to mold, pests, and water stress
• Training: Suitable for LST; avoid topping or FIM
• Pot size: 18–27 L (5–7 gal) final pot recommended
• Light cycle: 18–20 h daily throughout life cycle
• THC: High (exact % not disclosed)
• CBD:
• Aromatic profile: Limonene, pinene, myrcene
• Flavour: Lemon, pine, earthy, floral
• Effect: Balanced hybrid – relaxing, creative, sociable

Care, Maintenance, and Storage

Keep your Original Auto Critical plants healthy by maintaining good airflow and avoiding overwatering, especially in late flowering. Due to its dense bud structure, this strain benefits from regular air circulation to prevent moisture buildup and reduce the risk of bud rot. After harvest, dry slowly at 18–20 °C (64–68 °F) and 50–60% RH for 7–10 days, then cure in glass jars for 2–4 weeks to enhance flavor and smoothness. Store seeds in a cool, dark place to preserve viability for future grows.

• Use a carbon filter if growing indoors to manage its strong smell during flowering.
• Inspect plants weekly for early signs of pests like spider mites or aphids.
• Apply beneficial microbes like Amanitha of Agrobacteria early to boost root health and resilience.

Frequently Asked Questions

How long does Original Auto Critical take to grow?

From seed to harvest, it takes approximately 70 days (10 weeks), making it a fast and efficient autoflowering option.

Is Original Auto Critical good for beginners?

Yes, it’s perfect for beginners thanks to its resilience, easy care, and forgiving nature under stress or minor mistakes.

Can I grow this strain outdoors?

Absolutely. It performs exceptionally well outdoors, especially in Mediterranean or hot climates, and can be grown year-round in suitable conditions.

Does this strain need a lot of nutrients?

No, it’s a moderate feeder. Avoid overfeeding—start low and increase gradually to prevent nutrient burn and stress.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown a lot of autos, but Original Auto Critical stands out for its reliability. I ran it in my 2x2 tent with a 600W LED and 20-hour light cycle—no fancy tricks. I used LST early and staked the main colas, and by week 9, the buds were rock-hard and dripping with resin. The smell during flowering was intense—citrus and pine filled the room, so I had to run a carbon filter. The high is smooth: it calms your body but keeps your mind engaged, great for evening hangs or creative sessions. My only tip? Don’t skip the trellis—those buds get heavy. I’d grow this again in a heartbeat, especially for hash production. It’s a modern classic.