Original Auto Cheese 420 Fast Buds by FastBuds – High-Yielding, Potent Autoflower with Loud Cheese Terps

Original Auto Cheese 420 Fast Buds is a powerhouse autoflower that packs up to 550 g/m² of dense, resin-drenched buds in just 63 days, thanks to its elite Cheese lineage and upgraded terpene profile.

Feeling overwhelmed by complicated grow plans and underwhelming yields? You’re not alone. Many growers jump in with high hopes, only to end up with weak plants, confusing timelines, and buds that don’t deliver on the promised flavor or potency. The result? Frustration, wasted time, and the nagging feeling that maybe this strain just isn’t for you—even when the real issue was the process, not the plant.

That ends now. Original Auto Cheese 420 Fast Buds isn’t just easy—it’s designed for success. With a clear, no-fuss growth cycle and forgiving nature, this strain guides you from seed to harvest with confidence. Follow the right steps, and you’ll be rewarded with loud, cheese-bomb buds that hit hard and taste even better.

Technical specifications

• Breeder / Brand: FastBuds
• Type: Autoflowering
• Dominance: Indica 70% / Sativa 30%
• Genetics: Cheese × Ruderalis
• Flowering time: 9 weeks from germination
• Indoor yield: 400–550 g/m² (1.3–1.8 oz/ft²)
• Outdoor yield: 60–140 g/plant (2–5 oz/plant)
• Indoor height: 70–110 cm (2.30–3.61 ft)
• Outdoor height: 70–110 cm (2.30–3.61 ft)
• Difficulty: Low – perfect for beginners
• Structure: Short, stout, with dense branching and tight internodal spacing
• Climate: Thrives in moderate to hot climates; handles heat well, less tolerant to cold
• Resistance: Moderate resistance to mold and pests; avoid high humidity in late flowering
• Training: Suitable for LST; avoid topping or FIM due to short cycle
• Recommended pot: 18–27 L final pot, early transplant
• Light schedule: 18/6 or 20/4 throughout the entire cycle
• Smell in grow: Very strong – use a carbon filter
• THC: 21%
• CBD:
• Aromatic profile: Myrcene, limonene, caryophyllene
• Flavour: Earthy, sour, fruity, with a sharp cheese punch
• Effect: Balanced cerebral onset followed by deep physical relaxation – ideal for nighttime use

How to grow Original Auto Cheese 420 Fast Buds

Get the most out of your grow with this simple, phase-based guide tailored to the strain’s genetics and fast cycle.

Quick start and germination

Launch your grow with confidence—this strain sprouts fast and strong.

• Soak seeds in water for 12–24 hours to soften the shell.
• Use the paper towel method at 22–25 °C and high humidity.
• Transplant once the taproot reaches ~1 cm.
• Start in a 1 L pot to avoid overwatering.
• Boost root development with X-Seed organic vegan seed germinator | BAC.

Stable seedling phase

Keep young plants healthy and on track with gentle care.

• Use low-intensity light (20–30% power) for the first 3–5 days.
• Water only when the top 2–3 cm of soil is dry.
• Maintain humidity at 60–70%.
• Apply Acti-Vera Bio Bizz to strengthen immunity and reduce stress.
• Transplant to final pot (18–27 L) by day 10–14.

Directed vegetative growth

Guide your plant for maximum bud sites and even canopy.

• Run 18–20 hours of light daily—no photoperiod switch needed.
• Use LST to open up lower colas and improve light penetration.
• Keep pH at 6.0–6.5 (soil) or 5.8–6.2 (coco).
• Feed with mild nutrients—avoid nitrogen overload.
• Support branches with soft ties as they stretch.

Flowering phase management

Maximize resin and flavor during the critical flowering weeks.

• Lower humidity to 40–50% to prevent mold.
• Boost bud density with TopBooster Aptus during peak flowering.
• Ensure strong airflow to manage the intense aroma.
• Flush with plain water 7–10 days before harvest.
• Watch trichomes: harvest when milky with slight amber for balanced effect.

Advantages of following this flow instead of improvising

• Consistent, high yields every time
• Fewer mistakes like overwatering or nutrient burn
• Better control over smell and plant structure
• Maximized resin and terpene production
• Reduced risk of mold and pests
• Confidence from seed to harvest
• Perfect buds without stress

Frequently Asked Questions

Can I grow Original Auto Cheese 420 Fast Buds outdoors?

Yes, this strain thrives outdoors in warm, sunny climates. Just be mindful of its strong aroma—consider planting aromatic herbs nearby to mask the scent. Use a greenhouse or grow tent if discretion is a concern.

Why is my plant not fattening up during flowering?

Buds take time to swell—patience is key. As long as you’re providing proper nutrients and light, they’ll fatten in the final 2–3 weeks. Avoid stress during this phase to ensure peak development.

Is LST better than topping for this strain?

Absolutely. Topping can stress autoflowers and reduce yields. LST gently opens the canopy without shock, making it the safer, more effective choice for even growth and better light exposure.

What light schedule should I use?

Stick with 18/6 or go for 20/4—both work well. More light means slightly better yields, but 18/6 is perfectly sufficient and easier on energy bills.

How do I handle the strong smell during flowering?

The aroma is intense, especially in the last weeks. Use a carbon filter like those in Alg-A-Mic BioBizz-equipped setups or sealed grow tents to keep things discreet.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown a lot of Cheese phenos over the years, but the Original Auto Cheese 420 Fast Buds stands out. I run it in 20 L pots under 600W LEDs with a 20/4 light cycle. I start LST early—around day 12—to spread the canopy and get even light distribution. No topping, ever. That’s a rookie mistake with autos.

One thing I learned the hard way: don’t skip the flush. I once harvested early to test, and the harshness was real. Now I flush for 10 days, dry slowly at 18 °C and 55% RH, and cure in glass jars for 4 weeks. The result? Smooth, flavorful smoke with a knockout body high. It’s my go-to for unwinding after a long day. Plus, the trichomes are so thick, it’s a hash-maker’s dream. If you want big yields without the hassle, this is your strain.