Green-O-Matic Autoflowering Seeds · Fast, Easy & Discreet Indoor/Outdoor Grow

The Green-O-Matic Auto from Green House Seeds is a legendary autoflowering strain designed for growers who value speed, simplicity, and solid results without the fuss. It delivers a fast-hitting, relaxing stone wrapped in a sweet, earthy flavor profile, all from a plant that practically grows itself.

Ever feel like growing your own is a massive time commitment, or that you just don't have the space for a towering jungle? You're not alone. Many aspiring growers get stuck before they even start, overwhelmed by long flowering times, complex nutrient schedules, and the need for a dedicated grow room. The frustration of waiting months only to face potential issues can kill the joy. What if you could skip the guesswork and get from seed to stash in record time, with a plant that stays discreet and forgives mistakes?

If you're just starting out: how Green-O-Matic Auto helps you

This strain is your best friend for a first-time success story. It's bred to be forgiving and straightforward, removing the biggest hurdles new growers face.

• Idiot-Proof Genetics: Its autoflowering nature means no light schedule changes. Just give it 18-20 hours of light from start to finish and watch it do its thing.
• Compact & Stealthy: It stays naturally short, perfect for small spaces, balconies, or discreet outdoor autoflowering projects. No need for complex training to control height.
• Fast Turnaround: Go from seed to harvest in as little as 8-10 weeks total. You get satisfaction and results quickly, keeping motivation high.
• Stress-Tolerant: It handles higher temperatures and minor feeding mistakes better than many finicky photoperiod strains, giving you a safety net.

If you already have experience: why it deserves a place in your kit

For the seasoned grower, Green-O-Matic Auto offers reliable performance and efficiency that complements any garden strategy.

• Perfect "Bumper Crop": Use it to fill gaps in your main grow or run a quick cycle between photoperiod harvests. Its speed maximizes your annual yield.
• SoG Champion: Its uniform, crown-shaped growth with side branches reaching up makes it ideal for a Sea of Green setup, maximizing yield per square meter.
• Low-Odor Operation: Its subtle, sweet aroma during growth is much easier to manage than pungent strains, a boon for any discreet setup.
• Test New Techniques: Its resilience makes it a great candidate for trying out new growing methods or nutrients with lower risk.

Advantages and benefits for any level

• Ultra-Fast Flowering: Ready in just 6 weeks of flowering, meaning a total life cycle of around 8-10 weeks from seed.
• Impressive Yield Potential: Can produce up to 800 g/m² (2.6 oz/ft²) indoors under optimal conditions, and around 30 g (1.06 oz) per plant outdoors.
• Compact Stature: Reaches a manageable height of 40-76 cm (1.31-2.49 ft), perfect for limited spaces and stealth.
• Sweet & Creamy Flavor: Enjoy a unique taste mix of earthiness and cream with a hint of sweetness, reminiscent of its White Widow heritage.
• Relaxing, Functional Stone: Provides a mild but fast-hitting and long-lasting indica-dominant effect that's relaxing without being overwhelming.
• High Resilience: Shows good resistance to common fungal diseases and tolerates a range of conditions, making it robust.

Typical mistakes this strain helps you avoid

Green-O-Matic's genetics are your shield against common pitfalls.

• Overwatering: Its vigorous growth doesn't mean it's thirsty. Let the medium dry slightly between waterings to avoid root issues.
• Overfeeding: It's not a heavy feeder. Start with half-strength nutrients and increase gradually to prevent nutrient burn.
• Starting in Final Pot: While autos dislike transplanting, starting in a very large pot can slow initial growth. Use a moderate final pot of 11-18 L (2.9-4.8 gal).
• Ignoring Low Odor: Don't skip the carbon filter thinking it's low-smell. In late flower, the aroma intensifies—better safe than sorry.

Technical specifications

• Breeder: Green House Seeds
• Type: Autoflowering, Feminized
• Genetics: Ruderalis x Moroccan x White Dwarf x Lowryder
• Dominance: Indica (80% Indica, 10% Sativa, 10% Ruderalis)
• Indoor Flowering: 6 weeks auto-flowering. Can flower under any photoperiod between 12-18 hours of light.
• Outdoor Flowering/Harvest: 5-6 weeks, finish by early October (Northern Hemisphere). Can flower anytime temperatures are above 10°C (50°F).
• Indoor Yield: Up to 800 g/m² (2.6 oz/ft²) in a Sea of Green setup.
• Outdoor Yield: Approximately 30 g (1.06 oz) per plant.
• Indoor Height: 40-76 cm (1.31-2.49 ft).
• Outdoor Height: Short and strong structure.
• THC: Approximately 15%
• CBD: Approximately 0.6%
• Difficulty: Low - Excellent for beginners.
• Aroma/Flavor: Earthy, creamy, sweet with floral and slightly spicy hints.
• Effect: Mild, fast-hitting, long-lasting, physically relaxing stone.

How to grow Green-O-Matic Auto: a quick guide

This autoflower is built for simplicity. Follow these steps for a stress-free harvest.

Start Smart: Germinate seeds in a warm (22-25°C / 71-77°F), moist environment. Plant directly in its final pot (11-18 L / 2.9-4.8 gal) to avoid transplant shock. Use a light, airy substrate for best root development.

Feed Lightly: It's not a heavy feeder. Begin with a mild, balanced nutrient solution at 1/4 strength and increase gradually. Overfeeding is a bigger risk than underfeeding with this strain.

Light it Up: Provide 18-20 hours of light daily throughout its entire life cycle. No need to change the light schedule—it flowers automatically based on age.

Climate Control: Keep temperatures between 20-26°C (68-79°F). Maintain humidity around 50-60% during vegetative growth, lowering to 40-50% in late flowering to prevent mold.

Harvest on Time: Watch the trichomes. Harvest when most are milky white for a more energetic effect, or when some turn amber for a heavier, more sedative stone. Flush with plain water for the last 7-10 days.

Frequently Asked Questions

Is Green-O-Matic Auto good for beginners?

Absolutely. It's famously beginner-friendly due to its autoflowering nature, compact size, tolerance to minor mistakes, and relatively short grow cycle. It's a great first strain to build confidence.

How tall does it get?

Indoors, it typically stays between 40-76 cm (1.31-2.49 ft), making it perfect for small tents, cabinets, or discreet balcony grows. Its bushy, crown-shaped structure maximizes yield in a small footprint.

What's the smell like during growth?

The smell is relatively low and sweet during most of the grow, becoming more pronounced in late flowering with earthy, creamy, and slightly spicy notes. Using a carbon filter in enclosed spaces is still recommended for full discretion.

Can I grow it outdoors?

Yes, it's excellent for outdoor growing in pots or gardens. It finishes fast (5-6 weeks of flowering) and can be planted anytime temperatures consistently stay above 10°C (50°F). Its short stature also helps it stay discreet.

What kind of high does it produce?

It delivers a classic, indica-dominant stone: it comes on relatively quickly, feels physically relaxing and calming, and lasts a good while. It's more of a "body melt" than a cerebral race, perfect for unwinding.

Personal Experience of Pevgrow’s CEO (Alan)

Let me be straight with you: Green-O-Matic Auto is one of those strains I always recommend to friends dipping their toes into growing. Why? Because it works. It's not the most complex or loudest-flavored strain in our catalog, but it's arguably one of the most reliable. I've run it in small indoor tents, on sunny terraces, and even as a quick-fill crop between bigger projects. Its speed is its superpower—seeing solid buds forming in just a few weeks is incredibly satisfying and keeps new growers hooked.

For my personal grows, I treat it like the low-maintenance friend it is. I use a simple, light soil mix and start with half-dose nutrients, only bumping it up slightly if the plant shows it's hungry (which it rarely does). I keep the lights on an 18/6 schedule from day one and basically let it do its thing. The key is not to love it to death with too much water or food. The yield, especially in a small Sea of Green setup, always impresses me for such a short cycle. The smoke? It's a smooth, creamy, and earthy smoke that delivers a very functional relaxation—great for a post-work chill without being glued to the couch. It's a timeless, no-nonsense auto that deserves its legendary status.