Auto Xtreme Haze by Dutch Passion – High-Yield Autoflowering Sativa Strain for Potent, Frosty Buds

Auto Xtreme Haze by Dutch Passion is a powerhouse autoflowering sativa that delivers massive, trichome-coated yields and a mentally stimulating high—perfect for growers who want top-tier potency without the long wait.

Feeling like your current strain just doesn’t hit hard enough or takes forever to mature? You’re not alone. Many growers end up stuck with weak yields, slow cycles, or bland effects that don’t match the hype.

And when you’re investing time and space, mediocre results feel like a waste. You plant with excitement, only to harvest disappointment—small buds, low resin, or a high that fizzles out too fast. That frustration builds until you start questioning whether growing at home is even worth it.

That’s where Auto Xtreme Haze steps in. Bred from Amnesia x Super Haze, this Dutch Passion legend turns that struggle into a victory. It grows fast, yields heavy, and finishes in just 11–12 weeks from seed to harvest—no light cycle changes needed. Expect dense, frosty colas that shimmer with resin and deliver a long-lasting, euphoric sativa buzz that keeps you energized and focused.

Massive Yields with Minimal Effort

Auto Xtreme Haze is built to impress, even in less-than-ideal conditions. Whether you're growing indoors under LEDs or outdoors in a sunny spot, this strain pushes the limits of autoflowering potential.

• Produces up to 350 g (12.35 oz) per plant outdoors under optimal conditions
• Indoor yields reach 450–550 g/m² (1.6–2.0 oz/ft²) with strong lighting
• Thrives in 18–20 hours of daily light, making it perfect for beginners and experts alike
• Reaches 0.90–1.10 m (2.95–3.61 ft) tall, with a strong central cola and dense lateral branching
• Finishes flowering in just 11–12 weeks, no matter the season

Simple Setup, Big Results

Forget complex routines—Auto Xtreme Haze is designed for simplicity. Just plant, feed, and watch it explode into a resin factory.

1. Start with a final pot of 18–27 L (5–7 gal) to avoid transplant stress
2. Use well-aerated soil or coco with Biobizz outdoor kit for balanced nutrition
3. Provide 18–20 hours of light daily—no switching required
4. Water when the top inch of soil feels dry; avoid overwatering
5. Support heavy branches with soft ties as buds develop

Powerful, Uplifting Effects You Can Feel

• THC levels reach very high (approx. 20–22%) for a strong cerebral kick
• Delivers a clear, focused high—perfect for daytime creativity or social moments
• Flavor profile is classic Haze: lemon, pine, and spicy notes with a menthol finish
• Aroma is intense and lingering—consider a carbon filter if discretion is key
• Effects last for hours, with no heavy crash or munchies overload

Grow Smarter, Not Harder

Maximize your results with a few smart choices. Use Pure Zym by Plagron to boost root health and nutrient uptake, or add Plagron Sugar Royal in late flowering to enhance taste and resin production.

Technical specifications

• Breeder / Brand: Dutch Passion
• Type: Autoflowering
• Dominance: Sativa-dominant hybrid
• Genetics: Amnesia × Super Haze
• Flowering time: 11–12 weeks (seed to harvest)
• Indoor yield: 450–550 g/m² (1.6–2.0 oz/ft²)
• Outdoor yield: Up to 350 g (12.35 oz) per plant
• Indoor height: 0.90–1.10 m (2.95–3.61 ft)
• Outdoor height: Up to 1.20 m (3.94 ft)
• Difficulty: Low to medium
• Structure: Tall, vigorous, with dense branching
• Resistance: Good resistance to mold and pests
• Training: Suitable for LST; avoid topping or FIM
• Recommended pot: 18–27 L (5–7 gal) final pot from the start
• Light: 18–20 h daily throughout the cycle
• Temperature: 22–26 °C (71.6–78.8 °F) in veg; 20–25 °C (68–77 °F) in flower
• Humidity: 60–70% seedling; 50–60% veg; 40–50% flower
• pH: 6.0–6.5 (soil); 5.8–6.2 (coco/hydro)
• Smell in grow: High – use carbon filter if needed
• THC: Approx. 20–22%
• CBD: Low (approx.
• Aromatic profile: Limonene, pinene, myrcene
• Flavour: Lemon, pine, spice, menthol
• Effect: Cerebral, uplifting, long-lasting – ideal for daytime use

How to grow Auto Xtreme Haze successfully

Get the most from your Auto Xtreme Haze with this expert-backed plan.

Quick overview: Autoflowering · Dutch Passion · 11–12 week cycle · low to medium difficulty · ideal for indoor, outdoor, or greenhouse.

Safe start: Germinate in a moist, dark environment at 22–25 °C (71.6–77 °F). Transplant once the taproot is ~1 cm (0.4 in) long.

• Use jiffy pellets or starter cubes for gentle rooting
• Transplant directly into final 18–27 L (5–7 gal) pot
• Keep humidity high (60–70%) in early stages
• Begin mild feeding after first true leaves appear
• For faster root development, Rhizotonic XP strengthens young plants

Directed growth: Maintain 18–20 hours of light daily. Water when topsoil is dry and ensure good airflow.

• Use airy soil or coco with added perlite for drainage
• Apply balanced nutrients like Biobizz outdoor kit
• Train gently with LST to expose lower buds
• Avoid topping—autoflowers don’t recover well
• Watch for stretch in pre-flower; support early if needed

Efficient flowering: From week 3–4, buds begin to swell. Reduce humidity and increase airflow to prevent mold.

• Switch to bloom-focused nutrients after stretch ends
• Support heavy colas with soft ties or stakes
• Use Plagron Sugar Royal in week 6 to boost terpenes
• Flush 7–10 days before harvest for smoother smoke
• Harvest when trichomes turn milky to amber

Frequently Asked Questions

How long does Auto Xtreme Haze take to grow?

From seed to harvest, Auto Xtreme Haze takes 11–12 weeks. It doesn’t require a change in light cycle, making it perfect for beginners or those with limited time.

Is Auto Xtreme Haze good for beginners?

Yes. It’s forgiving of minor mistakes, grows fast, and doesn’t need advanced techniques. Just provide consistent light, water, and nutrients.

Does it smell strong during flowering?

Yes, it has a powerful Haze aroma. If discretion is important, use a carbon filter or grow in a well-ventilated area.

Can I grow it outdoors in colder climates?

Yes. It has good resistance to temperature fluctuations and finishes before most autumn rains, making it suitable for temperate and Mediterranean climates.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Auto Xtreme Haze in my greenhouse last summer, and it was one of the most impressive autos I’ve seen. At 1.10 m (3.61 ft) tall, it dominated the space with thick, resinous colas that sagged under their own weight. I used 20-hour light cycles and a 25 L (6.6 gal) pot with Biobizz soil. By week 10, the smell was intense—lemon, pine, and that unmistakable Haze kick. I supported the main stem early, which paid off. The high was clean, uplifting, and lasted all afternoon. Perfect for working in the garden or chilling with friends. If you want a sativa that actually delivers, this is it.