Lemon Haze Auto by Barneys Farm – 70% Sativa Autoflower with Citrus Punch · Fast 10-Week Harvest

Lemon Haze Auto by Barneys Farm is a fast, sativa-leaning autoflower that delivers a powerful citrus punch and a clear, energizing high—ready from seed to harvest in just 10 weeks.

Ever feel like your grow is stuck in slow motion? You plant, you wait, you wait some more… and by the time harvest rolls around, your motivation’s dried up like old trichomes. What if you could skip the endless wait and still get top-shelf Haze quality?

That’s the daily reality for growers stuck with long-cycle photoperiods or weak autos that barely deliver. You’re either chained to your tent for months or settling for bland buds with zero kick. And when you finally smoke it? More disappointment. Harsh smoke, muddy flavor, and a high that crashes before lunch.

Now imagine this: a plant that shoots up fast, smells like fresh-cut lemons, and rewards you in under 10 weeks with dense, resinous buds that actually taste like something. Lemon Haze Auto isn’t just another auto—it’s a full-flavored, high-THC sativa experience that fits your pace. No more compromises. Just fast, flavorful, and freakishly potent.

Your Grow Space Transformed in 70 Days

Forget the old days of autos that looked like sad little weeds. Lemon Haze Auto grows tall and proud, up to 1.10 m (3.61 ft) indoors, with long, sativa-style colas that fill your space with vibrant green and a citrusy aroma that hits you before you even open the tent. It’s not just about speed—it’s about quality. You’ll go from empty grow box to a canopy of fragrant, trichome-covered buds in less than two months. And when harvest time comes, you’re not scraping together a few grams—you’re looking at up to 550 g/m² (19.4 oz/ft²) of bright, energetic flower.

Outdoors, it’s just as impressive. At 1.20 m (3.94 ft) max, it’s discreet enough for balconies or small gardens, yet sturdy enough to handle light wind and temperature swings. Whether you’re in a closet or a backyard, this auto turns wasted time into real results—fast.

What You’ll Harvest with Lemon Haze Auto

• Frosty, resin-drenched buds with a zesty lemon and earthy spice aroma
• Up to 550 g/m² (19.4 oz/ft²) indoors under strong LED or HPS lighting
• Up to 250 g (8.82 oz) per plant outdoors in sunny, warm conditions
• Compact, manageable plants perfect for small spaces or stealth grows
• Fast turnaround—harvest every 10 weeks and start again
• Buds with a smooth smoke and a clean, uplifting high that lasts
• Consistent, high-THC potency (up to 22%) in every harvest

Simple Setup for Maximum Results

1. Start with a 3–5 L pot and transplant once to a final 18–27 L container early
2. Use well-aerated soil or coco with Barneys Farm’s recommended nutrients
3. Provide 18–20 hours of light daily with full-spectrum LEDs or HPS
4. Keep temperatures at 22–26 °C (72–79 °F) in veg, 20–25 °C (68–77 °F) in flower
5. Maintain humidity at 50–60% in early stages, dropping to 40–50% in late flower
6. Support tall colas with soft ties or trellis netting to prevent breakage
7. Flush 7–10 days before harvest for a smoother, cleaner taste

Why This Auto Actually Delivers on Flavor and Potency

• Because it’s bred from true Lemon Haze genetics, you get authentic citrus terps and a cerebral high
• Which means a fresh, zesty aroma and taste that doesn’t fade after drying
• Thanks to its 70% sativa dominance, you get an uplifting, creative buzz—perfect for daytime
• With THC levels up to 22%, it delivers strong, long-lasting effects without sedation
• And because it’s autoflowering, you can grow it year-round with no light cycle changes
• So you enjoy fast, repeatable harvests of premium sativa flower—no experience needed

Technical specifications

• Breeder / Brand: Barneys Farm
• Type: Autoflowering, feminized
• Dominance: 70% Sativa / 30% Indica
• Genetics: Lemon Haze × BF Super Auto #1
• Total cycle: 9–10 weeks from germination to harvest
• Indoor yield: 450–550 g/m² (15.9–19.4 oz/ft²)
• Outdoor yield: 180–250 g/plant (6.3–8.8 oz/plant)
• Indoor height: 0.90–1.10 m (2.95–3.61 ft)
• Outdoor height: 1.00–1.20 m (3.28–3.94 ft)
• Difficulty: Easy
• Structure: Tall, sativa-like, with long flowering colas
• Resistance: Moderate resistance to mold and pests
• Training: Suitable for LST; avoid topping or FIM
• Recommended pot: 18–27 L final container
• Light: 18–20 h daily throughout the cycle
• Temperature: 22–26 °C (72–79 °F) veg / 20–25 °C (68–77 °F) flower
• Humidity: 50–60% early / 40–50% late flowering
• pH: 6.0–6.5 (soil) / 5.8–6.2 (coco or hydro)
• THC: Up to 22%
• CBD: Low
• Aromatic profile: Limonene, ocimene – citrus, sweet, earthy
• Flavour: Lemon, spice, herbal undertones
• Effect: Uplifting, energetic, cerebral – ideal for daytime use

How to grow Lemon Haze Auto seeds for best results

Quick overview: Autoflowering · Barneys Farm · 9–10 week cycle · Easy · Ideal for indoor tents or outdoor patios.

Solid start: Germinate in a moist paper towel at 22–25 °C (72–77 °F). Transplant once the taproot is 1–2 cm long.

• Use a light, airy seedling mix with perlite
• Keep humidity high (60–70%) for first 3–5 days
• Provide gentle light (T5 or low-power LED)
• Water lightly—just enough to keep medium moist
• For faster rooting, Clonex Rooting Hormone Gel boosts early development

Stable seedling: Focus on root health and steady growth.

• Move to final 18–27 L pot early—autos hate root disturbance
• Use organic soil or coco with feminized seeds feeding schedule
• Add mycorrhizae to improve nutrient uptake
• Keep temperatures stable and avoid overwatering
• Begin light LST to control height and expose bud sites

Directed flowering: Support growth and maximize resin production.

• Provide 18–20 hours of full-spectrum light daily
• Feed with bloom nutrients from week 3 onward
• Use Top Crop Fertilizer Pack Professional for balanced, potent yields
• Monitor pH and EC—keep levels stable
• Support tall colas with soft ties or netting

Harvest & cure: Time it right for maximum flavor and effect.

• Check trichomes: harvest when mostly milky for energetic high
• Flush 7–10 days before cutting to remove excess nutrients
• Dry slowly at 18–22 °C (64–72 °F) and 50–60% RH
• Cure in glass jars for 2–4 weeks, burping daily
• Enjoy a smooth, citrusy smoke with long-lasting clarity

Frequently Asked Questions

How long does Lemon Haze Auto take to harvest?

From seed to harvest, Lemon Haze Auto takes 9–10 weeks. It flowers automatically, so no light cycle changes are needed—just 18–20 hours of light daily from start to finish.

What is the THC level of Lemon Haze Auto?

Lemon Haze Auto reaches up to 22% THC, delivering a strong, uplifting high that’s perfect for daytime use. Potency may vary slightly based on growing conditions.

Is Lemon Haze Auto good for beginners?

Absolutely. With its easy growth, resistance to stress, and forgiving nature, it’s ideal for first-time growers. Just keep the basics right—light, water, and nutrients—and you’ll be rewarded.

How tall does Lemon Haze Auto get?

Indoors, it grows 0.90–1.10 m (2.95–3.61 ft). Outdoors, it can reach up to 1.20 m (3.94 ft). Its height is manageable, especially with light LST.

Does Lemon Haze Auto smell strongly during flowering?

Yes, it has a strong citrus and earthy aroma. If discretion is a concern, use a carbon filter like those in our grow shop to control odors.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown a lot of autos, but Lemon Haze Auto stands out. I ran three plants in 25L pots under a 600W LED, 18/6 lighting. They stretched hard in week 3—up to 30 cm (11.8 in) in five days—but responded well to LST. By week 6, they were covered in white pistils and smelling like a lemon grove.

What surprised me? The yield. I got 512 g/m² (18.1 oz/ft²) on my main plant—dense, frosty colas with a sharp citrus kick. The high was clean, motivating, perfect for working on the garden or writing. No anxiety, no crash. I cured it for three weeks, and the flavor deepened into a sweet-lemon finish. My tip? Don’t top it—autos don’t recover well. But do train it early. And don’t skip the flush—it makes a huge difference in smoothness.