Purple Haze Auto 420 Fast Buds – Fast Sativa-Dominant Autoflower with 28% THC, Cherry-Lemon Flavor & Vibrant Purple Buds

Purple Haze Auto by FastBuds is a blazing-fast sativa-dominant autoflower that rockets from seed to harvest in just 8 weeks, delivering euphoric highs, dazzling purple buds, and a sweet cherry-lemon punch with every puff.

Feeling stuck in a grow that takes forever, drains your energy, and still gives you lackluster buds? You’re not alone. Too many growers waste months on finicky plants that demand constant care and still underdeliver.

That slow progress kills motivation. You start doubting your skills, wondering if the strain is broken—or worse, if you’re just not cut out for this. But the truth? It’s not you. It’s the wrong genetics for your pace and setup.

Enter Purple Haze Auto: a modern, stabilized powerhouse bred for speed, resilience, and flavor. No more 12-week waits or fragile phenotypes. This autoflower thrives on simplicity, rewarding you with dense, frosty, purple-streaked colas in under 60 days—whether you’re a first-timer or a seasoned grower short on time.

Maximize Yield with Minimal Effort

Forget complex routines. Purple Haze Auto is built for growers who want big results without the burnout. It’s forgiving, fast, and packed with features that turn basic care into bountiful harvests.

• Because it’s an autoflower, you can grow it anytime, anywhere—no light cycle changes needed, just 18–20 hours of daily light.
• Thanks to its sativa-dominant vigor, it grows tall and strong with excellent internodal spacing, letting light penetrate deep into the canopy.
• With up to 28% THC, you get a powerful, clear-headed high that sparks creativity and keeps you social—no couch-lock, no anxiety.
• Its dense, resin-coated buds mean more potency per gram, so you need less to feel the full effect.
• And because it finishes in just 8 weeks, you can run multiple cycles a year, doubling or tripling your annual output.

Grow It Indoors or Out—It Thrives Anywhere

Whether you’ve got a stealthy closet or a sunny backyard, Purple Haze Auto adapts. It’s resistant to mold and pests, and cooler temps actually boost its signature purple hues—making it a showstopper in any garden.

• Indoors: Yields 400–550 g/m² (14–19 oz/ft²) in 7–11 L pots under LED or CFL.
• Outdoors: Produces 50–150 g/plant (1.8–5.3 oz/plant) in 50+ L containers under full sun.
• Height: Reaches 0.60–1.00 m (2.0–3.3 ft) indoors; up to 1.00 m (3.3 ft) outdoors.
• Flowering time: Exactly 8 weeks from seed to harvest—no guesswork.
• Training: Responds well to LST and SCROG; avoid topping or FIM (not recommended for autos).

Flavor That Hits Like a Time Machine

One hit and you’re back in the 60s—without the hassle. The terpene profile is a nostalgic blend of sweet cherry, zesty lemon, and that unmistakable haze tang.

• Taste: Sweet cherry, sour lemon, earthy haze—smooth on the inhale, bold on the exhale.
• Aroma: Pungent and inviting—think citrus candy with a herbal twist.
• Dominant terpenes: Limonene, myrcene, caryophyllene—known for mood-lifting and stress-relieving effects.
• No harsh aftertaste—just clean, flavorful vapor or smoke.
• Perfect for sharing: friends will beg for your stash after one toke.

Technical specifications

• Breeder / Brand: FastBuds
• Type: Autoflowering
• Dominance: Sativa 55% / Indica 45%
• Genetics: Purple Lemonade Auto F6 × Amnesia Haze Auto F5
• Flowering time: 8 weeks (from seed to harvest)
• Indoor yield: 400–550 g/m² (14–19 oz/ft²)
• Outdoor yield: 50–150 g/plant (1.8–5.3 oz/plant)
• Indoor height: 60–100 cm (23.6–39.4 in)
• Outdoor height: Up to 100 cm (39.4 in)
• Difficulty: Low
• Structure: Tall, open branching, long internodes
• Climate: Prefers warm days and cool nights; thrives in Mediterranean or temperate zones
• Resistance: High resistance to mold and pests
• Training: Suitable for LST and SCROG; avoid aggressive pruning
• Pot size: 7–11 L indoors; 50+ L outdoors
• Light: 18–20 h/day throughout the cycle
• Temperature: 22–26 °C (veg), 20–25 °C (flowering)
• Humidity: 60–70% (seedling), 50–60% (veg), 40–50% (flowering)
• pH: 6.0–6.5 (soil), 5.8–6.2 (coco/hydro)
• Smell in grow: High – use a carbon filter if needed
• THC: Up to 28%
• CBD:
• Flavor: Cherry, lemon, sweet, sour, haze
• Effect: Euphoric, creative, uplifting – ideal for daytime use

How to grow Purple Haze Auto: A fast, foolproof guide

Get the most from your Purple Haze Auto with this streamlined grow plan—designed for speed, yield, and flavor.

Quick overview

Autoflower from FastBuds · 8-week cycle · Low difficulty · Ideal for indoor tents or sunny patios.

Safe start

Launch strong with a solid root foundation and early vigor.

• Germinate seeds in moist paper towels at 22–25 °C.
• Transplant when the taproot is ~1 cm long.
• Use airy soil with perlite for drainage.
• For faster rooting, Klonagel rooting hormone gel boosts early growth.

Directed growth

Set up for success with proper spacing, light, and gentle training.

• Use 7–11 L pots for 1–2 plants per m².
• Run 18–20 hours of LED or CFL light daily.
• Apply Leaf Coat / Spray BioBizz to strengthen leaves and prevent pests.
• Use LST early to spread the canopy and maximize light exposure.
• Keep humidity at 60–70% and temperature at 22–26 °C.

Efficient flowering

Lock in resin, color, and potency with smart late-stage care.

• Lower humidity to 40–50% to prevent mold.
• Support heavy colas with bamboo stakes or trellis net.
• Boost bud density with Bud Ignitor Advanced Nutrients at peak flowering.
• Flush with plain water 7–10 days before harvest.
• Harvest when trichomes turn milky to amber.

Frequently Asked Questions

Is Purple Haze Auto good for beginners?

Yes. It’s low-maintenance, forgiving of minor mistakes, and doesn’t require advanced techniques. Just water, feed lightly, and let it shine.

Will it always turn purple?

Yes, it’s a stabilized purple strain. Cooler nighttime temps (15–18 °C) during flowering intensify the color—especially outdoors or with LED cooling.

Can I grow it in a small space?

Absolutely. Use LST or a 7 L pot to keep it compact. It won’t stretch excessively and adapts well to confined areas.

Does it smell strong during flowering?

Yes, it has a high odor profile. Use a carbon filter like those in grow tents with built-in scrubbers to stay discreet.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Purple Haze Auto in my 1.20 x 1.20 m tent with a 600W LED. Planted three seeds in 11 L pots, used LST at week 2, and supported colas early. No topping—autos hate that. Fed lightly with organic nutrients, added Bud Ignitor at week 5, and flushed at week 7. Harvested at 8 weeks: 510 g/m² of frosty, purple-drenched buds. The high was electric—creative, happy, no jitters. Flavor? Like cherry lemonade with a haze kick. I’m running it again this season. If you want fast, potent, and beautiful, this is your strain.