Purple Punch Auto by Barneys Farm – Indica-Dominant Autoflower with 22% THC & Sweet Fruity Flavor

Purple Punch Auto by Barneys Farm is an indica-dominant autoflowering powerhouse that delivers 22% THC, sweet baked apple and clove flavors, and deeply relaxing effects—all in a compact 65–70 day cycle. This is your go-to strain for stress relief, flavor, and fast, high-yielding harvests.

Are you still struggling with slow, low-yielding grows?

Most autoflowers leave you waiting too long or give you airy, flavorless buds. You invest time, light, and nutrients, only to end up with mediocre results—nothing that hits hard or tastes special. It’s frustrating when your grow doesn’t match the hype.

What if you could harvest top-shelf nugs in under 10 weeks?

Imagine skipping the long waits and still getting dense, frosty colas that smell like a bakery and hit with euphoric calm. No more leafy buds or weak effects. No more guessing when to harvest. Just consistent, high-THC results with minimal effort—indoors or out.

Purple Punch Auto delivers exactly that

Crossed from Purple Punch and BF Auto Critical, this Barneys Farm gem packs 22% THC into compact plants that grow to 0.80–1.00 m (2.62–3.28 ft) indoors. You’ll harvest up to 550 g/m² (1.94 oz/ft²) in just 65–70 days, with buds bursting in sweet baked apple and clove terps. Outdoor plants yield 180–250 g (6.35–8.82 oz) per plant and develop stunning purple hues under cool nights.

What you get with Purple Punch Auto

• 22% THC potency – delivers strong, relaxing, euphoric effects
• Sweet baked apple & clove flavor – mouthwatering terpene profile from day one
• Indoor yields up to 550 g/m² (1.94 oz/ft²) in just 65–70 days
• Compact 0.80–1.00 m (2.62–3.28 ft) height – perfect for stealth grows
• Outdoor resilience – thrives in temperate to warm climates, reaches 0.90–1.20 m (2.95–3.94 ft)
• Easy to grow – low maintenance, forgiving of beginner mistakes
• Autoflowering genetics – no light cycle changes needed, harvests fast

How your grow routine changes from now on

Forget complex veg phases and light switches. With Purple Punch Auto, you plant, feed, and harvest in under 10 weeks. No topping, no SCROG, no stress. Just set your lights to 18/6, keep the climate stable, and watch it explode into a trichome-covered monster. The dense colas practically support themselves, and the smell? Like fresh donuts from your favorite bakery. You’ll go from seed to smoke faster than ever—without sacrificing quality.

Advantages and benefits you’ll notice from day one

• Harvest in 65–70 days—no waiting months for results
• Massive 550 g/m² indoor yields—more bud per square meter
• Sweet, complex flavor—no bland or harsh smoke
• Deeply relaxing effects—perfect for unwinding at night
• Compact size—ideal for small tents or balconies
• Resilient to pests and mold—fewer grow problems
• Minimal training needed—grow it and forget it

Grow guide: How to get the best results

Quick overview: Autoflowering · Barneys Farm · 65–70 day cycle · Low difficulty · Ideal for indoor tents or outdoor patios.

Safe start: Germinate at 21–32 °C (70–90 °F) using the paper towel method. Transplant when the taproot is 1–2 cm (0.4–0.8 in) long. For faster rooting, Rhizotonic XP boosts early development and reduces shock.

Stable seedling: Keep humidity at 60–70%, temperature at 22–26 °C (71.6–78.8 °F). Use a light, airy soil mix. Water lightly—just enough to keep the medium moist. Avoid nutrients for the first week.

Directed growth: Maintain 18–20 hours of light. Use 18–27 L pots from the start. Feed gently—autos hate nutrient burn. Hesi Boost during early bloom increases trichome production and bud density.

Flowering by stages: In mid-flower, reduce humidity to 40–50% to prevent mold. Support heavy colas with soft ties. At peak flowering, add Bloombastic for explosive resin and aroma.

Harvest, drying and curing: Harvest when 70% of trichomes are milky, 30% amber for balanced relaxation. Flush 7–10 days before harvest. Dry at 18–22 °C (64.4–71.6 °F) and 50–60% RH for 10–14 days. Cure in jars for 2–4 weeks, burping daily.

Technical specifications

• Breeder / Brand: Barneys Farm
• Type: Autoflowering
• Dominance: Indica-dominant (80% Indica / 20% Sativa)
• Genetics: Purple Punch × BF Auto Critical
• THC: 22%
• CBD: 1%
• Flowering Time: 65–70 days from sprout
• Indoor Height: 0.80–1.00 m (2.62–3.28 ft)
• Outdoor Height: 0.90–1.20 m (2.95–3.94 ft)
• Indoor Yield: 450–550 g/m² (1.59–1.94 oz/ft²)
• Outdoor Yield: 180–250 g/plant (6.35–8.82 oz/plant)
• Difficulty: Low
• Structure: Compact, dense branching, minimal stretch
• Climate: Temperate to warm; tolerates mild fluctuations
• Resistance: Moderate resistance to pests and mold
• Training: Suitable for LST; avoid topping or FIM
• Pot Size: 18–27 L final pot from seed
• Light Cycle: 18–20 h light throughout
• Temperature: 22–26 °C (71.6–78.8 °F) veg; 20–25 °C (68–77 °F) 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: Medium to high—carbon filter recommended
• Aromatic profile: Myrcene, caryophyllene, limonene
• Flavour: Baked apple pie, clove, sweet berry
• Effect: Relaxing, euphoric, stress-relieving—best for evening use

Frequently Asked Questions

Is Purple Punch Auto good for beginners?

Yes. Its autoflowering nature, low maintenance, and resistance to common issues make it perfect for first-time growers.

How much yield can I expect outdoors?

Under optimal conditions, each plant produces 180–250 g (6.35–8.82 oz). Use quality soil and full sun for best results.

Does it turn purple?

Yes. Cooler nighttime temperatures during flowering enhance purple pigmentation in the leaves and calyxes.

Can I grow it in a small space?

Absolutely. At 0.80–1.00 m (2.62–3.28 ft), it fits perfectly in 60x60 cm (23.6x23.6 in) tents or discreet outdoor spots.

What nutrients work best with Purple Punch Auto?

Use a mild feeding schedule. Start with Top Veg in early growth and switch to a bloom booster like Bloombastic at flowering onset.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Purple Punch Auto in my 1.20x1.20 m (3.94x3.94 ft) tent under a 600W LED. Planted three seeds in 20L pots, no topping—just light LST to open up the canopy. By week 4, the smell was unreal—like apple pie fresh from the oven. At day 68, trichomes were milky with a hint of amber. I flushed for 10 days, dried slowly, and cured for three weeks. The buds were dense, purple-tinged, and covered in resin. The high? Instant relaxation, zero anxiety, perfect for crashing after a long day. I’ve grown dozens of autos, but this one stands out for flavor, ease, and consistency. I’ll definitely be growing it again—maybe even outdoors next summer.