Purple Punch Auto Seeds by Seed Stockers – Indica-Dominant Powerhouse with 24% THC & Massive Yields

Purple Punch Auto seeds by Seed Stockers deliver massive, resin-drenched buds in just 11 weeks, combining knockout potency with stunning visual appeal and a sweet, dessert-like flavor that hits all the right notes.

Are You Still Wasting Time on Weak, Bland or Unreliable Autoflowers?

Let’s be real: not all autoflowering seeds are created equal. Some fizzle out with weak effects, others barely turn a shade of green, and too many just don’t deliver on the promise of big yields and bold flavor. You end up with average buds, wasted space, and the same old high.

What’s the Real Cost of Settling for Mediocre Genetics?

Choosing underperforming seeds doesn’t just mean a boring smoke—it means lost time, wasted nutrients, and missed opportunities for that next-level experience. Imagine waiting 11 weeks only to harvest airy, flavorless buds with barely any trichomes. Or worse—plants that stretch too much, mold easily, or fail to show those vibrant colors you were hoping for. That frustration? It’s avoidable.

Meet the Autoflower That Delivers on Every Front: Purple Punch Auto

Purple Punch Auto isn’t just another strain—it’s a game-changer. Bred from legendary Grandaddy Purple and Larry OG, this indica-dominant autoflower packs up to 24% THC, finishes in just 11 weeks, and produces massive, dense buds coated in crystal trichomes. Whether you're growing indoors or outdoors, this strain rewards you with explosive flavor, knockout effects, and a visual spectacle of deep purple and blue hues that’ll make your grow room look like a candy store.

Technical specifications

• Breeder / Brand: Seed Stockers
• Type: Autoflowering
• Dominance: Indica-dominant hybrid
• Genetics: Grandaddy Purple × Larry OG
• Life cycle: 11 weeks (germination to harvest)
• Yield (indoor): Up to 600 g/m² (2.12 oz/ft²)
• Yield (outdoor): Up to 200 g/plant (7.05 oz/plant)
• Height (indoor): 100–150 cm (3.28–4.92 ft)
• Height (outdoor): 120–160 cm (3.94–5.25 ft)
• Difficulty: Intermediate
• Structure and vigour: Compact, bushy with dense side branching and a strong main cola
• Resistance: Good resistance to mold and pests
• Training: Suitable for LST; avoid topping or aggressive pruning
• Recommended pot: 18–27 L final pot
• Light: 20/4 or 18/6 throughout the cycle
• Temperature: 22–26 °C (veg), 20–25 °C (flowering)
• Humidity: 60–70% (seedling), 50–60% (veg), 40–50% (flowering)
• THC: 20–26%
• Flavour: Sweet grape candy, blueberry muffin, dark fruit
• Effect: Relaxing, euphoric, full-body calm with a clear head

Why This Strain Outperforms Basic Autoflowers

When you choose Purple Punch Auto, you're not just growing a plant—you're investing in consistency, power, and beauty. This isn’t a generic cross; it’s a precision-bred powerhouse designed for growers who want more than just green.

• Massive resin production means more trichomes, more potency, and a frostier look than most autos can dream of.
• Stable purple pigmentation develops early and deepens under cooler nights, giving you eye-catching buds without genetic guesswork.
• Indoor/Outdoor versatility lets you grow in tight spaces or open gardens with confidence—this strain adapts without sacrificing quality.
• Fast 11-week turnaround means you can run multiple cycles a year, maximizing your harvests without long waits.
• High THC and rich terpene profile deliver a balanced high—euphoric at first, then deeply relaxing—perfect for unwinding or enhancing a social vibe.

Real benefits you’ll actually notice

This isn’t just about numbers on a spec sheet. It’s about what you feel, taste, and see when it matters most.

You’ll notice the difference the moment you open your jar: a wave of sweet, candy-like aroma with hints of blueberry and earth. When you light up, the smoke is smooth, flavorful, and potent—hitting fast with a smile-inducing euphoria before melting into full-body relaxation. No couch lock, no anxiety—just pure, clean chill.

And visually? Your buds will be a showstopper. Deep purple calyxes, bright orange pistils, and a thick coat of white trichomes make this strain as impressive to look at as it is to smoke. Whether you're sharing with friends or just treating yourself, Purple Punch Auto makes every session feel special.

Step-by-step growing guide

1. Germinate seeds in a moist environment at 22–25 °C with high humidity.
2. Transplant carefully once the taproot is 1–2 cm long into a 3–5 L pot.
3. Move to final 18–27 L pot by week 3 to support vigorous growth.
4. Provide 18–20 hours of light daily and maintain stable temperatures.
5. Use well-aerated soil or coco with organic nutrients for best flavor.
6. Apply light LST early to shape the plant and improve light penetration.
7. Monitor humidity closely—keep it below 50% in flowering to prevent mold.
8. Flush nutrients 7–10 days before harvest for a smoother smoke.
9. Harvest when trichomes turn milky to amber for maximum potency and effect.

Frequently Asked Questions

How long does Purple Punch Auto take to grow?

From seed to harvest, this strain takes approximately 11 weeks indoors. Outdoors, it may take up to 13 weeks depending on climate.

Does Purple Punch Auto really turn purple?

Yes! Thanks to its Grandaddy Purple genetics, this strain develops vibrant purple and blue hues, especially when nighttime temperatures drop during flowering.

Is this strain good for beginners?

While it's labeled intermediate, Purple Punch Auto is forgiving and stable. Just avoid aggressive pruning and maintain proper airflow to prevent moisture buildup.

Can I grow Purple Punch Auto outdoors in a cold climate?

Absolutely. It has good resistance to cooler temperatures and mold, making it suitable for temperate and Mediterranean climates. Just ensure it gets plenty of sunlight.

What nutrients work best with this strain?

It thrives with balanced organic nutrients. For a complete feeding solution, check out the Autoflower Seeds category for tailored kits.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Purple Punch Auto in my personal 1.20 x 1.20 m (3.94 x 3.94 ft) tent under a 600W LED. I started with three seeds in 20L pots, using a soil-coco mix and a light organic feed. By week 4, the purple hues were already showing—deep violet on the lower fan leaves and calyxes. I did minimal LST, just to open up the canopy, and avoided any topping since it’s an auto.

The smell kicked in hard by week 6—sweet grape candy with a skunky undertone that made me crave dessert. I kept RH at 45% in late flower and used a small oscillating fan to boost airflow. At harvest, I had three plants averaging 180 g each, with one monster yielding 210 g. The buds were rock-hard, frosty as hell, and smelled like a bakery mixed with a forest.

After a two-week cure, the high was exactly what I wanted: uplifting at first, then deeply relaxing without fogging my brain. Perfect for evening wind-downs or creative sessions. If you want a strain that delivers beauty, flavor, and power without drama, this is it. For root support, I always use Barney's Farm Seeds – Premium Genetics for Every Grower to ensure strong early development.