Auto AK 48 by Nirvana – Fast, Resilient & High-Yielding Autoflowering Strain

Auto AK 48 by Nirvana is a resilient, fast-flowering autoflowering strain that delivers high yields and a balanced effect with minimal effort—perfect for discreet grows and beginners.

Worried your setup isn’t good enough for big yields?

Let’s be real: not every grower has the perfect tent, the ideal climate, or years of experience. You might be nervous about picking a strain that demands perfect conditions, only to end up with weak plants, mold issues, or a harvest that barely covers your costs.

And if you’ve ever lost a crop to humidity spikes or inconsistent lighting, you know that frustration. You start wondering: “Is growing even worth it if I keep failing?” That doubt can kill your motivation faster than powdery mildew on fan leaves.

Enter Auto AK 48. This isn’t some finicky diva of a plant—it’s a rugged, no-nonsense hybrid bred to thrive in real-world conditions. Thanks to its AK-48 x Ruderalis genetics, it laughs at temperature swings, resists mold like a champ, and finishes fast, so you can harvest before problems even show up. Whether you're on a balcony in Barcelona or in a closet in Berlin, this strain adapts and performs.

Why Auto AK 48 actually delivers for your grow

This strain hits the sweet spot between beginner-friendliness and pro-level results. It’s compact (staying under 1.10 m), discreet in smell, and ready in just 11–13 weeks outdoors. Indoors, you can push yields to 400 g/m² with standard HID lighting. It’s forgiving of minor mistakes—perfect if you're still learning the ropes—but rewarding enough that experienced growers come back to it again and again. If you want a reliable, high-resin plant that doesn’t demand perfection, this is your go-to.

Key features and benefits

• Flowers in 77–90 days — get harvests fast, multiple times a year.
• Reaches 0.80–1.10 m (2.62–3.61 ft) — ideal for small spaces and stealth grows.
• Produces up to 400 g/m² (1.3 oz/ft²) indoors — big yields without big plants.
• Resists mold and pests — thrives in humid or hot climates with minimal care.
• Low aroma during grow — perfect for discreet cultivation on balconies or indoors.
• THC 14–16% with balanced effects — clear-headed focus with relaxing body vibes, great for daytime.
• Fruity, earthy, floral flavor — smooth smoke with berry and hash notes that lingers.

Common doubts — clear answers

You might think this strain is too basic for serious yields. In reality, Auto AK 48 outperforms many photoperiods when grown in volume or with SOG setups.

• You think that autoflowers are weak. In reality, this one packs a punch with 14–16% THC and a frosty, resin-heavy finish.
• You think that small plants mean small harvests. In reality, dense, top-to-toe bud production delivers up to 120 g (4.23 oz) per plant outdoors.
• You think that easy means boring. In reality, the terpene profile is complex—floral, sweet, and slightly spicy—thanks to dominant myrcene, pinene, and caryophyllene.
• You think that fast means harsh smoke. In reality, it’s smooth and flavorful, like a high-end joint with a fruity aftertaste.

How to grow Auto AK 48 successfully

Auto AK 48 thrives when you keep things simple. Avoid overcomplicating your routine—this plant rewards consistency, not complexity.

1. Start with a final pot of 18–27 L to avoid transplant stress and support root development.
2. Use 18–20 hours of light daily—no need to change schedules. For a hassle-free start, Start Up Plagron speeds up rooting and reduces transplant stress.
3. Water lightly at first, increasing as the plant grows. Keep the substrate well-draining to prevent overwatering.
4. Apply balanced nutrients early, then switch to bloom-focused formulas in mid-flowering. In sustained growth, Terra Vega keeps leaves green and structure compact.
5. Avoid topping or aggressive pruning—autoflowers don’t recover well. Gentle LST is fine if done early.
6. Ensure good airflow to prevent humidity buildup, especially in the dense lower canopy.
7. Harvest when trichomes turn milky to amber for a balanced high. Flush 7–10 days before harvest for cleaner smoke.

Technical specifications

• Breeder / Brand: Nirvana Seeds
• Type: Autoflowering
• Dominance: Indica-dominant hybrid
• Genetics: AK-48 × Ruderalis
• Life cycle: 77–90 days (germination to harvest)
• Indoor yield: Up to 400 g/m² (1.3 oz/ft²)
• Outdoor yield: Up to 120 g/plant (4.23 oz/plant)
• Indoor height: 0.80–1.10 m (2.62–3.61 ft)
• Outdoor height: 0.80–1.10 m (2.62–3.61 ft)
• Difficulty: Low (beginner-friendly)
• Structure: Bushy, compact, with medium internodal spacing
• Climate: Thrives in hot, Mediterranean climates; tolerates temperature fluctuations
• Resistance: High resistance to mold, mildew, and pests
• Training: Suitable for LST and SOG; avoid topping or FIM
• Pot size: 18–27 L recommended for autos
• Light cycle: 18–20 h daily throughout life cycle
• Temperature: 22–26 °C (71.6–78.8 °F) in veg; 20–25 °C (68–77 °F) in flower
• Humidity: 50–60% in veg; 40–50% in flower
• pH: 6.0–6.5 (soil); 5.8–6.2 (coco/hydro)
• Smell in grow: Low to medium — discreet, no carbon filter needed
• THC: 14–16% (medium)
• CBD: 0.1–1% (low)
• Dominant terpenes: Myrcene, Pinene, Caryophyllene
• Flavour: Fruity, berry, earthy, sweet hash
• Effect: Balanced — focusing, euphoric, relaxing (ideal for daytime use)

Frequently Asked Questions

How long does Auto AK 48 take from seed to harvest?

It typically takes 77–90 days to go from seed to harvest, depending on environment and care. Indoors, it’s ready in about 11 weeks; outdoors, harvest in 11–13 weeks, best planted between June and September.

Is Auto AK 48 good for beginners?

Yes, it’s one of the easiest autoflowers to grow. It’s forgiving of mistakes, resistant to stress, and doesn’t require complex training or lighting schedules—perfect for first-time growers.

Does it smell strong during flowering?

No, it has a low to medium odor, making it ideal for discreet grows on balconies or in small indoor spaces. No carbon filter is usually needed.

Can I grow Auto AK 48 outdoors in a cold climate?

Yes, it handles temperature fluctuations well and can grow in cooler conditions, though it thrives best in warm, sunny environments.

What’s the best way to increase yields?

Use a Sea of Green (SOG) setup with multiple plants in 18–27 L pots. Provide strong light (HID or LED) and balanced nutrients. At the end of flowering, Terra Flores helps with density and a cleaner taste.

Personal Experience of Pevgrow’s CEO (Alan)

I was skeptical at first—another “easy” autoflower? But after seeing customers come back for their third or fourth run, I gave it a shot. Grew it on my terrace in Seville, 42°C days, barely any watering some weeks. It didn’t just survive—it thrived. The buds were dense, frosty, and smelled like old-school hash with a berry twist. I smoke it during the day when I need focus without anxiety. It’s not the strongest thing out there, but it’s reliable as hell. My only tip? Don’t overfeed it. I pushed nutrients once and burned the tips—lesson learned. Stick to moderate feeding, and you’ll get consistent, high-quality results every time.