Auto Northern Lights by Pyramid Seeds – 20-22% THC Indica-Dominant Auto with Sweet Candy Aroma · Fast 70-Day Harvest & High Yield

Auto Northern Lights by Pyramid Seeds is a high-THC, indica-dominant autoflowering strain that delivers powerful relaxation, a sweet candy aroma, and impressive yields in just 70 days — making it a top-tier choice for fast, high-quality harvests.

Struggling to find an autoflower that actually delivers on flavor, potency, and yield? Tired of small, weak plants that barely make it past 50 cm (19.69 in)? What if you could grow a plant that looks and tastes like a premium feminized strain — but with the simplicity of an auto? That’s exactly what Auto Northern Lights solves. This isn’t your average ruderalis cross — it’s a meticulously bred powerhouse that captures the legendary essence of Northern Lights, now with automatic flowering for stress-free growing.

Why Auto Northern Lights Feels Like the Real Deal

Most autoflowers compromise on flavor and effect. Not this one. Thanks to its dominant Northern Lights genetics, Auto Northern Lights develops dense, lime-green buds coated in resin, with a rich, sweet candy aroma and a deeply calming effect. It’s the rare auto that doesn’t just mimic — it matches — its photoperiod counterpart. Whether you're growing indoors under LED or outdoors in a sunny spot, this strain stands tall — literally and figuratively — among autoflowering legends.

• Delivers 20–22% THC for strong, narcotic relaxation
• Flowers in just 70 days from seed to harvest
• Reaches up to 1.50 m (4.92 ft) indoors, one of the tallest autos available
• Produces up to 400 g/m² (11.34 oz/ft²) under 720W LED
• Thrives both indoors and outdoors, with yields up to 200 g (7.05 oz) per plant
• Sweet, fruity candy flavor with earthy undertones
• Perfect for evening use — melts stress and soothes the body

If You’re Just Starting Out: Why This Strain Builds Confidence

Beginners often get discouraged by finicky strains that demand perfect conditions. Auto Northern Lights is forgiving, fast, and rewarding — the kind of plant that shows results without needing a PhD in horticulture. It doesn’t require complex training or light cycles, and it’s resistant to common stressors like temperature swings and minor nutrient imbalances.

• Easy to grow — no need to switch light schedules
• Stable genetics mean consistent results, grow after grow
• Forgiving of minor mistakes in watering or feeding
• Compact early growth, then rapid vertical stretch
• Ready to harvest in under 10 weeks — instant gratification

If You Already Have Experience: Why It Earns a Spot in Your Grow Room

For advanced growers, Auto Northern Lights is a stealth weapon. It’s a high-yielding auto that doesn’t sacrifice quality — perfect for quick turnarounds, SCROG setups, or as a companion to photoperiod plants. Its tall structure and heavy bud production respond well to gentle LST, and it finishes clean with minimal flushing needed.

• Reaches up to 1.50 m (4.92 ft) — ideal for maximizing vertical space
• Performs exceptionally under 720W LED, hitting 700–750 g/1.5m² (46.75–50.02 oz/1.61 ft²)
• Compatible with LST and low-stress techniques for canopy control
• Minimal odor during grow — discreet for home setups
• Clean finish with proper flushing — enhances flavor and smoothness

Advantages and Benefits for Any Level

• Fast 70-day cycle — perfect for back-to-back grows
• High THC and strong body effect — ideal for relaxation
• Sweet, nostalgic candy flavor — a throwback to classic genetics
• Large yields without massive energy input
• Resilient to mold and pests — thanks to its Northern Lights heritage
• Works in soil, coco, or hydro — versatile growing options
• Low maintenance — 18–20 hours of light, no pruning needed

Typical Mistakes This Product Helps You Avoid

Even experienced growers can misstep with autos. Auto Northern Lights’ stable genetics and predictable growth pattern help you sidestep common pitfalls.

• Overcomplicating light cycles: No need to switch — 18–20h works perfectly.
• Underpotting: Start in final pot (18–27 L) to avoid transplant shock.
• Overpruning: Avoid topping — use LST instead for better results.
• Overfeeding: This strain prefers moderate nutrients — start low, go slow.
• Harvesting too early: Wait for milky-to-amber trichomes for full relaxation.

Technical specifications

• Breeder / Brand: Pyramid Seeds
• Type: Autoflowering
• Sex: Feminized
• Dominance: 90% Indica / 10% Sativa
• Genetics: Northern Lights × Ruderalis
• Flowering time: 70 days (indoor), 63 days with LED
• Height (Indoor): 60–150 cm (23.62–59.06 in)
• Height (Outdoor): +100 cm (3.28 ft)
• Yield (Indoor): Up to 400 g/m² (11.34 oz/ft²)
• Yield (Outdoor): 70–200 g/plant (2.47–7.05 oz/plant)
• THC: 20–22%
• CBD: Low
• Difficulty: Moderate
• Climate: Temperate, Mediterranean
• Resistance: Good resistance to mold and pests
• Training: Suitable for LST, not recommended for topping
• Pot size: 18–27 L final pot recommended
• Light cycle: 18–20 h light throughout
• Aroma: Candy, sweet, fruity
• Flavour: Sweet, earthy, with candy-like notes
• Effect: Powerful relaxation, serenity, body high

How to grow Auto Northern Lights: expert tips for maximum yield

Auto Northern Lights thrives with minimal intervention, but a few smart choices can boost your results.

Quick overview: Autoflowering · Pyramid Seeds · 70-day cycle · moderate difficulty · ideal for indoor and outdoor grows in temperate climates.

Safe start: Germinate in a moist paper towel or starter cube. Transplant carefully when the taproot is ~1 cm (0.39 in) long. For a stronger start, BioTabs Tablets provide slow-release nutrients and support root health.

Directed growth: Use a well-draining soil or coco mix. Keep pH between 6.0–6.5 (soil) or 5.8–6.2 (coco). Water when the top inch feels dry. Rootmax Bio-stimulator of Roots Green Hope enhances root development and stress resistance during early growth.

Efficient flowering: Maintain RH at 40–50% in mid to late flowering. Support heavy colas with stakes if needed. Boost resin and density with B'CUZZ ROOT STIMULATOR during peak bloom.

Harvest and refinement: Harvest when trichomes turn milky to amber for full sedative effect. Flush 7–10 days before harvest. Dry at 18–22 °C (64.4–71.6 °F) and 50–60% RH. Cure in glass jars for 2–4 weeks to enhance flavor and smoothness.

Frequently Asked Questions

How long does Auto Northern Lights take to harvest?

It flowers in about 70 days from seed. With high-powered LED lighting, it can finish in as little as 63 days.

Is Auto Northern Lights good for beginners?

Yes, it’s beginner-friendly due to its stable genetics and forgiving nature, though it does best with moderate care and proper pot size.

What kind of yields can I expect outdoors?

Outdoors, expect 70–200 g (2.47–7.05 oz) per plant, depending on sunlight, climate, and care.

Does it smell strong during flowering?

It has a noticeable sweet, candy-like aroma, but not overpowering. In confined spaces, consider using a carbon filter.

Can I top or prune Auto Northern Lights?

Not recommended. Autoflowers have a fixed life cycle — aggressive pruning can reduce yields. Use low-stress training (LST) instead.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown a lot of autos, and most feel like compromises. Auto Northern Lights? It’s the real deal. I first tried it in a small indoor tent with a 600W LED, and I was shocked — it stretched over 1.40 m (4.59 ft) and filled the space with dense, sticky buds. The smell during drying was incredible — sweet, earthy, nostalgic. I shared it with friends who thought it was a photoperiod. The high is deep and calming, perfect after a long day. For beginners, I’d say: don’t overthink it — just give it light, water, and space to grow. For advanced growers, it’s a stealthy high-yield machine. I now keep it in rotation year-round, especially for quick fills between photoperiod cycles. One tip: go easy on the nutrients — it doesn’t need much to shine.