Auto Northern Lights

Auto Northern Lights brings the legendary indica classic into an autoflowering format — with 20–22% THC, a deep body effect and the characteristic earthy aroma of the original. Finished in 70 days from germination, up to 750 g/1.5 m² under LED, no light schedule needed. Buy Auto Northern Lights Pyramid Seeds direct from the breeder. (Also searched as "northern lights auto", "northern lights autoflower", "northern lights automatic" or "northern light auto".)

Key specifications

Genetics and origin

Auto Northern Lights is based on the legendary Northern Lights — a 90% indica phenotype from an Afghani × Thai selection that has been one of the most famous strains in the world since the 1980s. For the autoflowering variant, the genetics were brought into an autoflower format without changing the characteristic indica profile: same effect, same aroma, no light schedule.

Northern Lights Automatic THC content

With 20–22% THC, Auto Northern Lights is one of the most potent autoflowering strains on the market. Most autoflowering strains sit at 15–18% THC — Auto Northern Lights clearly exceeds that average. The high Northern Lights Automatic THC content explains the intense, long-lasting indica effect that makes the strain so popular.

Northern Lights Automatic effects

The Northern Lights Automatic effect is typically body-focused and deeply sedating — a classic indica experience:

• Deep muscle relaxation — a narcotic body effect, tension releases quickly
• Stress relief — ideal in the evening after a long day
• Sleep support — a sedating effect at higher doses
• Calm serenity — a relaxed mood lift without cerebral over-activation

The effect sets in quickly and is pronouncedly physical — ideal for the evening and for recovery.

Aroma and flavour

The aroma profile of Auto Northern Lights is the unmistakable NL profile: earthy, sweet, with clear pine-resin notes and a slightly spicy finish. The smell during flowering stays discreet — one of the hallmarks of Northern Lights genetics and a clear advantage for indoor projects and balcony growing.

Auto Northern Lights terpene profile

The terpene profile reflects the classic indica origin: earthy, calming, warm. The three dominant terpenes:

Together they form a classic indica terpene profile: calming, warm and earthy — ideal for anyone who values Northern Lights not just for the effect but for the authentic aroma.

Northern Lights Automatic flowering time & harvest

The flowering time of Auto Northern Lights is 70 days from germination — as little as 63 days under LED. No light switch needed, no separate vegetation period.

Outdoor harvest (northern hemisphere):

• First sowing April/May → harvest July/August
• Second sowing June/July → harvest September/October

This makes two harvests per season easily possible in outdoor growing. These Northern Lights auto seeds are feminized and stabilised for a uniform, fast crop.

Growing — guide & tips

Indoor growing

Indoors, Auto Northern Lights flowers in 70 days from germination (LED: 63 days) under a constant 18/6 light schedule. Yield is 400 g/m² under standard conditions; experienced growers reach up to 700–750 g on 1.5 m² with a 720 W LED. The 60–150 cm height is variable — LST training is recommended for more compact setups.

Outdoor growing

Outdoors, Auto Northern Lights delivers 70–200 g per plant from 100 cm in height. The short flowering time is a clear advantage — the plants are finished before the colder autumn weather. No photoperiod timing, a discreet smell, a compact growth habit — ideal for balcony and discreet outdoor growing.

Auto Northern Lights vs Northern Lights Fem: a direct comparison

When to choose Auto, when Fem?

Choose Auto Northern Lights if: you want several harvests per year, grow outdoors without timing stress, are a beginner, or prefer a more compact setup with no light management.

Choose Northern Lights Fem if: you want maximum outdoor yield (up to 1.5 kg/plant), are an experienced grower and prefer full control over the vegetation period.

Northern Lights family — all variants

Explore the complete Northern Lights family:

• Northern Lights Fem — original classic genetics, 20–22% THC, up to 1.5 kg outdoor
• Northern Lights CBD — 15–18% CBD, 7–12% THC
• Auto Northern Lights CBD — autoflowering CBD version
• Northern Lights × Runtz — modern, fruity, up to 27% THC

Pyramid Seeds — over 20 years of experience in cannabis breeding. Direct shipping from Barcelona, discreet and fast worldwide.