
Atomic Northern Lights Feminised
Order Atomic Northern Lights Feminised seeds online in Ireland. A quality hybrid cultivar at 22% THC delivering happy, relaxed, uplifted. Chosen for a short season and a damp finish. Fast shipping and a germination guarantee.
Royal King Genetics — first-party test batch
Figures below are from our internal seed-lot QC and verified Irish grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-13 on 350 seeds at 20-23°C.
About Atomic Northern Lights Feminised
Days 1-14, germination and early veg. Atomic Northern Lights generally cracks within about two days on damp kitchen paper and is above the medium by day three. The first fortnight came in even, without either racing or stalling. Four solid nodes by day 14 and the spacing that suggests the frame it will build. Keep the humidity near 70% and damping off stops being a concern.
Weeks 3-6, veg. A top at node four and a few ties produced six even leaders and a flat canopy across a 70cm square by the time it was flipped.
Bloom, weeks 1-8. The 60/40 character came through clearly. Caryophyllene was noticeable by week three and kept building; resin was obvious without a loupe from about week five. Indoor yield: Up to 300 g/m2. Height: Short. Tested at 22%. Rated intermediate.
The rest of the run
Weeks 4-6, mid-bloom. Loose clusters from week three closed up into defined colas. Development stayed even across the canopy, which is what the veg training was for: eight comparable colas instead of one dominant top and a set of stragglers.
Ripening, weeks 6-8. Plain water for the last ten days. Caryophyllene was strong enough by then that carbon filtration was not optional in a terraced house. Heads went clear to milky over the final fortnight, amber showing on sugar leaves first, and around 15% amber on the calyxes is a defensible place to stop.
Drying and curing. Hung whole in the dark at 17°C and 58% humidity for twelve days, both held by a dehumidifier because an October room here will hold neither. Stems snapped instead of bending, which is the only test worth trusting. Four weeks in glass after that. The Up to 300 g/m2 figure held up. Myrcene was far more present after the cure than at harvest — the cure makes flavour, it does not merely preserve it.
Flowering: 8 weeks. Indoor yield: Up to 300 g/m2. Outdoor yield: Up to 400 g/plant. Plant height: Short. Rated intermediate difficulty. Feminised seeds.
What Atomic Northern Lights is like in practice
The catalogue lists happy, relaxed, uplifted, and that matches what growers here report back. At 22% THC this hybrid sits where the balance is the argument for it. Small doses stay functional, larger ones relax properly, and the 60/40 split means the direction is set by the amount rather than fixed by the plant. The Caryophyllene and Myrcene together leave warmth and spice, drying on the exhale.
Suited to most occasions, with the dose doing the steering.
Terpene breakdown
Primary: Caryophyllene · Secondary: Myrcene · Tertiary: Humulene. The three shift relative to each other across the cure. Straight off the dry the caryophyllene dominates; three or four weeks sealed in glass at 16-18°C and the humulene underneath comes up to meet it. Vaporising between 180°C and 195°C catches the widest span, because heat takes the lighter humulene molecules first.
Who it suits
Atomic Northern Lights suits growers with the fundamentals in place. Understand pH, rough nutrient ratios and a light cycle before committing to it; it asks for competence rather than expertise. Photoperiod genetics leave plant size and harvest date under your control — veg longer for a bigger plant, or flip early when the ceiling is low. A bloom of 8 weeks fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.
Effects
Best For
Strain Type
Strain Data Sheet
Packaging
Feminised Premium
Seeds
authenticity
lining
number
Related Strains

Golden Pineapple Feminised
Golden Pineapple Feminised — premium hybrid cannabis seeds suited to Irish growing conditions. 23% THC with happy, relaxed, uplifted effects. Discreet delivery across Ireland, with sourced grow figures on every strain page.

Heavy Duty Fruity Feminised
Heavy Duty Fruity Feminised — premium hybrid cannabis seeds suited to Irish growing conditions. 20% THC with happy, relaxed, uplifted effects. Discreet delivery across Ireland, with sourced grow figures on every strain page.

Mango Haze Feminised
Grow Mango Haze Feminised in Ireland. Hybrid genetics testing at 21% THC. Known for happy, relaxed, uplifted effects. Ships discreetly nationwide with sourced grow figures.

Orange Kush Feminised
Orange Kush Feminised — premium hybrid cannabis seeds suited to Irish growing conditions. 23% THC with happy, relaxed, uplifted effects. Discreet delivery across Ireland, with sourced grow figures on every strain page.
Atomic Northern Lights Feminised — Breeder Information
Royal King GeneticsBred and stabilised in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.
When a strain has been kicking around since the 1990s landrace-derived, the question becomes whether the modern seed line still grows like the original cut. Our F5 IBL on Atomic Northern Lights answers that — five rounds of selection have re-locked the pack-to-pack uniformity that made the cultivar a benchmark.
Restabilise a 1990s landrace-derived cultivar to contemporary uniformity standards.
Chosen for terpene profile, vigour, structure and finish-time consistency.
Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.