How to Grow Northern Lights Regular
Northern Lights Regular is one of the most legendary indicas ever bred, prized for its dense, frosty buds, easy growth and deeply relaxing effect. It carries a medium 18–22% THC, a sweet, woody flavour and a relaxed, night-time, happy character, on a sturdy, productive plant grown from classic regular seeds.
Built from Afghani crossed with Thai, this is a 75% indica, 25% sativa regular strain with pure old-school genetics. The result is a compact, resinous plant that finishes fast and reliably, a true cornerstone variety that has shaped countless modern hybrids and still earns its place in any garden.
Recommended Strains
Northern Lights Regular
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THC | 18% - 22% (Medium) |
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Type | Regular |
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Yield | High |
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Phenotype | 75% Indica / 25% Sativa |
Northern Lights Mazar Auto
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THC | 15% - 22% (Medium) |
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Type | Autoflowering |
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Yield | Medium |
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Phenotype | 75% Indica / 25% Sativa |
Because it is hardy, forgiving and quick to finish, Northern Lights Regular is a rewarding grow. You can see the full genetics and buy Northern Lights Regular seeds on the strain page, a classic choice if you enjoy working with regular seeds; if you would rather skip sexing, the same strain is available as feminized Northern Lights.
Strain Profile at a Glance
| THC | 18–22% (medium) |
|---|---|
| Lineage | Afghani x Thai |
| Type | Regular |
| Genetics | 75% Indica / 25% Sativa |
| Climate | Temperate |
| Flowering time | 8–10 weeks |
| Harvest | October |
| Height | 4.92 ft / 1.5 m |
| Yield | Generous |
| Yield indoor | 1.47–1.8 oz/ft² (450–550 g/m²) |
| Yield outdoor | 12.35–15.87 oz/plant (350–450 g/plant) |
| Grow difficulty | Moderate (regular seeds) |
| Flavors | Sweet, Woody |
| Effects | Relaxed, Night-time, Happy |
Promos & Deals
A True Old-School Classic
Few strains carry the pedigree of Northern Lights. Built from a pure Afghani indica crossed with a Thai sativa, it became the benchmark for dense, fast-finishing, resin-heavy indicas and a parent to a huge share of the modern catalogue. Growing it in regular form is a way to work with that heritage at its source.
For a grower, the appeal is reliability. Northern Lights is famously easy to grow, resistant to the usual stumbles and consistent from plant to plant, so it rewards both first-time and experienced growers. As a classic indica, it stays compact and productive without asking for much fuss.
Climate and Where to Grow It
Northern Lights is well suited to a temperate climate and genuinely shines where other strains struggle, thanks to its hardy Afghani roots. It performs both outdoors in a shorter season and in a controlled indoor tent, staying manageable at around 1.5 m with just a little Thai-driven stretch early in bloom.
Outdoors it finishes around October, with a single plant bringing in a generous 350–450 g in a good spot. Indoors it produces a strong 450–550 g/m². Keep humidity in check as the dense, chunky buds fill in, since tight indica flowers in a cool, damp room are worth protecting from bud rot in the final weeks.
Indoors, aim for daytime temperatures around 68–78°F (20–26°C) and keep steady airflow through the canopy. Its compact, bushy structure makes it a strong fit for height-limited tents, and a cool finish late in flower can deepen the colours of its frosty buds.
Working with Regular Seeds
Northern Lights comes here as regular seeds, which means each plant can grow into either a male or a female. That is different from feminized seeds, so part of the grow is identifying the sex early in flowering and removing the males if your goal is a harvest of smokable, seedless buds.
For most growers that means watching the pre-flowers closely once you flip the lights, then culling the males before they release pollen. For breeders, though, regular seeds are a real advantage: keeping healthy males lets you preserve and work with this foundational Afghani-Thai line, which is exactly why regular Northern Lights is so valued.
Flowering and Feeding
As a photoperiod plant, Northern Lights flowers on a light change rather than on age. Grow it under a long day (around 18 hours of light) through the vegetative stage, then switch to a 12/12 cycle to trigger flowering. It is a famously fast, reliable finisher, wrapping up bloom in about 8–10 weeks.
It is a sturdy, productive indica, so feed it steadily but without overdoing it. Start low, build up as the plant asks for more, and taper off for a plain-water flush in the final week or two so the sweet, woody flavour comes through clean. The EC guide below is a solid starting point.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4–0.6 | Very light feed, focus on healthy root growth |
| Vegetative growth | 0.8–1.2 | Build the frame, raise nitrogen gradually |
| Early flower | 1.2–1.4 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.4–1.6 | Peak bloom feed while the dense buds swell |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Harvest, Drying and Curing
Harvest when most trichomes have turned milky-cloudy with a few amber heads, which gives the fullest expression of this strain’s heavy, relaxing character. Run a short plain-water flush in the last week or two before you cut, which keeps the smoke smooth and lets the sweet, woody flavour shine.
Dry whole plants or branches in a dark room at around 60°F (15–18°C) and 55–60% humidity for 7–14 days, until the thin stems snap rather than bend. Then cure the trimmed buds in sealed jars, burping them daily for the first week and letting them settle for three to four weeks, which deepens the aroma and smooths the smoke.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Northern Lights is a frosty, resin-rich indica, so the trim is excellent for dry sift, bubble hash or rosin, giving you a bonus run of sweet, woody concentrate from material most growers would otherwise throw away.
Flavor and Terpenes
Northern Lights has a sweet, woody flavour with an earthy, resinous backbone, the classic old-school indica taste its Afghani side is famous for. It is a smooth, grounded profile rather than a loud or fruity one, and it carries beautifully through a careful cure.
It carries a broad, layered terpene stack, and the ones that shape the flavour stand out clearly. Myrcene and linalool carry the sweetness; humulene and borneol add the woody, earthy depth; and pinene with caryophyllene bring a fresh, gently peppery lift. A supporting cast of phellandrene, eucalyptol, farnesene, terpinolene and valencene fills in the aromatic corners.
Effects and Best Use
With its heavily indica genetics, Northern Lights is reported as relaxed, happy and firmly night-time, a deeply soothing body character that helps you unwind. It leans squarely toward evening use, making it a classic choice for settling in and letting the day go at the end of the night.
At a medium 18–22% THC it is potent but approachable, which suits both newer users and anyone who wants a genuinely relaxing effect without an overwhelming ceiling. That soothing character, the easy grow, the fast finish and the sweet, woody flavour are exactly why Northern Lights remains a timeless favourite.
Common Problems and Pro Tips
The first thing to plan for with Northern Lights Regular is the regular seeds themselves: because plants can be male or female, your main job is to check pre-flowers at the start of bloom and pull the males early, before any pollen is released, unless you are deliberately breeding. Isolating a chosen male away from your flowering females is the safest way to keep a seedless crop clean while still preserving the line.
Its dense, chunky indica buds are the other thing to watch. Those tight flowers can trap moisture, so bud rot is the most common problem in a cool, humid late flower. Keep humidity down through the second half of bloom, run steady airflow, and a light defoliation of the inner canopy helps air move around the thickest colas. The small Thai-driven stretch early in bloom can also add some height, so be ready to support the heavier branches.
As a pro tip, lean on how fast and forgiving this strain is: a slightly shorter veg keeps it compact for tight tents, while a longer veg builds a bigger frame and harvest, so you can tune size to your space before the flip. Keep feeding moderate rather than heavy, since Northern Lights does not need a lot to perform, and a clean plain-water flush in the final week or two is what lets its sweet, woody flavour come through at its best.
FAQ
Are Northern Lights Regular seeds feminized?
No. Northern Lights Regular comes as regular seeds, so each plant can grow male or female. If you want a harvest of seedless buds, identify the sex early in flowering and remove the males before they pollinate. If you plan to breed, those males let you preserve this classic Afghani-Thai line.
Is Northern Lights indica or sativa?
Northern Lights is strongly indica-dominant, at roughly 75% indica and 25% sativa, which it takes from its Afghani and Thai parents. That shows in a compact, sturdy plant and a relaxed, night-time body effect, with just a little Thai sativa influence to keep the heavy character from feeling flat.
How long does Northern Lights take to flower?
About 8–10 weeks once you switch to a 12/12 light cycle, with outdoor plants finishing around October. It is a photoperiod strain, so it blooms on the light change rather than on age, and it is known as a famously fast, reliable finisher for a classic indica of this calibre.
What yield does Northern Lights Regular give?
It is a productive classic, giving around 450–550 g/m² indoors and 350–450 g per plant outdoors in a good spot. Northern Lights is famous for packing dense, resinous buds onto a manageable frame, so keep the canopy open and support the colas to make the most of its generous output.
What does Northern Lights taste like?
Expect a sweet, woody flavour with an earthy, resinous backbone, the classic old-school indica profile its Afghani side is known for. Myrcene and linalool carry the sweetness, humulene and borneol add the woody, earthy depth, and pinene with caryophyllene bring a fresh, gently peppery lift.
Is Northern Lights Regular good for beginners?
It is a famously hardy, forgiving indica, but because it comes as regular seeds it asks a little more than a feminized strain, since you need to sex the plants and remove males. If you are comfortable with that step, its resilient, fast-finishing nature makes it a very rewarding grow.
