How to Grow Northern Lights V x Amnesia Haze
Northern Lights V x Amnesia Haze, built from the Northern Lights #5 cut, is a tall, sativa-dominant feminized strain that joins two all-time classics. It pairs a potent 16–24% THC with a notable 2% CBD, an earthy, herbal, spicy-woody flavour and an energetic, euphoric, uplifted effect, on a big, resinous plant that rewards a little patience.
Built from Northern Lights #5 crossed with Amnesia Haze, this is a 60% sativa, 40% indica strain that marries the resin and sturdiness of Northern Lights with the soaring, cerebral lift of Amnesia Haze. The result is a stretchy, high-THC plant with real old-school haze character.
Recommended Strains
Northern Lights #5 x Amnesia Haze
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THC | 16% - 24% (High) |
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Type | Feminized |
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Yield | Medium |
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Phenotype | 40% Indica / 60% Sativa |
Auto Northern Lights CBD
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CBD | 12% – 15% (Medium) |
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Type | CBD Autoflowering |
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Yield | Medium |
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Phenotype | 85% Indica / 15% Sativa |
Because it is flavourful, potent and grows true to type, it is a rewarding project for keen cultivators. You can see the full genetics and buy Northern Lights #5 x Amnesia Haze feminized seeds on the strain page, and browse more of our haze genetics alongside it.
Strain Profile at a Glance
| THC | 16–24% (high) |
|---|---|
| CBD | 2% |
| Lineage | Northern Lights #5 x Amnesia Haze |
| Type | Feminized |
| Genetics | 60% Sativa / 40% Indica |
| Climate | Temperate |
| Flowering time | 9–12 weeks |
| Harvest | November |
| Height | 6.56 ft / 2 m |
| Yield | Medium |
| Yield indoor | 1.47 oz/ft² (450 g/m²) |
| Yield outdoor | 21.16 oz/plant (600 g/plant) |
| Grow difficulty | For keen growers |
| Flavors | Earthy, Herbal, Spicy, Woody |
| Effects | Energetic, Euphoric, Uplifted |
Promos & Deals
Climate and Where to Grow It
Northern Lights V x Amnesia Haze suits a temperate climate, but its long, haze-driven bloom really wants a warm, extended season. Outdoors it does not finish until around November, so it is best in regions with mild, dry late autumns, or grown indoors where you fully control the environment.
It is a big plant, reaching up to 2 m with the classic sativa stretch, and a single outdoor plant can bring in a solid 600 g in a good spot. Indoors it produces around 450 g/m². Keep humidity in check through the long flowering period, as the airy haze buds still need protection from damp late in the season.
Indoors, aim for daytime temperatures around 68–82°F (20–28°C), give it headroom and keep steady airflow through the tall canopy.
Managing the Height
This is a tall, stretchy sativa, so height control is the main thing to plan for, especially indoors. It can double or more in height once you flip to flower, so start training early: top the plant during veg to encourage multiple colas, and use low-stress training to bend the branches out and keep the canopy level.
Giving it a shorter vegetative period before flipping also helps keep the final size manageable. Outdoors, simply give it room and support the heavy, elongated colas as they develop so they do not fold under their own weight.
Growing Feminized Photoperiod Seeds
As a feminized strain, every seed grows into a flowering female, so there is no need to sex the plants or remove males. That keeps the grow simpler and means no wasted space on plants you would only cull.
Being a photoperiod plant, it flowers on a light change: grow it under a long day (around 18 hours of light) through veg, then switch to a 12/12 cycle to trigger flowering. With such a long bloom, planning your veg length is key to keeping this big plant in check.
Feeding Schedule (EC Guide)
This is a steady feeder across a long flowering period, so give it what it needs week by week rather than pushing hard. Start low, build up gradually, and taper off for the final flush so the earthy-spicy flavour stays clean.
| 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 through the long flowering stretch |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Flowering and Harvest
Once you flip to 12/12, bloom runs a long 9–12 weeks, which is typical of Amnesia Haze lines and the main thing to plan for. The sativa structure means plenty of stretch and long, airy colas rather than squat indica nuggets, so keep the canopy open and well lit.
Patience is rewarded with frosty, high-THC, resinous flowers. Harvest when most trichomes have turned cloudy with a few amber for the fullest expression, and run a short plain-water flush in the final week or two before you cut.
Drying and Curing
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. A slow, even dry protects the earthy-herbal aroma and stops the airy haze buds drying too fast on the outside.
Then cure the trimmed buds in sealed jars, burping them daily for the first week and letting them settle for three to four weeks. A proper cure brings the spicy, woody, herbal character forward and smooths the smoke, a fitting reward after such a long grow.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. This is a frosty, high-THC plant, so the trim is excellent for dry sift, bubble hash or rosin, giving you a bonus run of potent concentrate from material most growers throw away.
Flavor and Terpenes
Northern Lights V x Amnesia Haze tastes earthy, herbal, spicy and woody, a classic, savoury haze profile rather than a fruity or citrus-forward one. It is a complex, old-school aroma that reflects both sides of its heritage.
It carries a deep terpene stack. Six stand out: pinene drives a fresh, woody-pine note; caryophyllene adds a peppery, spicy warmth; humulene brings an earthy, woody depth; myrcene anchors the earthy, musky base; terpinolene lifts it with a fresh, herbal edge; and borneol adds an earthy, camphor-like note. A supporting cast of geraniol and linalool fills in the floral corners.
Effects and Best Use
With its 60% sativa base, Northern Lights V x Amnesia Haze is reported as energetic, euphoric and uplifted. It is a bright, soaring, cerebral profile straight out of the Amnesia Haze playbook, best suited to daytime and creative or social use.
At a potent 16–24% THC, with a touch of 2% CBD, it can be strong, so a little goes a long way, especially for less experienced users. That energetic high, the complex earthy-spicy flavour and the classic haze pedigree make it a characterful, rewarding strain for anyone who loves a proper sativa.
Common Problems and Pro Tips
Northern Lights V x Amnesia Haze is a rewarding but demanding grow listed for keen growers, so plan for its height and its long haze bloom.
- Control the height: it can reach up to 2 m with heavy sativa stretch, so flip a little earlier, top it or use a SCROG net to keep it manageable indoors.
- Plan for a long bloom: its Amnesia Haze side flowers for 9 to 12 weeks and finishes in November outdoors, so feed it through the whole window and be patient.
- Keep air moving: the long bloom and open canopy mean good airflow matters, so keep a fan moving air through the plant as it finishes in a temperate autumn.
Expert tip: this one rewards experience rather than shortcuts. The classic earthy, herbal, spicy-woody haze profile holds up best with a slow dry and a patient cure in jars.
Frequently Asked Questions
Is Northern Lights V x Amnesia Haze indica or sativa?
It is sativa-dominant, at 60% sativa and 40% indica, which gives it an energetic, euphoric, cerebral effect with a light body side. That sativa lean comes with a tall, stretchy plant and a long bloom, so train and top it early to keep the height and canopy manageable indoors.
How long does it take to flower?
A long 9 to 12 weeks once you switch to a 12/12 light cycle, typical of Amnesia Haze lines, with outdoor plants finishing around November. Feed it through that whole window, keep air moving, and start checking trichomes toward the end to catch the plant at your preferred ripeness.
How tall does it get?
It is a big plant, reaching up to 2 m with plenty of sativa stretch, so train and top it early to keep the height manageable, especially indoors. Flipping to 12/12 a little sooner and using a SCROG net both help you control that stretch and keep an even, well-lit canopy.
Do I need to sex the plants?
No. These are feminized seeds, so every plant grows into a flowering female. There is no need to identify or remove males, which keeps the grow simple and makes better use of your space, especially with a tall plant where every spot in the tent counts toward the harvest.
What does it taste like?
Expect an earthy, herbal, spicy and woody flavour, a classic haze profile driven by its pinene, caryophyllene, humulene and terpinolene terpenes. Dry slowly in a cool, dark space and cure in jars so that layered, resinous haze character comes through at its best in the finished flower.
How much does it yield?
It is a medium producer: 1.47 oz/ft² (450 g/m²) indoors, and around 21.16 oz (600 g) per plant outdoors in a good season. Training the tall haze stretch into an even canopy and feeding it through the long bloom help the plant reach the top of that range at harvest.
