How to Grow Green Crack x Amnesia Haze
Green Crack x Amnesia Haze is a bright, sativa-dominant feminized strain that joins two energising classics. It pairs a smooth 17–20% THC with a notable 2% CBD, a citrus, earthy, lemon flavour and a creative, euphoric, happy effect, on a vigorous, productive plant that is perfect for an uplifting daytime grow.
Built from Green Crack crossed with Amnesia Haze, this is an 80% sativa, 20% indica strain that blends the sharp, energetic buzz of Green Crack with the soaring, zesty haze of Amnesia. The result is a clear, focused, flavour-forward plant with real cerebral lift.
Recommended Strains
Green Crack x Amnesia Haze
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THC | 17% - 20% (Medium) |
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Type | Feminized |
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Yield | High |
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Phenotype | 20% Indica / 80% Sativa |
Green Crack
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THC | 21% (Medium) |
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Type | Feminized |
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Yield | High |
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Phenotype | 35% Indica / 65% Sativa |
Because it is vigorous, flavourful and still approachable, Green Crack x Amnesia Haze is a rewarding grow for sativa lovers of every level. You can see the full genetics and buy Green Crack x Amnesia Haze feminized seeds on the strain page, and browse more of our feminized range alongside it.
Strain Profile at a Glance
| THC | 17–20% (medium) |
|---|---|
| CBD | 2% |
| Lineage | Green Crack x Amnesia Haze |
| Type | Feminized |
| Genetics | 80% Sativa / 20% Indica |
| Climate | Temperate |
| Flowering time | 8–10 weeks |
| Harvest | October |
| Height | 4.92 ft / 1.5 m |
| Yield | High |
| Yield indoor | 1.97 oz/ft² (600 g/m²) |
| Yield outdoor | 1.76–3.53 oz/plant (50–100 g/plant) |
| Grow difficulty | Beginner-friendly |
| Flavors | Citrus, Earthy, Lemon |
| Effects | Creative, Euphoric, Happy |
Promos & Deals
Climate and Where to Grow It
Green Crack x Amnesia Haze does well in a temperate climate with mild, steady conditions and good light. It is an adaptable, vigorous plant that performs both outdoors and in a controlled indoor tent, reaching a manageable 1.5 m.
Indoors is where it really shines, bringing in a strong 600 g/m² of zesty, resinous bud. Outdoors it is a lighter producer per plant at around 50–100 g and finishes in October, so outdoor growers get the best of it with a warm, mild late season. Keep humidity in check as the buds fill in to protect the citrus aroma.
Indoors, aim for daytime temperatures around 68–80°F (20–27°C) and keep steady airflow through the canopy. A tidy, well-lit space gets the most out of its strong indoor yield.
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 simple and means no wasted time or space on plants you would only cull.
Being a photoperiod plant, Green Crack x Amnesia Haze 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. A longer veg builds a bigger frame and a bigger harvest, which suits this productive sativa.
Feeding Schedule (EC Guide)
This is a vigorous, productive plant, so you can feed it steadily through bloom to support the heavy buds. Start low, build up as the plant asks for more, and taper off for the final flush so the citrus-lemon 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 while the heavy buds swell |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Flowering and Harvest
Once you flip to 12/12, bloom runs about 8–10 weeks. The sativa lean shows in the structure: some flowering stretch early on, then long, resinous colas rather than squat indica nuggets, so a little early training keeps the canopy even.
As it ripens, the zesty citrus-lemon aroma really comes through. Harvest when most trichomes have turned cloudy with a few amber for the fullest, most uplifting expression, and run a short plain-water flush in the last 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 preserves the bright citrus-lemon aroma and stops the resinous buds drying unevenly.
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 zesty lemon and fresh, earthy character forward and smooths the smoke, which is exactly what this energising haze cross deserves.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Green Crack x Amnesia Haze is a frosty, resinous plant, so the trim is excellent for dry sift, bubble hash or rosin, giving you a bonus run of citrusy concentrate from material most growers throw away.
Flavor and Terpenes
Green Crack x Amnesia Haze leads with a zesty citrus-lemon note over a fresh, earthy base, the bright profile it inherits from its Green Crack and Amnesia Haze parents. It is a lively, uplifting aroma rather than a heavy or sweet one, with a subtle skunk undertone from its Green Crack roots.
Several terpenes shape it. Six stand out: terpinolene drives the fresh, zesty lift that carries the lemon character; geraniol adds a floral, lemony note; myrcene anchors an earthy, musky base; pinene brings a clean, fresh pine edge; caryophyllene adds a peppery warmth; and humulene rounds it out with a woody, earthy depth. A touch of borneol and linalool fills in the herbal corners.
Effects and Best Use
With its 80% sativa base, Green Crack x Amnesia Haze is reported as creative, euphoric and happy. It is a bright, clear-headed, energising profile that leans firmly toward daytime and creative or social use rather than an evening wind-down.
With its medium 17–20% THC and a touch of 2% CBD, it stays approachable rather than overwhelming, so it is easy to enjoy. That energetic, focused high, the strong indoor yield and the zesty citrus-lemon flavour make it a rewarding, uplifting grow.
Common Problems and Pro Tips
Green Crack x Amnesia Haze is a vigorous, forgiving grow, but its 80% sativa stretch and low outdoor return are worth planning around.
- Manage the stretch: as an 80% sativa it reaches up after the flip, so give it headroom and train the tops early to keep the canopy even and well lit.
- Grow it indoors for the yield: it is a strong producer indoors but stays light per plant outdoors, so a tent or greenhouse gets far more out of this one.
- Light the lower buds: its open, airy structure means the lower buds can get shaded, so spread the branches so light reaches down through the canopy.
Expert tip: the airy sativa buds resist mold well, but still reward airflow. The zesty citrus-lemon terpenes fade with heat, so dry slowly and cure in jars to keep that fresh character.
Frequently Asked Questions
Is Green Crack x Amnesia Haze indica or sativa?
It is strongly sativa-dominant, at 80% sativa and 20% indica, which gives it a bright, energetic, creative effect with just a light body side. That sativa lean also shapes the plant, which stretches and grows an open structure, so give it headroom and train the tops to keep the canopy even.
How long does it take to flower?
About 8 to 10 weeks once you switch to a 12/12 light cycle, with outdoor plants finishing around October. Its airy sativa buds resist mold reasonably well, but still keep a fan moving air through the canopy, and check trichomes toward the end to catch your preferred ripeness.
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 stretchy sativa where every spot in the tent counts toward the harvest.
Is Green Crack x Amnesia Haze good for beginners?
Yes. It is vigorous, forgiving and productive, which makes it beginner-friendly. Keep the canopy open and manage the sativa stretch with a little early training, and it is straightforward. It yields far more indoors than per plant outdoors, so a tent or greenhouse gets the most out of it.
What does Green Crack x Amnesia Haze taste like?
Expect a zesty citrus-lemon flavour over a fresh, earthy base, driven by its terpinolene, geraniol, myrcene and pinene terpenes. Those bright citrus notes fade with heat, so dry slowly in a cool, dark space and cure in jars to keep that fresh, zesty character after harvest.
How much does it yield?
Indoors it is a strong producer at 1.97 oz/ft² (600 g/m²), while outdoors it is lighter per plant at 1.76 to 3.53 oz (50 to 100 g). That gap means it performs best in a tent or greenhouse where you can control the canopy, the light and the airflow it needs to fill out.
