If you’re chasing a cosmic high with West Coast roots, the Alien OG strain, also known as Alien OG Kush, deserves your attention. This potent 50/50 indica/sativa hybrid delivers around 25-28% THC and comes from a legendary cross: Alien Kush × Tahoe OG Kush. You can expect a flowering time of just 8–10 weeks, which is relatively fast considering how powerful this strain is. As a long-standing favorite in California dispensaries, Alien OG weed blends the uplifting clarity of a Sativa with the full-body relaxation of OG classics. It’s one of the most sought-after Alien weed strains for both recreational and medicinal users, offering intensity without compromise.
Want to know more about the Alien OG plant, its effects, grow tips, and prices for seeds? This strain information page covers everything, from lineage to yields, plus expert guidance from Sirius. As your trusted source for premium marijuana strains and grow gear, we’ve got your back. Visit our online Smartshop to discover top-quality weed strains, seeds, and more!
The Alien OG strain was first bred by The Cali Connection, the USA’s second-oldest legal cannabis seed company, around 2010. By combining Alien Kush with Tahoe OG Kush, they managed to create a balanced hybrid strain that quickly became famous across dispensaries in the Bay Area and Southern California. It wasn’t long before the strain made headlines thanks to independent lab tests recording THC levels that surpassed even the most potent OGs at the time, reaching up to 28% in some phenotypes!
This meteoric rise made Alien OG a legend in its own right. Stoners praised its euphoric punch and intense flavour, while growers loved its reliable flowering cycle and dense, resin-coated buds. Today, Alien strain genetics are found in countless strains and remain a favorite among cannabis fans looking for consistency, power, and versatility. Whether you know it as Alien weed, OG Alien, or Alien OG, it has earned its seat at the table of elite cannabis strains!
One of the most intriguing aspects of Alien OG is its genetic background. This hybrid is a perfectly balanced 50% Indica 50% Sativa cross. This makes it ideal for users who want the best of both worlds. Whether you're looking to unwind after a long day or boost your creative flow, it delivers a balanced experience. Its parent strains, Alien Kush and Tahoe OG Kush, bring a unique blend of effects and aromas that are both nostalgic and powerful. Because of the influence of two Kush-like strains, Alien OG is also sometimes referred to as Alien OG Kush. Let's take a quick look at this genetic background:
The Alien Kush side of the lineage comes from Las Vegas Purple Kush crossed with Alien Dawg. Known for its earthy, piney aroma and uplifting psychoactive edge, it introduced a slightly trippy vibe into Alien OG’s genetic profile. The cerebral effects are mild but noticeable, making it a great balance to the heavier OG traits. Alien Kush delivers strong cannabis aromas and a flavor that leans toward the floral-spicy spectrum. It also plays a role in giving the Alien OG plant its compact, bushy stature, good for indoor growers seeking maximum efficiency.
Tahoe OG Kush is the heavy hitter of the family. Known for its dank, lemon-fuel aroma and potent sedative effects. A true OG strain, Tahoe OG brings high resin production, long-lasting body highs, and that signature fuel-forward terpene profile that many associate with classic California weed strains. This parent is largely responsible for Alien OG’s sky-high THC levels, giving it its knockout punch and “couch-lock” potential when consumed in higher doses.
When it comes to potency, the Alien OG THC level seems like it comes from outer space. Most lab tests place its THC content between 22 and 28%, with some indoor-grown phenotypes reaching even higher levels. This makes it one of the strongest weed strains on the market, offering a fast-acting cerebral lift followed by deep physical relaxation. Expect a quick and heavy hit that is perfect for experienced stoners looking for maximum effect with minimal dosage.
On the other end of the spectrum, CBD levels in the Alien weed strain are very low, typically well under 1%. This makes it a predominantly recreational strain that offers strong psychoactive effects. Are you looking for more balanced cannabinoid profiles? Sirius offers a wide range of CBD medical seeds with high CBD ratios and lower THC profiles. Additionally, our online CBDShop offers CBD-infused teas, skincare, oils, and more, which is- perfect If you want to experience the non-psychoactive benefits of CBD without smoking or vaporizing anything!
The Alien OG strain doesn’t just deliver strong effects; it also takes your senses on a journey to space. From the moment you open a jar or a ziplock bag of well-cured buds, you’re hit with a bold aroma that hints at the power within. The next sections explore the taste, smell, terpene profile, and visual characteristics of this premium cannabis strain.
One of the best traits of the Alien OG is its layered, dynamic flavor profile. On inhale, expect sharp notes of zesty lemon and fresh pine, followed by deeper undertones of earthy spice and a faint diesel kick inherited from its OG Kush lineage. The smoke is dense but smooth, leaving a sweet citrus aftertaste on the exhale.
To enjoy the full flavor experience of Alien OG weed, we highly recommend avoiding tobacco and smoking it pure, or even better: use a high-quality weed vaporizer. Vaporizing not only preserves the rich terpene content but also enhances taste, reduces harshness, and makes dosing easier, which is important with high-THC strains like this one!
The Alien OG weed strain features a terpene composition that not only shapes its aroma and flavor, but also enhances its effects by interacting with cannabinoids. These are the primary terpenes present in most phenotypes:
Visually, the Alien OG plant is shining like a massive star in the sky. The plant produces dense, large buds with a striking lime-green hue, covered with thick orange pistils. Each flower shimmering trichomes, so many in fact that mature flowers appear almost silver under light!
Thanks to its hybrid genetics, the Alien OG delivers a balanced high that starts with a powerful cerebral uplift and ends in full-body relaxation. The mental buzz is often described as energetic, creative, and even a little trippy, making it a favorite for social smokers, artists, and seasoned users who have a good tolerance to THC.
On the physical side, Alien OG strain effects include deep muscle relaxation, body warmth, and a notable decrease in physical discomfort. This can make it a potentially useful option for users dealing with chronic pain, fatigue, or stress-related tension. Medicinal users may choose this strain for conditions like anxiety, insomnia, appetite loss, and inflammation.
Disclaimer: Alien OG weed might help ease certain symptoms, but it can also increase the risk of anxiety, depression, or other mental health issues for some individuals. Always seek guidance from a healthcare professional before using cannabis for medicinal purposes.
To be on the safe side, you can use a high-quality digital scale to make sure you don't over-consume your weed, especially with a strain this potent.
Like many strains with a high THC content, Alien OG can be intense for beginners or those with low tolerance. Some common side effects include:
It’s worth noting that these effects are usually dose-dependent and fade quickly. If you're new to high-potency marijuana, start with small amounts and gradually build up your comfort zone.
Growing Alien OG is a rewarding project for both beginners and experienced cannabis growers. This strain responds well to training, resists common pests, and finishes relatively quickly. To get the most out of your grow, it’s important to understand the plant’s needs week-by-week, from early vegetation to harvest. For detailed insights by those who have already grown Alien OG, you can look for a grow report to map out lighting schedules, feeding ratios, and pruning techniques. Whether you’re growing indoors or outdoors, make sure to get all your growing equipment from Sirius’ online Growshop. Here you’ll find germination tools, premium grow tents, professional cannabis grow lights, and much more!
The Alien OG strain offers impressive results within a short timeframe especially when using biological fertilizer for cannabis. Indoors, it flowers in 8 to 10 weeks, and yields typically range between 450–500 g/m² under optimal conditions.
Outdoor growers can expect to harvest around early October, with yields averaging 500 grams per plant, depending on sun exposure, climate, and soil health. If you’re based in a region with shorter summers, this strain's fast finish is a big advantage.
When grown well, Alien OG plants remain compact (around 80–120 cm indoors), making them an ideal choice for tent growers and those working with limited vertical space.
This strain thrives best under high-quality lighting during the flowering phase. Consider techniques like Screen of Green (SCROG) or Low Stress Training (LST) to control vertical growth and open up the canopy. This not only improves airflow but also boosts bud development. Keep relative humidity below 50 % in late flower to avoid mold. Feed with balanced NPK nutrients and monitor pH closely, as this hybrid appreciates a consistent root environment.
Outdoors, the Alien OG strain prefers warm, temperate climates with low humidity. Regions with a Mediterranean-style growing season are ideal. Make sure to train branches early for better airflow and light penetration. It adapts well to outdoor setups, but for best results, watch the weather and plan your season accordingly.
Pest management is important, although this strain has solid resistance, regular checks for mold, mites, and caterpillars are key to maximizing yield. In short-summer areas, consider starting indoors to give your plants a head start.
Feminized seeds eliminate the guesswork and risk of male plants, making your grow more efficient and productive. Choosing Alien OG feminized cannabis seeds means nearly every plant will be female, meaning it will be producing dense, THC-rich buds.
Sirius offers top-tier feminized seeds, including Alien OG and other premium genetics from classic OGs to exotic newcomers. Whether you’re starting your first grow or you’re a long-time grower, our selection of feminized cannabis seeds has something to fit your individual preferences!
Autoflower cannabis plants require less light management and often finish from seed to harvest in under 10 weeks. While they tend to be smaller and slightly less potent than photoperiod strains, they offer a faster, lower-maintenance alternative that’s ideal for beginner growers or seasonal outdoor setups.
There is an autoflowering version of Alien OG, but it’s not yet available at Sirius’ online Seedshop. While you wait for it to arrive, check out our range of the best autoflower cannabis seeds, which are perfect for fast harvests, stealth grows, or limited indoor spaces.
The Alien OG strain stands strong on its own, but for weed growers and smokers who want to explore similar flavor profiles or effects, there’s a galaxy of options worth trying.
Looking to grow your own Alien OG plant at home? Sirius makes it easy. We currently offer Alien OG seeds by Royal Queen Seeds, available now directly in our online Seedshop! As always, we guarantee discreet shipping throughout Europe, high germination rates, and premium, discreet packaging. Plus, you can collect Spacemiles with every purchase. They add up fast and can be redeemed for discounts and exclusive gifts!
At Sirius, Alien OG seeds are priced competitively for all grow levels. You can expect 1 seed to be priced at around €10, but when you buy a bigger pack, the price per seed will reduce!
Looking for more value? When you shop with Sirius Smartshop, you can save on shipping and accessories by ordering from a single trusted supplier. Whether you need grow lights, grinders, or even a new bong, we’ve got you covered in every category from Smartshop, Headshop to Seedshop and Growshop.
You can buy Alien OG seeds directly from our online Seedshop, with fast and discreet shipping across the EU. Do you prefer to shop in person? You can visit one of our physical Smartshops in Maastricht, Venlo, or Roermond to view all our cannabis seeds and accessories. Our staff will be happy to help you find the right strain and growing methods for your individual needs!
There is a fast-flowering, aka autoflowering, version of Alien OG developed by some breeders, but it is not currently available in the Sirius Seedshop. However, our autoflowering category is regularly updated. Keep an eye out or explore our other autoflower weed strains in the meantime.
Yes! Alien OG feminized cannabis seeds are an excellent option for growers of all experience levels. The feminized nature ensures nearly 99% female plants, meaning you won’t waste time or space on males. With a compact size, manageable growth, and short flowering time, Alien OG is both forgiving and rewarding, especially when paired with Sirius’ grow gear and guides!
Plan on about 16–19 weeks indoors from seed to first smoke: ~1 week to germinate, 2-4 weeks of veg , 8–10 weeks of flowering, then about 1 week to dry and at least 2 weeks to cure; outdoors, harvest is typically around early October, and autoflower versions of Alien OG usually finish in under 10 weeks from seed, though they’re smaller and a less potent.
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