Alien OG Seeds

The Strength of Alien OG

This strain isn’t just potent — it’s one of the strongest on the market, packing a staggering THC content of up to 28%.

Known for its high potency

While this heavy-hitter is a well-balanced hybrid, many phenotypes lean toward the Indica side when it comes to effects. It’s a great choice for evenings or winding down after a long day, especially if you're looking for both mental and physical relief. This strain hits hard and isn’t ideal for beginners or those sensitive to potent strains. Start low and slow — this strain can overwhelm even experienced smokers if you’re not careful.

Feel the High of Alien OG

This is a seriously potent hybrid strain that hits both the mind and body in just the right way. It starts off with a rush of euphoria and a light, floaty head high that can boost your mood and spark some creative thoughts. But don’t get too comfortable — before long, the indica side kicks in with a deep, relaxing body buzz that melts away stress, tension, and whatever else is weighing you down.

This potent strain is known for its high THC levels so it’s definitely not one to underestimate. A few hits can leave even seasoned smokers feeling laid-back, a little spacey, and ready to sink into the couch. It's best saved for evenings or days when you’ve got nothing on the schedule, as it delivers that classic mix of cerebral uplift and full-body calm that makes hybrid lovers come back for more. Just be ready for the munchies — snacks are pretty much required.

Responsible marijuana use within one's tolerance levels can produce pleasant effects- avoid excessive intake.

The Flavor of Alien OG

This hard-hitting flower has a flavor that really stands out — it’s sharp, citrusy, and just a little funky in the best way. When you light it up, you’ll catch this fresh lemony vibe right away, kinda like lemon zest with a piney edge. That’s the limonene and pinene doing their thing. As you keep smoking, the flavor gets a little deeper — earthy, slightly peppery, with a musky back end that lingers. That comes from myrcene and caryophyllene, which also help mellow out the high. Some batches even sneak in a bit of that diesel funk, especially if they’re cured right. It’s smooth but flavorful, and you can taste those OG Kush roots with a little extra citrus punch. If you’re into bold, clean flavor with a bit of bite, this strain doesn’t disappoint.

Flowering Time 56-63 Days

-- Outdoor Grow (Full Sun / In Ground) --
Height: 6 Ft Plus
Yield: 1 1/2 - 2 Plus lbs. Cured

How to Grow Alien OG Marijuana Indoors and Outdoors

What to Watch Out for When Growing Alien OG - Because it produces dense, sticky buds, it's more prone to mold and bud rot in high humidity, especially late in flower. Good airflow, low humidity, and spacing between plants are key to avoiding problems. It doesn’t have natural pest resistance built into its genetics, but it’s not a magnet for bugs either. Like most strains, it can attract spider mites, aphids, or fungus gnats if your grow environment isn’t clean or balanced. it’s a good idea to grab some Holi Moli Eliminator and start using it early — that stuff makes it easy to stay ahead of mold, mildew, and bud rot before they ever become a problem. It does a solid job at keeping pests off too, especially if your space is clean and your plants aren’t stressed out.

- This isn’t the most tolerant strain when it comes to big temperature swings. Large or sudden swings can stress it and reduce quality.

- Somewhat sensitive to overfeeding, especially during the early veg and late flower stages

- May need support for heavy buds - Large amounts of bud production in the final weeks can make mature plants top-heavy and prone to breaking or tipping over.

- Finicky if severely root-bound early on meaning: If a plant’s roots outgrow their container too soon (like kept a small pot/cup during early veg), the plant can start acting fussy - stunted growth, slowed development, yellowing leaves, or weak structure - even if everything else (like light, water, and nutrients) is fine.

- To help your plants grow strong roots, follow Holi Moli's instructions on germination and transplanting. This will support their vigorous growth.

- Needs to be fed good nutrients - Grab a bottle of Holi Moli Juice to feed your plants the best nutrients out there.

Best Climate to Grow Alien OG Outdoors

This strain really thrives outside in warm, sunny climates, think California-type weather. It’s happiest with daytime temps around 75 to 85°F, cooler nights between 60 and 70°F, and low humidity to keep things dry and comfy. Try not to let it dip below 55°F at night, especially once it’s in flower — that can mess with your yields and slow things down. Pick a sunny spot where it can soak up 6 to 8 hours of direct light and catch a nice breeze — good airflow is clutch later in bloom. Give each plant plenty of space to stretch out and breathe.

Fabric pots in the 10 to 20 gallon range are ideal for growing this strain outdoors. They give the roots plenty of space to stretch out and support a healthy, high-yielding plant. With 10-gallon pots, give each plant about 4 to 5 feet of space to allow for strong branching and good airflow. 15 to 20 gallon pots let the plant really thrive—just be sure to space them 5 to 6 feet apart so they don't get overcrowded and you reduce the risk of mold. If you’re limited on space or prefer a more compact setup, 5 to 7 gallon bags can work, but they’ll cap the plant’s size and yield potential; for those, 2.5 to 4 feet of spacing should do the trick. For massive, long-season grows, you can even go with 25 gallons or more, but be ready to feed and water more often—and give each plant at least 6 feet of room to really sprawl. As always, fabric pots help improve drainage and airflow around the root zone, which is key for keeping Alien OG healthy in an outdoor setup.

How to Grow Alien OG Marijuana in Subtropical Climates

This plant can thrive in hot, arid subtropical climates, but to get the best out of it, you’ll want to take a few extra precautions. This strain loves sunshine, but when temps start pushing past 90–95°F, you’ll want to give it some protection from extreme heat. Use white shade cloths — not black — to reflect light and help keep the canopy cooler during the hottest part of the day. Hydration is key in dry climates, so water consistently and use mulch around the base to lock in moisture and prevent rapid evaporation. Fabric pots or smart pots are a smart move too, since they keep the roots cooler and improve airflow. Give each plant plenty of space to breathe and avoid mold or pest issues. It prefers light feeding in high heat, so go easy on the nutrients, especially nitrogen.

How to Grow Alien OG Marijuana in Temperate Climates

It can also do pretty well in temperate climates, but you’ve gotta stay a step ahead of the weather, especially later in the season. Those buds get thick and super sticky, which makes them more likely to catch mold if it starts raining or the humidity creeps up. A solid move is to start your seeds indoors, then pop them outside once the frost is behind you and nights are staying above 50°F. Give your plants a couple feet of space between each other so air can move through and keep things dry. And if you see rain in the forecast during flower, don’t wait — toss up a basic rain cover, some plastic sheeting, or even a little greenhouse setup to keep those buds safe and dry through to harvest in early or mid-October.

How to Grow Alien OG Cannabis Indoors

If you’re growing indoors, you’ll want to create a stable, dialed-in environment — it’s not the most finicky strain, but it does appreciate consistency. During the light cycle, keep your temps around 75–80°F, and during the dark cycle, aim for 60–70°F. Try to avoid big swings between day and night — a 10–15°F drop is fine, but anything more can stress the plant. In veg, it likes humidity in the 50–60% range, which helps keep the growth lush without risking mildew. Once you flip to flower, start bringing humidity down to 40–50%, and in the final weeks, aim for 35–45% to keep those thick buds safe from mold. As always, don’t forget: better lights = better buds.

Fabric pots in the 5 to 7 gallon range are ideal. A 5-gallon pot offers plenty of root space for healthy growth while keeping things compact—perfect for tents or limited spaces. If you’ve got extra room and want to push for bigger yields, 7 gallons gives the roots more freedom and supports a fuller canopy. Space-wise, give each plant 2 to 3 feet if you’re letting them grow naturally.

This strain responds well to training, especially topping and low-stress training (LST), which can help open up the canopy and encourage more bud sites. If you’ve got the setup for it, a SCROG net works great too — it fills out nicely and stays pretty manageable height-wise. Light defoliation during veg and early flower can also help with airflow, just don’t go overboard.

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