How to Grow Alien OG Fast Version

Alien OG Fast Version is a 70% indica-dominant fast-flowering strain, a cross of Alien Kush and Tahoe OG Kush S1. It carries a THC level of 14 to 16%, which runs from low to medium, and delivers a euphoric, happy and relaxed effect over a citrus and herbal flavor. It is a fast version, a photoperiod plant bred to finish quicker than classic Alien OG without turning into an autoflower. This guide walks you through the whole grow, from germinating the seeds to the final cure.

It stays a compact 1.2 m, flowers in a very quick 7 to 8 weeks, and its short bloom lets it finish across a range of seasons with a high yield. That speed and small size, paired with a forgiving nature, make it a strong pick even for first-time growers.

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Alien OG Fast Version

	THC	14% - 16% (Medium)
	Type	Fast Flowering
	Yield	High
	Phenotype	70% Indica / 30% Sativa

1 Seed - $17.503 Seeds - $426 Seeds - $659 Seeds - $8025 Seeds - $19550 Seeds - $320100 Seeds - $580 Add to cart

Alien Technology Fast Version

	THC	16% - 18% (Medium)
	Type	Fast Flowering
	Yield	Medium
	Phenotype	90% Indica / 10% Sativa

1 Seed - $17.503 Seeds - $426 Seeds - $659 Seeds - $8025 Seeds - $19550 Seeds - $320100 Seeds - $580 Add to cart

Alien OG Fast Version at a Glance

Before you plant anything, it helps to see the full picture in one place. Here is the quick profile for this fast, compact, kushy indica, taken straight from the strain’s grow data.

These are fast flowering seeds, photoperiod plants bred to bloom quicker than a standard strain. Its 70% indica lean places it among the indica seeds, while its strong harvest earns it a spot with the high-yielding seeds. Its OG Kush backbone also makes it a natural fit with the Kush strains.

How to Germinate Alien OG Fast Version Seeds

A healthy harvest starts at germination. The paper towel method is hard to beat: fold the Alien OG Fast Version seeds inside two damp sheets, slide them between two plates, and keep them somewhere dark at 70 to 79°F. A taproot usually appears in two to five days.

Once the taproot is a few millimeters long, move each seed root-down about 1 cm deep into a small pot of light, airy medium. Keep it lightly moist rather than soaked, hold humidity around 65 to 70%, and give soft light while the first true leaves open. Its sturdy OG genetics make for a strong, dependable seedling.

Starter tips

• Use plain, lightly pH-balanced water (pH 5.5 to 6.5) for the first week.
• Keep seedlings warm and humid, but never waterlogged.
• Hold off on nutrients until the second set of serrated leaves appears.

Growing Alien OG Fast Version in the Vegetative Stage

As a photoperiod plant, you control the veg stage with the light schedule. Keep Alien OG Fast Version on 18 hours of light a day for as long as you want it to grow, aim for day temperatures of 68 to 79°F, and hold humidity around 50 to 60%. It suits a temperate climate, so steady, moderate conditions work in its favor. As a 70% indica it grows into a short, sturdy, bushy plant that stays around a compact 1.2 m.

This is the stage to shape the plant. Because it bushes out, topping early and using low-stress training to spread the lower branches opens up the canopy, improves airflow, and lifts the yield. Unlike an autoflower, you decide when to flower it, so you can run a short veg for a quick turnaround or a longer one for a bigger plant before you flip.

Its compact, sturdy build and quick finish make it versatile both indoors and out:

• Short-season outdoor plots: its fast 7 to 8 week bloom lets it finish before the worst of the autumn damp, useful in cooler regions.
• Discreet gardens: at around 1.2 m it stays low-profile on a balcony or in a small plot.
• Indoor tents: its short, compact build makes it easy to manage and quick to turn around under lights.

Flowering and Buds of Alien OG Fast Version

Indoors, flip Alien OG Fast Version to a 12/12 light cycle to trigger flowering, which runs a very quick 7 to 8 weeks, faster than a classic Alien OG. As a heavy indica it shows only a modest stretch after the flip, then packs on dense, resinous, chunky buds.

Through bloom, drop humidity to 40 to 45% and keep air moving so the tight flowers do not trap moisture. The buds build a bright citrus aroma over a herbal, earthy base, the OG Kush character of its Tahoe OG parent coming through clean and resinous.

At 14 to 16% THC it runs from low to medium, giving a euphoric, happy and relaxed effect, a gentle, easygoing lift that stays mellow rather than overwhelming.

Common Problems and Pro Tips

Alien OG Fast Version is beginner-friendly, but its dense buds and fast bloom point to a few things worth watching.

• Bud rot in dense colas: its tight, resinous indica flowers can trap humidity, so keep a fan moving and humidity below 45% late in flower.
• Do not rush the quick bloom: even at 7 to 8 weeks, wait for the trichomes rather than the calendar, as the last days still build resin and flavor.
• Even canopy: as a short, bushy indica, a little training keeps the lower buds productive and airflow good.

Expert tip: its citrus-and-herb profile rewards a clean grow. Keep an even canopy during veg, and dry and cure slowly so the bright citrus holds up over its herbal, earthy base.

Aroma, Flavor and Effects

The nose is bright and clean: a fresh citrus lift up front over a herbal, earthy base, with the grounded OG depth you expect from a Kush. It is a balanced, zesty-but-earthy profile rather than a sweet or dessert one.

The flavor follows the nose, bright citrus with a herbal, earthy finish. On the effect side it is euphoric, happy and relaxed, a gentle, easygoing lift. Because THC runs a low to medium 14 to 16%, it stays mellow and approachable rather than overwhelming.

Dominant terpenes

Alien OG Fast Version carries a bright, layered terpene profile. Limonene drives the fresh citrus that defines its nose, Myrcene lays down a herbal, earthy base, Caryophyllene adds a warm, peppery spice, Terpinolene a fresh, herbal-piney lift, Pinene a sharp pine note, and Humulene a dry, woody depth. A supporting cast of Citral, Linalool, Nerolidol, Terpineol, Farnesene and Cedrene, with Borneol, Cadinene, Camphene, Eugenol, Fenchol and Phytol in the background, rounds out its citrus and herbal character.

Nutrient Schedule

Treat the figures below as a starting map, not a rulebook. As a vigorous, high-yielding indica Alien OG Fast Version is a steady feeder, so read the plant first: tip burn means back off, while pale, slow growth means it wants a little more. All values use EC.

Keep the pH around 6.0 to 6.5 in soil and 5.5 to 6.0 in hydro so the roots can actually take up what you feed.

What to Do With Your Trim: Extracts and Hash

Alien OG Fast Version builds a solid coat of resin, so its trim is worth keeping rather than tossing. The sugar leaves you take off while manicuring hold trichomes and suit Ice Water Hash, where cold water and agitation separate the resin heads into a clean, solventless concentrate. Pressing that hash into rosin keeps the bright citrus flavor intact, or you can run a solvent extraction if that is your setup. The bare stems will not extract, but chopped and composted they feed organic matter back into the soil for your next grow.

Harvesting, Drying and Curing Alien OG Fast Version

Timing the harvest comes down to the trichomes. Grab a loupe and watch the heads turn from clear to milky white; a scattering of amber signals peak ripeness. With this fast version that point lands around 7 to 8 weeks after the flip, quicker than a classic Alien OG.

After the cut, hang the branches in a dark room at 59 to 68°F with humidity near 50% and gentle air movement. Slow beats fast: drying over 10 to 14 days protects the citrus and herbal aromas that define this strain. When the small stems snap instead of bending, move the buds into jars.

Cure in sealed glass, opening the jars daily for the first week to let moisture escape, then easing off as the aroma deepens. Two to four weeks of patience here is where the bright citrus and herbal, earthy depth really come together, and it is the step most first-time growers rush.

Frequently Asked Questions

Is Alien OG Fast Version an autoflower?

No, Alien OG Fast Version is a fast-flowering photoperiod strain, not an autoflower. You still switch it to a 12/12 light cycle to start bloom, but it has been bred to finish faster than a classic Alien OG. So you keep full control over veg time while enjoying a shorter overall grow.

Is Alien OG Fast Version easy to grow for beginners?

Yes, Alien OG Fast Version is beginner-friendly. Its forgiving genetics, compact 1.2 m size and very fast 7 to 8 week bloom make it an easy, quick grow. Just keep an even canopy, hold humidity below 45% late in flower, and it rewards the basics with a clean harvest.

How long does Alien OG Fast Version take to flower?

Alien OG Fast Version flowers in a very quick 7 to 8 weeks once you switch it to a 12/12 light cycle, faster than a classic Alien OG. As a heavy indica it shows only a modest stretch after the flip, then packs on dense, resinous buds over that short bloom window.

How strong is Alien OG Fast Version?

Alien OG Fast Version has a THC level of 14 to 16%, which runs from the low range into the medium range. The effect is euphoric, happy and relaxed, a gentle, easygoing lift. That mellow potency makes it an approachable strain rather than an overwhelming one.

How much does Alien OG Fast Version yield?

Alien OG Fast Version is high-yielding. Indoors it gives around 1.47 to 1.64 oz/ft², and outdoors a plant reaches roughly 21.16 to 31.75 oz in good conditions. An even canopy, light training and strong light are what help its dense, resinous buds fill out to their full potential.

What does Alien OG Fast Version taste and smell like?

Alien OG Fast Version leads with a fresh citrus aroma over a herbal, earthy base, with the grounded OG depth of a Kush. It is a balanced, zesty-but-earthy profile rather than a sweet one. Both the aroma and flavor deepen as the buds cure slowly after harvest.