How to Grow GG4 Autoflower
GG4 Auto is the autoflowering version of the legendary GG4, crossed with a ruderalis so it flowers on age. It is a sativa-leaning 60/40 hybrid with a high 18-24% THC, a fruity, piney flavor, and a happy, relaxed, talkative effect. Compact, extremely resinous and a heavy producer, it brings GG4’s famous sticky, fuel-tinged character to a fast, easy auto grow.
As an autoflowering strain, GG4 Auto flowers automatically with age rather than waiting on a change in the light cycle, so there is no need to switch it to shorter days. You simply give it long days from start to finish and it starts flowering on its own after a few weeks, running its whole life cycle in about 8 to 10 weeks from seed to harvest. That speed and simplicity are exactly what make autos so easy to grow.
Recommended Strains
GG4 Autoflower
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THC | 18% - 24% (High) |
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Type | Autoflowering |
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Yield | High |
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Phenotype | 40% Indica / 60% Sativa |
GG Autoflower F1
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THC | 24% - 28% (High) |
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Type | Autoflowering F1 |
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Yield | High |
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Phenotype | 40% Indica / 60% Sativa |
Sticky, potent and productive, GG4 Auto is a rewarding auto to grow whether you are new to it or experienced. You can see the full genetics and buy GG4 Auto seeds on the strain page, and browse the rest of our autoflowering seeds alongside it.
Strain Profile at a Glance
| THC | High (18-24%) |
|---|---|
| Lineage | GG4 x Ruderalis |
| Type | Autoflowering |
| Genetics | 60% Sativa / 40% Indica |
| Climate | Temperate |
| Life cycle | 8-10 weeks seed to harvest |
| Harvest (outdoor) | All season |
| Height | 3.28 ft / 1 m |
| Yield indoor | 1.31-1.97 oz/ft² (400-600 g/m²) |
| Yield outdoor | 17.64-26.46 oz/plant (500-750 g/plant) |
| Grow difficulty | Easy, beginner-friendly |
| Flavors | Fruity, Pine |
| Effects | Happy, Relaxed, Talkative |
Promos & Deals
Growing an Autoflowering Strain
GG4 Auto flowers on its own schedule, starting to bloom a few weeks after it sprouts no matter how long the days are. That means you keep it under long light the whole way through, typically 18 hours on and 6 off, or even 20/4, from seedling right to harvest; there is no switch to a shorter day to trigger flowering. The trade-off is that you cannot delay flowering to grow the plant bigger first, so every week of healthy early growth counts.
Because autos grow fast and do not like having their roots disturbed, start GG4 Auto in its final pot rather than transplanting it. Sow the seed straight into the container it will finish in, go easy on the feed while it is young, and let it establish without a check. With a short life cycle of around 8 to 10 weeks from seed to harvest, a smooth start is the single biggest thing you can do for a strong, even finish.
Climate and Where to Grow It
GG4 Auto suits a temperate climate and, like most autos, it is flexible about when you plant it. Because it flowers on age rather than on the season, you can run it at almost any time where the weather is warm enough, which is why its harvest window is listed as all season; outdoors you can even fit in more than one cycle in a long, warm year. At a compact 1 m it slips easily into a small tent or a sunny corner.
Yields are where GG4 Auto really shines: around 400-600 g/m² indoors in an optimized setup and an exceptional 500-750 g per plant outdoors when it has space, sun and a large pot, which is a huge return for a compact autoflower. As an easy, vigorous sativa-leaning plant it is one of our standout best autoflowering seeds, so giving it plenty of light and root room is the key to that big harvest.
Keep humidity sensible through flowering to protect those dense, resinous buds: around 55-60% early on, nearer 40% as the flowers fill out, and lower toward harvest. GG4 Auto is extremely sticky and its tight colas can trap moisture, so steady airflow through the canopy is essential. Aim for temperatures around 68-80°F (20-27°C) for healthy, vigorous growth. Its 18-24% THC also makes it a real standout among our high-THC seeds.
Feeding Schedule (EC Guide)
GG4 Auto is a hungry, resinous auto that can take a solid feed to fuel its big harvest, but autos still want a lighter hand than photoperiod plants, so build slowly. Start very light, raise it gently as the plant grows, push a little more phosphorus and potassium through flower, then flush at the end so the fruity, piney notes come through clean. The ranges below are a starting guide; adjust to your water and medium.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4-0.6 | Very light feed while roots establish in the final pot |
| Early growth | 0.8-1.2 | Raise nitrogen gently as the plant builds size |
| 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
GG4 Auto starts flowering a few weeks from sprouting and runs its whole cycle in about 8 to 10 weeks from seed to harvest, with no change in the light cycle needed. It fills out with dense, extremely resin-coated, trichome-caked buds on a compact frame, developing a fruity aroma with a fresh, piney edge over the sticky, fuel-tinged character of its GG4 side. Because it flowers on age, its harvest comes on a fixed, quick timeline.
Yields are excellent for an auto: around 400-600 g/m² indoors and a big 500-750 g per plant outdoors on its short cycle. Keep the heavy colas supported and the canopy open so the lower buds get light, feed it well through flower, and harvest when most of the trichomes have turned cloudy with a few amber for the fullest fruity-pine flavor and the most rounded effect.
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 matters with such dense, extremely resinous buds, because they can stay damp in the middle while the outside dries, and a gentle dry protects the fruity, piney aroma.
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 is what brings out the fruity and piney notes and smooths the smoke, turning a freshly dried auto harvest into the rich, sticky, potent result GG4 is known for.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. GG4 Auto is famously one of the stickiest, most resinous plants around, so its trim is excellent for dry sift, bubble hash or rosin. That heavy resin and fruity, piney aroma make the trim genuinely valuable, turning offcuts into a potent, flavorful concentrate run rather than waste.
Flavor and Terpenes
GG4 Auto leads with a fruity flavor lifted by a fresh, piney edge over the sticky, fuel-tinged base that made GG4 a modern classic. It is a smooth but pungent smoke, and a good cure really brings that fruity-pine-and-fuel character forward in the jar and on the inhale.
Its terpene profile shapes that flavor. Myrcene drives a sweet, fruity, mellow base, while caryophyllene adds the warm, peppery, fuel-like spice of the GG4 side and humulene brings a woody, earthy depth. A touch of alpha-pinene gives the fresh, piney edge, with a little terpinolene and linalool rounding it out with herbal and soft floral notes. Together these terpenes frame the fruity, piney character this strain is known for.
Effects and Best Use
With its high 18-24% THC and sativa-leaning 60/40 make-up, GG4 Auto delivers a potent, well-rounded experience. It is reported as happy, relaxed and talkative, pairing an upbeat, sociable head with a comfortable, settled body, which makes it a versatile strain for day or evening. Its potency can run high, so a little goes a long way, especially for newer smokers.
That happy, relaxed, talkative profile makes it a satisfying all-rounder, good for unwinding or social time while enjoying its fruity, piney flavor. The combination of a fast, compact, exceptionally high-yielding auto grow, heavy resin and a potent effect is exactly why this GG4 autoflower stands out.
Common Problems and Pro Tips
GG4 Auto is forgiving, but autos reward a careful start. Sow it straight into its final pot to avoid a transplant check, go light on the nutrients while it is young, and do any training early and gently, because once an auto starts flowering it will not recover lost time. Stick to low-stress training only, and only while the plant is still growing.
At a compact 1 m it is easy to manage, so the main jobs are a smooth start and good light, which is especially important given how productive this strain is. Because it is so sticky and resinous, keep the air moving around the dense colas, hold humidity sensible through flower, and defoliate a few of the largest fan leaves so light reaches the lower buds for an even, heavy finish.
As a pro tip, make the most of its huge yield and heavy resin: give it a large final pot and strong light to hit those big outdoor numbers, keep the feed modest, and protect the terpenes with a proper plain-water flush and a full three to four week cure. Save the sticky trim for concentrates, and harvest when most trichomes are cloudy with a few amber for a rich, potent, fruity-pine result.
FAQ
Is GG4 Auto an autoflowering strain?
Yes. GG4 Auto flowers automatically with age rather than on a change in the light cycle, so you keep it under long days, usually 18/6 or 20/4, from seedling to harvest. It starts flowering on its own a few weeks after sprouting and runs its whole life cycle in about 8 to 10 weeks from seed to harvest, which makes it fast and simple to grow.
Should I transplant GG4 Auto?
No. Autos grow fast and do not like having their roots disturbed, so start GG4 Auto straight in its final pot rather than transplanting it. Sow the seed into the container it will finish in, go easy on the feed while it is young, and let it establish without a check. A smooth, uninterrupted start is the single biggest thing you can do for a strong finish.
How much does GG4 Auto yield?
GG4 Auto is an exceptional yielder for an auto, producing around 400-600 g/m² indoors in an optimized setup and a big 500-750 g per plant outdoors with space, sun and a large pot. Give it good light, a big enough final pot and an open canopy to unlock that heavy, sticky harvest from such a compact, fast plant.
How much THC does GG4 Auto have?
GG4 Auto is a high-THC auto, testing from around 18% up to 24% depending on the phenotype and how it is grown. Combined with its sativa-leaning 60/40 genetics, the result is a happy, relaxed, talkative effect. Because the potency can run high and the buds are so resinous, it is worth dosing carefully if you are newer to strong strains.
What does GG4 Auto taste like?
It has a fruity flavor with a fresh, piney edge over a sticky, fuel-tinged base from its GG4 side. Myrcene drives the fruity base, caryophyllene the peppery, fuel-like spice, humulene a woody depth, and alpha-pinene a fresh, piney lift. A proper three to four week cure really brings that fruity-pine-and-fuel character forward on the inhale.
How long does GG4 Auto take?
GG4 Auto runs its whole life cycle in about 8 to 10 weeks from seed to harvest, because it flowers on age rather than on the season. That short, fixed timeline means you can plant it almost any time where it is warm enough, and outdoors you can fit more than one cycle into a long, warm year. There is no light-cycle change to manage.
