How to Grow GG4 Fast Version
GG4 Fast Version is a quick-flowering, sativa-leaning feminized version of the famous GG4. It is a 60/40 sativa with a medium 19-22% THC, a rich chocolate flavor over an earthy base, and a creative, euphoric, relaxed effect. Compact, heavy-yielding and finishing in just 6 to 8 weeks, it is a fast, rewarding strain to grow.
As a feminized strain, GG4 Fast Version produces only female, flower-bearing plants, so you can skip sexing and avoid sorting out males. Every seed goes toward a productive, bud-growing plant from the start. Being a Fast Version, it is still a photoperiod plant that you flip to 12/12 to flower, but it has been bred to finish noticeably quicker than the standard version.
Recommended Strains
GG4 Fast Version
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THC | 19% - 22% (Medium) |
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Type | Feminized |
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Yield | High |
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Phenotype | 40% Indica / 60% Sativa |
GG4
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THC | 27% (High) |
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Type | Feminized |
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Yield | High |
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Phenotype | 40% Indica / 60% Sativa |
Quick, compact and heavy-cropping, GG4 Fast Version is one of the easiest ways to grow this classic. You can see the full genetics and buy GG4 Fast Version seeds on the strain page, and browse the rest of our feminized seeds alongside it.
Strain Profile at a Glance
| THC | Medium (19-22%) |
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| Lineage | GG4 (Fast Version) |
| Type | Feminized (Fast Version) |
| Genetics | 60% Sativa / 40% Indica |
| Climate | Temperate |
| Flowering time | 6-8 weeks |
| Harvest (outdoor) | All season (flexible) |
| Height | 3.94 ft / 1.2 m |
| Yield indoor | 1.64-1.97 oz/ft² (500-600 g/m²) |
| Yield outdoor | 21.16-28.22 oz/plant (600-800 g/plant) |
| Grow difficulty | Easy, beginner-friendly |
| Flavors | Chocolate |
| Effects | Creative, Euphoric, Relaxed |
Promos & Deals
Growing a Fast Version Feminized Strain
GG4 Fast Version is a photoperiod feminized strain, which means it flowers in response to the light cycle rather than its age. You keep it under long days, usually 18 hours of light, for as long as you want it to grow and build structure, then switch to 12 hours of light and 12 hours of darkness (12/12) to tell the plant to start flowering. Because every seed grows into a female, there are no males to find and remove, so your whole crop goes toward buds.
The difference from the standard version is speed: once you flip it to 12/12, it finishes in just 6 to 8 weeks rather than the usual nine or more. That makes it a great choice when you want a quick turnaround or several runs in a season. It stays compact at around 1.2 m, so flip it once it has filled your space and use the vegetative stage to top it and spread the canopy.
Climate and Where to Grow It
GG4 Fast Version suits a temperate climate and grows well both indoors and outdoors where it gets good light and a steady season. Because it finishes so fast, its harvest window is flexible, which is why it is listed as an all-season plant: you can flip it indoors whenever you like, and outdoors its quick bloom lets it ripen before autumn damp or even fit an extra run in a warm climate. At a compact 1.2 m it is very easy to manage in a tent or on a balcony.
On yield it is a genuine heavy cropper, around 500-600 g/m² indoors and 600-800 g per plant outdoors, which earns its place among our high-yielding seeds, impressive for such a quick, compact plant. Its energetic, uplifting character sits naturally in our sativa seeds. It comes straight from the classic GG4, now in a faster-finishing form, and the GG4 line also appears in crosses like Blueberry x GG4 if you want a related strain to try. Keep temperatures around 68-80°F (20-27°C) and humidity sensible through flowering.
Feeding Schedule (EC Guide)
GG4 Fast Version is a resinous, heavy-yielding plant that feeds well, but build the nutrients gradually rather than pushing it hard early. Because it flowers fast, make the switch to bloom nutrients promptly after the flip, then flush at the end so the rich chocolate notes come through clean. The ranges below are a starting guide; adjust to your water and medium.
| Stage | EC (mS/cm) | Notes |
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| Seedling | 0.5-0.7 | Very light feed while roots establish |
| Vegetative | 1.0-1.5 | Build nitrogen as the plant grows |
| Early flower | 1.4-1.7 | Switch to bloom nutrients promptly (P and K) |
| Full flower | 1.6-1.9 | Peak bloom feed through its short bloom |
| Flush | 0.0-0.4 | Plain water for the final 1-2 weeks |
Flowering and Harvest
Once you flip it to 12/12, GG4 Fast Version finishes quickly, in about 6 to 8 weeks, which is its biggest advantage. It builds dense, chunky, resin-smothered buds on a compact frame, developing a rich, sweet chocolate aroma over an earthy base as it ripens. That heavy resin and sticky frost are the hallmark of the GG4 line, now in a plant that comes down weeks sooner.
Yields are generous, around 500-600 g/m² indoors and 600-800 g per plant outdoors on a well-fed specimen, excellent for such a quick plant. Keep the colas supported and the canopy open so light reaches the lower buds, feed it steadily through its short bloom, and harvest when most of the trichomes have turned cloudy with a few amber for the fullest chocolate 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, resinous buds, because they can stay damp in the middle while the outside dries, and a gentle dry protects the rich chocolate and earthy aroma that defines the strain.
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 full chocolate character and smooths the smoke, turning a freshly dried harvest into the rich, resinous, full-bodied result the GG4 line is known for.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. GG4 Fast Version is famously sticky and resinous, so its trim is excellent for dry sift, bubble hash or rosin. That heavy resin and rich, chocolatey aroma make the trim genuinely valuable, turning offcuts into a potent, flavorful concentrate run rather than waste.
Flavor and Terpenes
GG4 Fast Version leads with a rich, sweet chocolate flavor over an earthy base, the kind of deep, resinous taste that made the GG4 line famous. It is a smooth, full-bodied smoke, and a good cure brings that chocolate character forward in the jar and on the inhale, with the earthy depth underneath.
Its terpene profile frames that flavor. Caryophyllene adds a peppery, spicy edge that ties in the resinous character, while myrcene forms an earthy base underneath. Humulene brings an earthy, hoppy note and alpha-pinene a fresh, piney lift. The sweet chocolate itself comes through from the GG4 genetics, and these terpenes give the earthy, spicy depth around it.
Effects and Best Use
With its medium 19-22% THC and sativa-leaning 60/40 make-up, GG4 Fast Version delivers a bright, well-rounded experience. It is reported as creative, euphoric and relaxed, pairing an uplifted, inspired head with a comfortable body. The medium potency makes it an approachable, manageable choice, including for less experienced smokers who prefer a gentler strength.
That creative, euphoric, relaxed profile makes it a versatile strain for daytime or social use, alongside its rich chocolate flavor. The combination of a quick finish, a heavy yield and the classic GG4 taste is exactly why this Fast Version is such a practical, rewarding feminized strain.
Common Problems and Pro Tips
GG4 Fast Version is forgiving and beginner-friendly, but its dense, resin-packed buds and quick schedule are the two things to plan for. Those sticky colas can trap moisture, so keep the air moving and ease the humidity down as the flowers fill out. Because it flowers so fast, stay on top of the switch to bloom nutrients right after the flip so it does not run short during its short bloom.
At a compact 1.2 m it is easy to handle, and gentle, low-stress training during veg opens the canopy so light reaches every bud site. Do your topping and training early, while the plant is still growing, and remember that its fast finish means you have less time to fix problems, so start it healthy and keep conditions steady from the flip onward.
As a pro tip, make the most of its speed and resin: get the bloom feed dialed in early, protect the chocolate terpenes with a proper plain-water flush and a full three to four week cure, and save the sticky trim for concentrates. Harvest when most trichomes are cloudy with a few amber for a rich, potent result from this quick, high-yielding plant.

FAQ
Is GG4 Fast Version an autoflower?
No. GG4 Fast Version is a photoperiod feminized strain, not an autoflower, so it flowers when you switch it to a 12/12 light cycle rather than by age. The difference is that it has been bred to finish faster than the standard version, in about 6 to 8 weeks, while still giving you full control over its size and timing.
How much THC does GG4 Fast Version have?
GG4 Fast Version is a medium-potency strain, testing from about 19% up to 22% THC depending on the phenotype and how it is grown. Combined with its sativa-leaning 60/40 genetics, the result is a creative, euphoric, relaxed effect. That moderate strength makes it an approachable choice, including for less experienced smokers who prefer a gentler experience.
How long does GG4 Fast Version take to flower?
This is its biggest advantage: GG4 Fast Version finishes in just 6 to 8 weeks of flower once you switch it to a 12/12 light cycle, weeks sooner than the standard version. That quick turnaround, paired with its compact size, makes it ideal for fast indoor cycles or for fitting a run into a shorter outdoor season.
What does GG4 Fast Version taste like?
It has a rich, sweet chocolate flavor over an earthy base, the classic resinous taste of the GG4 line. Caryophyllene adds a peppery edge, myrcene and humulene bring the earthiness, and alpha-pinene keeps it fresh. A proper three to four week cure brings that chocolate character forward on the inhale, smooth and full-bodied.
How much does GG4 Fast Version yield?
GG4 Fast Version is a heavy producer, giving around 500-600 g/m² indoors and 600-800 g per plant outdoors, which is impressive for such a quick, compact plant. Give it good light, steady feeding, an open canopy and support for the dense colas to get the most from its sticky, resinous buds.
Is GG4 Fast Version indica or sativa?
GG4 Fast Version is sativa-leaning, at a 60/40 split, so it grows with a touch of sativa reach while staying compact at around 1.2 m. That balance shows in its creative, euphoric, relaxed effect, an upbeat, inspired character that makes it versatile for daytime or social use.


