GG-48 Auto (Nirvana)
Cannabis seeds
by Nirvana Seeds
GG-48 Auto by Nirvana Seeds — Gorilla Glue Meets AK48 in a 10-Week Auto
GG-48 Auto is a 65% sativa-dominant autoflowering cannabis seed from Nirvana Seeds that crosses the resin-heavy US classic Gorilla Glue with Nirvana's own AK48 — a proven yielder with a reputation for sticky, trichome-loaded buds. The result is an auto that doesn't ask you to compromise: 23–28% THC, 500–600 g/m² indoors, and a seed-to-harvest window of roughly 10 weeks. If you've ever written off autos as lightweight, this one will change your mind.
GG-48 Auto is available in packs of 5 feminised autoflowering seeds. Every seed is female — no need to sex your plants or worry about pollination.
GG-48 Auto Genetics — Why This Cross Works
Gorilla Glue (GG#4) became a legend in the US for a reason: absurd resin production, a complex terpene profile, and potency that regularly tests above 25% THC. AK48, Nirvana's own hybrid, brings the other half of the equation — reliable structure, heavy yields, and a flowering speed that made it a favourite among commercial growers long before autos were taken seriously. Crossing these two and then breeding in ruderalis genetics for the auto trait gives you GG-48 Auto: a plant that inherits the frost and flavour of Gorilla Glue with the structural discipline and productivity of AK48.
The sativa dominance (65%) shows up in the growth pattern. These plants stretch a bit during the transition into flower, which means you get decent vertical reach — up to 120 cm at full maturity — without the unruly branching that makes some sativas a nightmare indoors. The indica side keeps the buds dense and the internodal spacing tight. It's a well-balanced frame that works in a 60x60 tent or an outdoor pot on a sunny balcony.
GG-48 Auto Growing Specifications
| Specification | Detail |
|---|---|
| Seed Bank | Nirvana Seeds |
| Genetics | Gorilla Glue x AK48 x Ruderalis |
| Type | Feminised Autoflowering |
| Sativa / Indica | 65% Sativa / 35% Indica |
| THC Content | 23–28% |
| Seed-to-Harvest | ~10 weeks |
| Vegetative Phase | 4–5 weeks |
| Flowering Phase | 4–5 weeks |
| Height (Indoor) | 100–120 cm |
| Indoor Yield | 500–600 g/m² |
| Outdoor Yield | Variable (depends on pot size and climate) |
| Seeds per Pack | 5 |
Aroma and Flavour Profile of GG-48 Auto
Here's where the Gorilla Glue parentage really announces itself. During the final weeks of flower, GG-48 Auto plants throw off a heavy, almost oily scent — fresh and floral on top, with woody and earthy undertones sitting underneath. Crack a cured bud open and you'll notice a spicy kick that lingers on your fingers. It's not a one-note strain; the terpene complexity is closer to what you'd expect from a photoperiod Gorilla Glue cut than a typical auto.
After a proper dry and cure — and we'd say give it at least two weeks of curing, three if you can stand the wait — the aroma settles into woody overtones layered with floral hints and a spicy, earthy base. The nose translates well to taste. If you've grown Gorilla Glue before, you'll recognise the family resemblance immediately. The AK48 side smooths things out slightly, adding a subtle sweetness that pure GG lines sometimes lack.
One honest note: if you're growing indoors without a carbon filter, your neighbours will know about it. This strain is loud from week 6 onwards. Budget for proper extraction and filtration — it's not optional with GG-48 Auto.
How to Grow GG-48 Auto Seeds
- Germination: Soak seeds in a glass of room-temperature water for 12–24 hours, then transfer to damp kitchen paper between two plates. Most seeds crack within 48 hours. Plant taproot-down into your final pot — autos don't like transplanting, so skip the seedling pots and go straight into your 11–15 litre container.
- Vegetative phase (weeks 1–5): Run your lights at 18/6 or 20/4. GG-48 Auto isn't fussy about light schedules since it flowers based on age, not photoperiod. Keep temperatures between 22–26°C and humidity around 60–65% during veg. These plants develop thick, luscious green foliage — a sign of the AK48 genetics doing their job. Light feeding during this stage; don't push nitrogen too hard.
- Transition and flowering (weeks 5–10): You won't need to flip your lights — the plant handles that on its own. Once you see the first pistils forming, switch to a bloom nutrient schedule. GG-48 Auto plants will stretch a bit during the first two weeks of flower, potentially adding another 20 cm. Support the main cola and any heavy side branches with stakes or ties — those dense buds get heavy.
- Late flower and harvest (weeks 8–10): Towards the end of the cycle, trichome coverage becomes genuinely impressive. The buds pack on weight and the resin production goes into overdrive — this is the Gorilla Glue showing through. Check trichomes with a jeweller's loupe: harvest when most are milky with around 10–20% amber, depending on your preference. Flush for the final 7–10 days if growing in soil.
- Drying and curing: Hang whole plants or individual branches in a dark room at 18–20°C with 55–60% humidity for 10–14 days. Trim, jar, and burp daily for the first week of curing. The terpene profile develops significantly between weeks 2 and 3 of cure.
Why GG-48 Auto Deserves a Spot in Your Grow
We've seen plenty of autos come through the shop over the years. The common complaint used to be that autos sacrificed potency and yield for speed. That was fair criticism five or six years ago. It's not fair criticism of GG-48 Auto. At 23–28% THC and 500–600 g/m² indoors, this strain sits comfortably alongside many photoperiod varieties — and it does it in 10 weeks flat, seed to chop.
The genetics are the reason. Gorilla Glue brings the resin, the potency, and the complex terpene profile. AK48 brings structural reliability and yield. The ruderalis component has been bred in cleanly — you don't get that scraggly, underdeveloped look that plagued early-generation autos. GG-48 Auto plants grow to a manageable 100–120 cm with a solid main cola and productive side branches. They respond well to LST (low-stress training) if you want to open up the canopy, though they'll produce well even if you leave them alone.
The one area where this strain asks for a bit of attention: feeding. The combination of fast growth and heavy resin production means GG-48 Auto is a hungry plant. Underfeeding during mid-flower is the most common mistake we'd flag. Keep your cal-mag topped up, especially under LED lights, and don't be shy with the bloom nutrients once those buds start stacking.
GG-48 Auto Compared to Other Nirvana Autos
| Feature | GG-48 Auto | AK48 Auto | Northern Lights Auto |
|---|---|---|---|
| Genetics | Gorilla Glue x AK48 | AK48 x Ruderalis | Northern Lights x Ruderalis |
| THC | 23–28% | 15–20% | 14–18% |
| Sativa/Indica | 65/35 | 55/45 | 10/90 |
| Indoor Yield | 500–600 g/m² | 400–500 g/m² | 350–450 g/m² |
| Seed to Harvest | ~10 weeks | ~9 weeks | ~9 weeks |
| Aroma | Woody, floral, spicy | Earthy, sweet | Sweet, piney |
| Best For | Growers wanting top-shelf auto potency | Quick, reliable harvests | Beginners, stealth grows |
If you've grown AK48 Auto before and liked the structure and reliability but wished for more punch, GG-48 Auto is the obvious next step. The Gorilla Glue genetics push the THC ceiling significantly higher while keeping the grow profile almost as straightforward. Northern Lights Auto remains the best beginner-friendly option from Nirvana — compact, forgiving, and nearly impossible to mess up — but it can't compete with GG-48 on potency or yield.
Complete your grow setup with a carbon filter and extraction fan — GG-48 Auto gets seriously pungent from week 6 onwards. If you're running a small tent, pair these seeds with a complete grow kit that includes lighting, ventilation, and growing medium so you're not scrambling mid-grow for missing components.
Frequently Asked Questions
How long does GG-48 Auto take from seed to harvest?
Roughly 10 weeks total. The vegetative phase runs about 4–5 weeks, followed by another 4–5 weeks of flowering. Some phenotypes may run a few days longer, but you're looking at harvest around the 70-day mark in most cases.
What yield can I expect from GG-48 Auto indoors?
Indoor growers typically pull 500–600 g/m² under proper lighting. That's exceptional for an auto. Outdoor yields vary depending on pot size, sunlight hours, and climate — use at least a 15-litre pot outdoors for best results.
Is GG-48 Auto suitable for beginners?
It's manageable for beginners, though not the most forgiving auto out there. The plant is a heavy feeder and benefits from proper nutrient management during flower. If it's your very first grow, Nirvana's Northern Lights Auto is more forgiving. But if you've done one or two runs before, GG-48 Auto is absolutely within reach.
Does GG-48 Auto need a specific light schedule?
No. As an autoflower, it flowers based on age, not light cycle. Most growers run 18/6 or 20/4 throughout the entire lifecycle. Some push 24/0, but we'd recommend giving the plants at least 4–6 hours of darkness for recovery.
How tall does GG-48 Auto grow?
Expect 100 cm during veg, stretching to a maximum of around 120 cm by the end of flower. That's tall enough to produce serious yields but short enough for most indoor tents. LST can help keep the canopy even if height is a concern.
What does GG-48 Auto smell like?
Woody and floral on top, with spicy, earthy undertones — classic Gorilla Glue territory. The smell intensifies dramatically during the final weeks of flower. A carbon filter is strongly recommended for indoor grows; this strain is not discreet.
Can I grow GG-48 Auto outdoors?
Yes. It performs well outdoors in warm, temperate climates. Use a large pot (15 litres minimum) and place it where it gets maximum direct sunlight. The 10-week lifecycle means you can time it for a summer harvest in most European climates without worrying about autumn weather.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.