GG#4

GG#4 Auto Cannabis Seeds by Blimburn Seeds

GG#4 Auto is an autoflowering cannabis seed from Blimburn Seeds that packs the resinous, terpene-drenched character of the original Gorilla Glue #4 into a compact, fast-finishing plant. Blimburn's breeding team crossed their GG#4 photoperiod cut with a high-yielding ruderalis line, and the result is a seed that goes from germination to harvest in 8–10 weeks flat — no light-schedule fiddling required. If you want sticky, 24% THC flower without babysitting a photoperiod grow, this is where you start.

Why GG#4 Auto Seeds Deserve a Spot in Your Grow

The original GG#4 earned its reputation for a reason: resin production so heavy the buds practically glue your scissors shut. Blimburn Seeds kept that trait intact while breeding in ruderalis genetics that make the whole process faster and more forgiving. These plants veg for a few weeks on their own clock, then flip to flower automatically — no 12/12 switch, no timer mishaps, no lost weeks because you forgot to tape a light leak.

We'd pick GG#4 Auto over a photoperiod GG#4 if you're working with a small tent (think 60x60 or 80x80) or running a balcony grow where discretion matters. Plants stay under 100 cm on average, which means you're not fighting headroom or training branches away from your light. The uniform growth habit also makes this strain a strong candidate for Sea of Green (SOG) setups — pop several seeds, let them do their thing, and fill your canopy without hours of topping and tying.

The honest limitation? Autoflowers don't give you the same control as photoperiods. You can't extend veg to recover from early mistakes, and you can't take clones that'll perform the same way. If you stress a GG#4 Auto seedling hard in the first two weeks, you'll feel it at harvest. Treat her gently early on and she'll reward you.

What GG#4 Auto Buds Look, Smell, and Taste Like

Expect dense, dark green buds that stack tightly along multiple side branches. In cooler night temperatures — below about 15°C during late flower — GG#4 Auto can develop striking pink-to-purple hues across the calyxes and sugar leaves. The trichome coverage is heavy enough that trimming becomes a two-pair-of-scissors job. That's not marketing fluff; the "glue" in the name comes from real-world stickiness.

The terpene profile reads like a spice rack: humulene, pinene, caryophyllene, myrcene, and limonene all show up in high concentrations. In practice, that translates to a nose that hits you with sweet fruit first, then rolls into earthy pine and a peppery, almost diesel-like finish. The smoke mirrors the smell — fruity and sweet on the inhale, spicy and lingering on the exhale. According to research published in PMC, beta-myrcene — one of the dominant terpenes in this strain — has demonstrated anti-inflammatory and anticatabolic effects in human chondrocytes (PMC11085560). And a review in PMC noted that caryophyllene shows promise in reducing uncontrolled inflammatory cascades via targeted signalling pathways (PMC10706820). Worth knowing, though these are lab findings — not product claims.

Growing GG#4 Auto Seeds: What to Expect

GG#4 Auto is one of the more straightforward autoflowers we've come across. Blimburn Seeds bred this line for uniformity, which means less pheno-hunting and more predictable results across a batch. Here's how to get the most out of your seeds.

1. Germinate your GG#4 Auto seeds using the paper towel method or directly in a small pot of light, airy soil. Taproot usually shows within 24–72 hours.
2. Transplant seedlings into their final container early — 11–15 litre pots work well. Autoflowers don't love being repotted mid-grow, so skip the intermediate pot stage.
3. Run 18–20 hours of light throughout the entire cycle. Unlike photoperiods, GG#4 Auto doesn't need a 12/12 flip. More light hours means more energy for bud production.
4. Keep feeding light during veg (first 3–4 weeks). These plants are compact and don't need heavy nitrogen. Switch to a bloom-focused feed once you see the first pistils forming.
5. Maintain temperatures between 20–26°C during the day. If you want those purple hues, drop nighttime temps to 14–16°C during the last two weeks of flower.
6. Harvest when roughly 70–80% of trichomes have turned milky with a few amber heads. Most GG#4 Auto plants are ready 8–10 weeks after germination.

GG#4 Auto Yield and Performance

GG#4 Auto can produce up to 600 g/m² indoors under optimal lighting (a proper LED or 400W+ HPS in a well-ventilated tent). Outdoors, in a sunny Mediterranean or greenhouse setup, individual plants can reach up to 750 g/plant — though that's the ceiling, not the average. Realistically, a first-time grower in a basic 80x80 tent should expect 350–450 g/m², which is still excellent for an autoflower that finishes in under 10 weeks.

The plants stay under 100 cm tall, with several strong side branches that develop naturally without much training. Low Stress Training (LST) works well if you want to open up the canopy and expose lower bud sites to light, but it's not strictly necessary. The compact size and fast turnaround make GG#4 Auto a solid choice for perpetual harvest setups — stagger your germination dates and you can pull a fresh crop every few weeks.

GG#4 Auto vs Photoperiod GG#4 Seeds

This is the question we get asked most. Here's how they stack up side by side.

The auto version sacrifices a bit of ceiling yield and a couple of THC percentage points in exchange for speed, simplicity, and a smaller footprint. For most home growers, that's a trade worth making.

Terpenes and Cannabinoids in GG#4 Auto

At 24% THC, GG#4 Auto sits firmly in the heavy-hitter category. The terpene profile is where things get interesting for flavour chasers. Five terpenes dominate: myrcene (earthy, musky — the most abundant terpene in most cannabis strains), limonene (citrus zing), caryophyllene (peppery, the only terpene that also binds to CB2 receptors), pinene (fresh pine), and humulene (woody, hoppy). That combination creates a complex, layered smoke that evolves from sweet to spicy across a session.

Research into cannabis terpenes is still in its early stages, but the available evidence is promising. According to a review in PMC, cannabis seeds and their associated compounds represent "a promising yet underexploited source of phenolic compounds with potential applications" in various fields (PMC12990579). And a separate PMC review noted that cannabis-derived compounds are being re-examined for their role in managing chronic neuropathic pain, a condition that remains difficult to treat with conventional approaches (PMC10707504). These are research-level observations — not reasons to self-medicate.