GG#4

GG#4 Feminised Cannabis Seeds by BSF Seeds

GG#4 is a resin-drenched feminised cannabis seed from BSF Seeds that descends from three heavyweight parent strains: Chem Sis, Sour Dubb, and Chocolate Diesel. That triple-cross lineage gave her a 70% sativa genetic profile, a terpene cocktail that leans earthy and chocolatey, and a trichome coverage so dense your trimming scissors will be glued shut within minutes — which is exactly how she got her name. If you want a plant that looks as good as she smokes, this is the one to grow.

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

GG#4 earned her reputation by producing flowers so sticky with resin that harvesting becomes a two-pair-of-gloves job. We've sold seeds from dozens of banks over the years, and the feedback on this BSF Seeds cut is consistent: growers love the colour range. You'll see shades of purple, orange, green, and yellow across the same plant — a proper light show under an HPS or full-spectrum LED. The trichome density is not just cosmetic either. That thick resin layer holds a high THC content, and the leftover scissor hash from trimming is potent enough to save.

The terpene profile is where GG#4 really stands apart from your average sativa-leaning hybrid. Expect earthy, acidic notes layered with a distinct chocolate undertone — almost like dark cocoa mixed with damp forest floor. It's a flavour that lingers on the palate. According to a study published in PMC, beta-myrcene — a terpene commonly found in cannabis — has been noted for significant anti-inflammatory and anticatabolic effects in human chondrocytes (PMC, 2024). GG#4's terpene-rich resin production makes her a particularly interesting variety from a phytochemical standpoint.

One honest note: the 70% sativa genetics mean she can stretch during flower. If you're working with limited vertical space — say a 120cm tent — you'll want to flip to 12/12 early or apply some low-stress training. She's not unmanageable, but she's not a compact indica bush either. Plan your canopy accordingly.

GG#4 Genetics and Lineage

GG#4 was bred from a deliberate cross of Chem Sis, Sour Dubb, and Chocolate Diesel — three strains that each bring something distinct to the table. Chem Sis contributes the chemical pungency and resin production. Sour Dubb adds a sour, diesel edge and structural vigour. Chocolate Diesel rounds it out with that signature cocoa flavour and a sativa-dominant growth pattern. The result is a 70/30 sativa-indica split that leans cerebral in its effects while still producing dense, frosty flowers.

This BSF Seeds version stays true to the original breeding project. BSF (Bulk Seed Factory) is a Spanish seed bank that focuses on producing reliable feminised genetics at accessible price points. Their GG#4 maintains the sticky, colourful phenotype that made the strain famous in the US market, where she quickly became a staple in dispensaries on both the medical and recreational sides.

Growing GG#4 Feminised Seeds

GG#4 is a straightforward grow for anyone with a few cycles under their belt, and manageable for newcomers who do a bit of reading first. The sativa-dominant genetics mean she'll stretch noticeably in the first 2–3 weeks of flower — expect her to roughly double her vegetative height. Indoors, topping once during veg and applying low-stress training (LST) to open up the canopy will keep her within a reasonable height while maximising light penetration to those lower bud sites.

She responds well to both soil and hydro setups. In soil, the terpene expression tends to be richer — that chocolate and earth flavour comes through more clearly. In hydro, you'll see faster vegetative growth and potentially larger yields, but keep your EC in check; she can be a moderate feeder and doesn't love being overfed in early flower.

The trichome production is genuinely impressive. By week 5–6 of flower, the buds and surrounding sugar leaves will be visibly frosted. This is the strain that'll convince you to invest in a proper set of trimming scissors and a collection tray — the resin that builds up on your tools is worth keeping.

1. Germinate your GG#4 seeds using the paper towel method or directly in a propagation plug. Keep temperatures between 22–26°C and humidity around 70%.
2. Transplant seedlings into their final containers once they've developed 2–3 sets of true leaves. A 15–20 litre pot works well for indoor grows.
3. Top the main stem once above the 4th or 5th node to encourage lateral branching. Apply LST by gently bending branches outward and securing them.
4. Maintain 18/6 light cycle during veg. Switch to 12/12 when the plant reaches roughly half your desired final height — she'll stretch during the flip.
5. During flower, keep relative humidity below 50% to protect those dense, resin-coated buds from mould. Increase airflow with oscillating fans.
6. Flush with plain water for the final 1–2 weeks before harvest to improve flavour and smoothness.
7. Harvest when trichomes show a mix of milky and amber under a jeweller's loupe. Dry in a dark room at 18–21°C with 55–60% humidity for 7–10 days, then cure in glass jars for at least 2 weeks.

Flavour, Aroma, and Terpene Profile of GG#4

GG#4 produces a rich, layered flavour that hits earthy and acidic on the inhale, then finishes with a smooth chocolate note on the exhale. It's not subtle — the taste fills the room and stays on your tongue. The aroma during late flower is equally bold: a pungent mix of diesel fuel, damp soil, and cocoa that your carbon filter will earn its keep containing.

The terpene profile is dominated by beta-myrcene, beta-caryophyllene, and limonene. According to research published in PMC, essential oils rich in these terpene compounds have shown anti-inflammatory potential in laboratory settings, with researchers exploring their effects on key enzymes involved in inflammatory pathways (PMC, 2023). While these are in-vitro findings and not direct health claims about the plant, the terpene richness of GG#4 is part of what makes her so appealing to growers who value flavour complexity.

If you've grown strains like OG Kush or Sour Diesel, GG#4 sits in a similar aromatic neighbourhood but adds that distinctive chocolate layer that neither of those offer. It's the chocolate that makes people remember this strain.

GG#4 Compared to Similar Strains

GG#4 isn't the only resin-heavy sativa hybrid on the shelf. Here's how she stacks up against two other popular choices we carry:

We'd pick GG#4 over the other two if visual appeal and resin quantity are your priorities. The purple-orange-green colour palette on a well-grown GG#4 is genuinely striking — the kind of plant you photograph before you harvest. If you want a more balanced indica-sativa effect, OG Kush is the better shout. For pure daytime energy, Sour Diesel edges ahead. But for the full package of looks, flavour, and resin? GG#4 wins.

What to Watch Out For

No strain is without its quirks, and GG#4 has a couple worth knowing about. First, the stretch. With 70% sativa genetics, she can gain serious height during the flowering transition. If you're growing in a tent with 180cm of headroom, start the 12/12 flip when she's no taller than 60–70cm. Second, the resin. Yes, it's a selling point — but it also means dense, sticky buds that are magnets for mould if your humidity creeps above 55% during late flower. Invest in a decent hygrometer and keep the air moving.

Third, and this is more of a practical note than a flaw: trimming GG#4 is slow work. The trichome coverage extends well onto the sugar leaves, and everything sticks to everything. Budget extra time for your trim session, keep a jar of isopropyl alcohol nearby for your scissors, and collect every bit of residue — it makes excellent scissor hash.

Frequently Asked Questions

Last updated: April 2026