Feminized Collection #4 Advanced Seeds – Jack Plant, Kali 47 & OG Kush SFV – Premium Sativa-Hybrid Strains for High Yield and Potency

Advanced Seeds' Feminized Collection #4 delivers three powerhouse strains—Jack Plant, Kali 47, and OG Kush SFV—engineered for maximum yield, potency, and flavor, making it a top choice for serious growers.

Still stuck with underperforming plants that barely impress in flavor or effect? You're not alone. Many growers waste time and space on genetics that promise big but deliver mediocre buds, weak highs, and frustrating mold issues. It’s exhausting to invest weeks into a grow only to end up with airy, flavorless flowers that don’t even pass the sniff test.

That lackluster experience doesn’t just waste your harvest—it kills the excitement of growing. You miss out on that deep sense of pride when you hold dense, resin-coated buds you cultivated yourself. No rich aroma filling the room. No smooth, potent smoke that actually hits right. Just disappointment.

Now imagine opening your tent to towering Jack Plants with massive sativa colas, Kali 47’s sweet caramel-scented flowers, and OG Kush SFV’s rock-hard, pine-drenched buds glistening with trichomes. This collection transforms your grow from a gamble into a guaranteed win—delivering explosive yields, THC levels up to 24%, and flavors so bold they dominate the room. With mold resistance and stable genetics, you finally grow with confidence, not stress.

What It Feels Like to Grow These Strains

From the first sprout, you’ll notice how vigorous these feminized seeds are. Jack Plant stretches tall and fast, perfect for SOG setups, while Kali 47 stays compact with dense branching—ideal for small spaces. OG Kush SFV surprises with its robust structure and rapid flowering, packing weight fast. Indoors, you’ll love how they respond to light pruning and LST, filling every inch with bud sites. Outdoors, they thrive in Mediterranean climates, reaching up to 5.0 m (16.40 ft) and shrugging off humidity. The smell? Intense. You’ll need a strong carbon filter—especially with OG Kush SFV’s pungent pine-lemon punch that lingers for days.

How to Squeeze the Most from Your Grow

Maximize your harvest with these pro tips:

• Start all three in 7 L (1.85 gal) pots and transplant early to final containers to avoid root stress.
• Use Kit Hesi Starterbox Soil for a balanced nutrient base during early growth.
• Apply light topping or LST during pre-flower to boost colas—especially effective on Jack Plant and OG Kush SFV.
• Switch to 12/12 lighting early if you want to control height indoors.
• Flush nutrients 7–10 days before harvest to enhance flavor and smoothness.
• Harvest OG Kush SFV when trichomes turn mostly milky with slight amber for a balanced high.
• Pair with Power Roots at transplant to supercharge root development and nutrient uptake.

Advantages and Benefits in Your Grow Room

• High THC (up to 24%) means stronger, longer-lasting effects without needing to consume more.
• Dense, resinous buds make these strains perfect for extractions and concentrates.
• Mold resistance reduces risk in humid environments, giving you peace of mind during flowering.
• Short flowering cycles (55–70 days) let you harvest faster and start new grows sooner.
• Massive yields up to 550 g/m² (1.94 oz/ft²) mean more bud per square meter—ideal for commercial or frequent users.
• Distinctive aromas—from sweet caramel to gassy pine—elevate your smoking experience every time.

How These Strains Fit Into Your Grow Setup

These feminized genetics integrate seamlessly with your existing gear. Use them with LED full-spectrum lights for optimal resin production, especially during flowering. They pair perfectly with Agrobeta Flowering Black Line to fuel dense bud formation. In soil or coco, they thrive with proper pH (6.0–6.5) and consistent watering. Their strong structure supports trellising, making them ideal for SCROG or screen setups. Whether you're running a small closet or a full tent, these strains adapt and dominate.

Technical specifications

• Breeder / Brand: Advanced Seeds
• Type: Feminized seeds
• Strains included: Jack Plant, Kali 47, OG Kush SFV
• Jack Plant dominance: Sativa-dominant hybrid
• Kali 47 dominance: Sativa-dominant hybrid
• OG Kush SFV dominance: Indica-dominant hybrid
• Jack Plant genetics: Jack Herer × Indica
• Kali 47 genetics: Kali Mist × AK-47
• OG Kush SFV genetics: OG Kush × Afghani
• Flowering time: 55–70 days
• Indoor yield: 450–550 g/m² (1.65–2.02 oz/ft²)
• Outdoor yield: 450–600+ g/plant (1.59–2.12+ lb/plant)
• Indoor height: 70–150 cm (27.56–59.06 in)
• Outdoor height: 2.0–5.0 m (6.56–16.40 ft)
• Harvest (N. Hemisphere): October 1–30
• Difficulty: Medium
• Structure: Columnar to medium branching, vigorous stretch
• Ideal climate: Mediterranean, temperate
• Resistance: High resistance to mold and pests
• Training: Suitable for LST, topping, SCROG; avoid aggressive pruning
• Recommended pot: 7–11 L (1.85–2.91 gal) final pot
• Light cycle: 18/6 (veg), 12/12 (flower)
• Temperature: 22–26 °C (71.6–78.8 °F) veg, 20–25 °C (68–77 °F) flower
• Humidity: 50–60% veg, 40–50% flower
• pH: 6.0–6.5 (soil)
• Smell in grow: High – carbon filter recommended
• THC: 19–24%
• Aromatic profile: Pine, lemon, earth, sweet caramel
• Flavor: Citrus, gassy, terpy, sweet
• Effect: Balanced to relaxing, cerebral to full-body, ideal for evening use

How to grow Feminized Collection #4 Advanced Seeds

Get the most from these high-performance strains with a simple, effective grow plan.

Quick overview: Feminized photoperiod strains from Advanced Seeds · 55–70-day flowering · Medium difficulty · Ideal for indoor SOG or outdoor Mediterranean grows.

Safe start: Germinate seeds in a moist, dark environment at 22–25 °C (71.6–77 °F). Transplant carefully once the taproot reaches ~1 cm (0.39 in). For a faster start, SeedBooster Plus germination stimulator boosts root strength and early growth.

Stable seedling: Keep humidity at 60–70% and use gentle lighting. Water lightly and ensure excellent drainage. Introduce MYCOPLANT early to build a resilient root microbiome and prevent damping-off.

Directed growth: Switch to 18/6 light cycle. Use airy soil and 7–11 L (1.85–2.91 gal) pots. Apply light LST to spread canopy. Avoid overfeeding—start with low EC and increase gradually.

Flowering by stages: Flip to 12/12 to trigger bloom. In early flowering, maintain 50–60% RH. Mid-flower: reduce to 40–50%, support heavy colas, and boost with bloom additives. Late flower: flush 7–10 days before harvest.

Harvest, drying and curing: Harvest when trichomes are milky to amber. Dry slowly at 18–22 °C (64.4–71.6 °F) and 50–60% RH. Cure in jars for 2–4 weeks, burping daily for maximum flavor and smoothness.

Frequently Asked Questions

What is the flowering time for these feminized strains?

Flowering lasts 55–70 days depending on the strain: Kali 47 (55–65), OG Kush SFV (60–65), and Jack Plant (60–70).

Are these strains suitable for beginners?

They’re medium difficulty—best for growers with some experience. However, their mold resistance and stable genetics make them forgiving if you follow basic care guidelines.

Do I need a carbon filter for odor control?

Yes. These strains produce strong aromas, especially OG Kush SFV. A carbon filter is highly recommended to manage odor during flowering.

Can I grow these outdoors in a colder climate?

They prefer warm, sunny conditions. While they tolerate some temperature drops, prolonged cold or rain increases mold risk. Use in Mediterranean or temperate zones for best results.

How much yield can I expect per plant outdoors?

Under optimal conditions, expect 450–600+ grams (1.59–2.12+ lb) per plant, with Jack Plant reaching the highest potential.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown all three strains from this collection over two seasons, and they’ve become my go-to for reliable, high-impact harvests. Jack Plant is a monster—indoors, I trained it with SCROG and got 520 g (18.34 oz) from just 9 plants in 11 L pots. The sativa buzz is uplifting but not anxiety-inducing, perfect for weekend creativity. Kali 47 surprised me with how fast it finished—just 57 days—and that sweet, candy-like aroma fills the room even after curing. But OG Kush SFV? That’s the star. Dense, rock-hard buds, insane trichome coverage, and a flavor that’s both earthy and sharp. I use it for evening wind-down, and the body relaxation is deep without being couch-lock. Pro tip: don’t rush the harvest. Wait until 20% of trichomes turn amber for a smoother, more balanced effect. Pair it with Top Max BioBizz in week 4 of flower to boost resin production even further.