Kong 47 Feminized Seeds by Dr Underground – Brutal Yields & Fast Growth for Indoor/Outdoor

Kong 47 feminized seeds by Dr Underground are your ticket to brutal yields and a knockout Indica high, combining King Kong’s monstrous structure with AK-47’s balanced genetics for a grow that doesn’t play nice—but rewards big.

Are you tired of strains that promise big but fizzle out when it counts?

Most high-yield hybrids demand perfection—any slip in nutrients or light, and your harvest tanks. They stretch too much, snap under their own weight, or get wiped out by mold just before harvest.

Kong 47 isn’t like that. She’s built for war. With the right care, she’ll push past 1200 g/m² indoors and up to 1.5 kg per plant outdoors—without the fragility. This is not a beginner’s plant, but for those ready to step up, she’s a yield machine with a complex, satisfying high.

Massive harvests without sacrificing quality or flavor

Forget compromise—Kong 47 delivers both quantity and premium bud quality. Her dense, resin-coated flowers carry a rich aroma of sweet florals, citrus, and skunk, turning heads and clearing rooms. Whether you're growing for personal use or serious supply, this strain earns its reputation.

Technical specifications

• Breeder / Brand: Dr Underground
• Type: Feminized
• Dominance: Indica-dominant hybrid
• Genetics: Brutal Cut (King Kong) × AK-47 (Serious Seeds)
• Light cycle: Photoperiod (12/12 to flower)
• Flowering time: 52–58 days
• Indoor yield: up to 1200 g/m² (4.25 oz/ft²)
• Outdoor yield: up to 1.5 kg/plant (3.31 lb/plant)
• Outdoor harvest: Early September (Northern Hemisphere)
• Indoor height: 80–110 cm (2.62–3.61 ft)
• Outdoor height: 1.20–1.80 m (3.94–5.91 ft)
• Difficulty: Medium to high (requires experience)
• Vigour: Strong, sturdy, with significant stretch (300%)
• Resistance: Resistant to cold, mold, and fungal diseases
• Training: Responds well to topping, LST, SCROG, and main-lining
• Smell during grow: High – use a carbon filter
• THC: approx. 20–24%
• CBD: approx. 1–2%
• Terpene profile: Myrcene, limonene, pinene (sweet, skunky, citrus notes)
• Effect: Clear, potent Indica high—ideal for nighttime relaxation

How to grow Kong 47 for maximum yield

For a hassle-free start, Root Riot Sponges speed up germination and reduce transplant shock. This strain thrives in soil or coco, but demands high nutrition—especially calcium and magnesium. Use a Ca/Mg booster early to prevent deficiencies. In sustained growth, Medi One organic fertiliser keeps leaves lush and structure strong. During flowering, ensure excellent airflow and keep humidity below 50% to protect her dense buds. At peak bloom, HESI Bloom Complex for Soil boosts resin and flower density. Avoid aggressive pruning—top early and let her stretch.

Frequently Asked Questions

Is Kong 47 suitable for beginners?

No, Kong 47 is best for experienced growers. She’s nutrient-hungry and needs close monitoring, especially during flowering.

Does Kong 47 work well outdoors in temperate climates?

Yes, she excels outdoors in Mediterranean and temperate zones. Harvest is typically early September, and she handles cooler nights well.

How can I prevent nutrient deficiencies?

She’s a heavy Ca/Mg feeder. Use a foliar spray or root supplement early in veg to avoid yellowing leaves and weak stems.

Can I grow Kong 47 indoors with SCROG?

Absolutely. Her strong branching and stretch make her perfect for SCROG setups. Train early to maximize light exposure and yield.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Kong 47 last season in my outdoor plot in southern Spain, and damn—she lived up to the name. I started her in a 25 L pot directly in the ground, fed her hard with organic teas, and topped her twice during early veg. She stretched like a beast—tripled in height—but held strong. No mold, no pests, even during a humid August. I harvested in early September, and after drying and curing, I ended up with over 1.4 kg of dense, sticky bud. The high? Clear, powerful, and deeply relaxing—perfect for unwinding after a long day. Not a strain for the faint of heart, but if you know what you’re doing, she’ll reward you like few others can.