Dark Cookie Feminized Seeds – Dr Underground’s Indica-Dominant Hybrid with Cookie Genetics · GSC x OG Kush

Dark Cookie feminized seeds by Dr. Underground offer a premium indica-dominant hybrid experience, blending the legendary Girl Scout Cookies with Original OG Kush for deeply relaxing effects and luxurious flavor.

Struggling to find a strain that truly melts away stress without knocking you out completely? You’ve probably tried indica-heavy varieties that left you couch-locked or hybrids that lacked depth in flavor and effect. The search for balance—something potent yet smooth, sedating but not stupefying—can feel endless.

Most so-called “relaxing” strains fall short: weak potency, inconsistent growth, or forgettable taste. Some smell artificial, others grow wild and unmanageable. You end up wasting time, space, and energy on underperforming plants that don’t deliver the calm you need after a long day.

Dark Cookie is the answer. This carefully crafted cross of Girl Scout Cookies (Thin Mint cut) and Original OG Kush (Tahoe cut) delivers exactly what discerning growers and consumers want: a smooth, full-body relaxation with a complex aroma and reliable performance. It’s not just another cookie clone—it’s a refined evolution.

Deep Relaxation Without the Crash

Dark Cookie wraps you in a soothing wave of calm that starts in the mind and sinks into the muscles. It’s perfect for unwinding in the evening, easing tension, and quieting a busy mind. Unlike heavy sedatives, it keeps you lucid enough to enjoy music, movies, or deep conversation—just at a slower, more peaceful pace.

How to Grow Dark Cookie Feminized Seeds for Maximum Flavor and Yield

1. Start with high-quality germination: soak seeds in moist paper towel at 22–25 °C (71.6–77 °F) until the taproot emerges (~24–72 hours).
2. Transplant carefully into 3–7 L pots initially, using well-aerated soil or coco; avoid overwatering seedlings.
3. Move to final pots of 11–20 L (2.4–4.4 gal) before flowering; this strain responds well to low-stress training (LST) to control height and boost light exposure.
4. Switch to 12/12 light cycle to initiate flowering; maintain temperatures between 20–25 °C (68–77 °F) and humidity at 40–50% in mid to late bloom.
5. Feed with a balanced flowering nutrient regimen rich in phosphorus and potassium; consider adding SensiZym Advanced Nutrients to enhance resin production and terpene development.
6. Harvest when trichomes turn mostly milky with some amber for a balanced, relaxing effect; flush 7–10 days prior to harvest for a smoother smoke.

Key Advantages and Benefits of Dark Cookie Feminized Seeds

• Because it’s a feminized indica-dominant hybrid, you can grow with confidence knowing nearly every plant will be bud-bearing, which means maximum yield and no wasted space on males.
• With genetics from Girl Scout Cookies and OG Kush, you get a complex aroma profile of earth, mint, and chocolate, which means a deeply satisfying sensory experience with every harvest.
• Thanks to its dense bud structure and heavy trichome coverage, you can expect potent effects and high resin production, which means more extract per gram and a frosty, premium look.
• With THC levels ranging from 18% to 24%, you can enjoy strong psychoactive effects, which means effective relaxation for stress, tension, and sleep support.
• As a strain with moderate yield and reliable flowering time, you can plan your grow cycle efficiently, which means consistent results and less guesswork.
• Due to its resistance to mold and pests when grown in controlled conditions, you can reduce crop loss, which means a healthier harvest with less intervention.
• With a flowering time of approximately 63 days indoors, you can go from seed to harvest in under 10 weeks, which means faster turnover and more grows per year.

Technical specifications

• Breeder / Brand: Dr Underground
• Type: Feminized
• Dominance: Indica-dominant hybrid (approx. 75% indica)
• Genetics / Cross: Girl Scout Cookie (Thin Mint Cut) × OG Kush (Tahoe Cut)
• Flowering time: 63 days (approx. 9 weeks) indoors
• Outdoor harvest: Late September to mid-October (Northern Hemisphere)
• Indoor yield: 150–350 g/m² (5.3–12.3 oz/ft²)
• Outdoor yield: Up to 500 g/plant (17.6 oz/plant) under optimal conditions
• Indoor height: 80–110 cm (2.62–3.61 ft)
• Outdoor height: 1.20–1.50 m (3.94–4.92 ft)
• Difficulty: Medium
• Structure and vigour: Compact, dense branching with strong lateral development
• Training: Suitable for LST, topping, and SCROG; avoid aggressive pruning
• Recommended pot: 11–20 L final pot for photoperiod growth
• Substrate: High-quality soil or coco with excellent drainage
• Light: 18/6 in veg, 12/12 in flowering
• Temperature: 22–26 °C (71.6–77 °F) in veg, 20–25 °C (68–77 °F) in flowering
• Humidity: 60–70% seedling, 50–60% veg, 40–50% flowering
• pH: 6.0–6.5 (soil), 5.8–6.2 (coco/hydro)
• Smell in grow: Medium to high; a carbon filter is recommended
• THC: 18–24% (approx.)
• CBD: 1–2% (approx.)
• Aromatic profile: Myrcene, caryophyllene, limonene
• Flavour: Earthy, chocolate, mint, caramel, subtle spice
• Effect: Balanced cerebral onset followed by deep physical relaxation; ideal for nighttime use

Care, maintenance or storage

Store seeds in a cool, dark place at around 6–8 °C (42.8–46.4 °F) to maintain viability. Once grown, keep harvested buds in airtight glass jars, curing at 18–20 °C (64.4–68 °F) and 58–62% RH for 2–4 weeks to preserve terpenes and smoothness.

• Use a digital hygrometer to monitor jar humidity during curing.
• Open jars daily for the first week (burping) to release excess moisture.
• Keep plants well-ventilated during flowering to prevent mold, especially in dense colas.
• Flush with plain water 7–10 days before harvest to improve taste and smoothness.

Frequently Asked Questions

What is the flowering time for Dark Cookie feminized seeds?

Dark Cookie has a flowering time of approximately 63 days (9 weeks) indoors when grown under a 12/12 light cycle.

Is Dark Cookie good for beginners?

With a medium difficulty level, it’s best suited for growers with some experience. It requires attention to humidity and nutrient balance but rewards care with high-quality yields.

What does Dark Cookie smell and taste like?

It has a rich aroma of earth, chocolate, and mint, with spicy undertones. The flavor mirrors the nose—sweet, earthy, and slightly spicy, like fresh-baked cookies with a herbal twist.

Can I grow Dark Cookie outdoors in a temperate climate?

Yes, it thrives in temperate to Mediterranean climates. Harvest is typically late September to mid-October in the Northern Hemisphere, so ensure a stable, dry finish to avoid mold.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Dark Cookie last season in my 1.2 m² (12.9 sq ft) tent with LED lighting, and it was one of the most satisfying grows I’ve had in years. The plants stayed compact—around 90 cm (35.4 in)—but packed on dense, resin-heavy buds by week 8. I used low-stress training to spread the canopy, and it paid off with even light distribution. The aroma during flowering was incredible: deep chocolate and pine, like a bakery in the woods. I ran a carbon filter, but neighbors still commented on the ‘nice smell’ from my balcony. The high is smooth and grounding—perfect after a long day. My only tip: don’t rush the harvest. Wait for that amber trichome shift for maximum relaxation. I’d definitely grow it again, maybe next time trying it in Bio Grow BioBizz for an organic twist.