How to Grow GSC x OG Kush Regular
GSC x OG Kush Regular is a grower’s and breeder’s strain: a 70% indica cross of Girl Scout Cookies and OG Kush, sold as regular seeds rather than feminized. That means it produces both male and female plants, which is exactly what makes it valuable for making your own seeds, hunting phenotypes, or keeping classic genetics alive. At 20-25% THC, a compact 4.92 ft, and a heavy yield, the GSC x OG Kush strain pairs two legends with real cultivation flexibility.
This guide covers the full cycle for Girl Scout Cookies x OG Kush regular seeds from Blimburn Seeds, from germination to the cure, with every figure taken from the official datasheet and a clear explanation of what growing regular seeds involves.
Recommended Strains
Girl Scout Cookies x OG Kush Regular
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THC | 20% - 25% (High) |
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Type | Regular |
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Yield | High |
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Phenotype | 70% Indica / 30% Sativa |
OG Kush Regular
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THC | 15% - 20% (Medium) |
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Type | Regular |
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Yield | High |
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Phenotype | 60% Indica / 40% Sativa |
GSC x OG Kush at a Glance
The official numbers first:
| Trait | GSC x OG Kush Regular |
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| Lineage | Girl Scout Cookies x OG Kush |
| Type | Regular (male and female plants) |
| Phenotype | 70% Indica / 30% Sativa |
| THC | 20-25% (high) |
| Flowering time | 8-10 weeks |
| Height | 4.92 ft (1.5 m) |
| Yield indoor | 1.64-2.13 oz/ft² (500-650 g/m²) |
| Yield outdoor | 17.64-28.22 oz (500-800 g) per plant |
| Outdoor harvest | October |
| Climate | Temperate |
| Effects | Euphoric, relaxed |
| Flavors | Citrus, herbal, kush |
Two things stand out. First, the yield is genuinely high for a compact plant, up to 2.13 oz/ft² indoors. Second, and most important, these are regular seeds. The GSC x OG Kush strain is aimed at growers who want males as well as females, whether for breeding, seed production, or selecting a keeper mother, rather than the one-and-done simplicity of feminized stock.
Promos & Deals
The Girl Scout Cookies and OG Kush Parents of GSC x OG Kush
Girl Scout Cookies is one of the most influential strains of the modern era, prized for dense, resin-coated buds, a sweet-and-earthy complexity, and a potent, euphoric effect. It gives this cross much of its 20-25% THC, its chunky bud structure, and the sweeter, citrus-herbal side of the flavor.
OG Kush, the West Coast cornerstone behind countless modern hybrids, contributes the other half: the earthy, piney, unmistakable kush depth, a sturdy and compact frame, and the heavy, relaxed body of the effect. It is also where the strain gets its resilience and its reliable, resinous flowering.
Together they anchor GSC x OG Kush firmly among the catalog’s Kush strains and its potent indica seeds, pairing two of the most important names in contemporary cannabis in a single regular-seed line.
Germinating and Sexing GSC x OG Kush
Germinate with the paper-towel method at 70-79°F. Set the seeds between damp paper towels on a covered plate, keep them dark, and wait for taproots within 24 to 120 hours. Plant each half an inch deep in light, well-draining soil, taproot down.
Here is the key difference from feminized seeds: as a regular line, GSC x OG Kush produces roughly half male and half female plants. Unless you are breeding, you will grow them out, identify the sex of each plant, and remove the males before they release pollen, so your females can finish as seedless, resinous flower.
Males usually show their sex first, revealing small round pollen sacs at the nodes, while females show fine white pistils. Watch closely from the third week of veg or the first days after the flip, and pull males promptly. If you do want seeds, keep a chosen male isolated and pollinate deliberately. Veg under 18 hours of daily light for four to six weeks, and top above the fourth node to spread the canopy.
Growing GSC x OG Kush Indoors
Indoors, the compact 4.92 ft frame and bushy, indica-leaning structure make GSC x OG Kush easy to house, once the males are out. Flip the females to 12/12 when they reach about half their target height; the post-flip stretch is moderate, and flowering completes in 8-10 weeks.
Hold lights-on temperatures at 68-80°F, humidity at 50-60% in veg and 40-45% in bloom. Give the dense canopy good airflow and strong light, and the females reward it with a heavy 1.64-2.13 oz/ft² (500-650 g/m²) of resin-coated, kush-scented flower.
Growing GSC x OG Kush Outdoors
Outdoors, GSC x OG Kush wants a temperate climate: warm summers, mild autumns, and a dry run into its October harvest. In the United States that suits Northern California, Oregon and the Pacific Northwest, and the warmer Mid-Atlantic and Great Lakes, regions with a steady season that finishes before the autumn damp. Each female can return a large 17.64-28.22 oz (500-800 g) of dried flower.
Plant in full sun after the last frost in 15+ gallon containers or amended ground. With regular seeds outdoors, identify and remove males early, both to protect your own females and to avoid pollinating any nearby gardens. The dense, OG-style buds reward good spacing and airflow, with a post-rain shake in humid spells to guard against rot.
Flowering and Buds of GSC x OG Kush
Flowering on the females shows the heritage of both parents: dense, chunky indica buds that firm up through the 8-10 week bloom, often with purple hues where nights run cool, under a heavy coat of OG and Cookies resin. The aroma turns deeply earthy, piney, and kush-forward as they ripen.
Trichome production is heavy, frosting the sugar leaves alongside the flowers. Keep the canopy open and airflow steady; these dense buds hold moisture and reward attention to humidity in the final weeks. If you left a male to make seeds, expect lighter, seeded flower on any pollinated branches, which is normal and intended.
Common Problems and Pro Tips
The defining task with this strain is managing a regular line. Growing out males takes space and time you will not keep, so start more seeds than your final plant count, and be disciplined about removing males the moment you confirm the sex, before any pollen drops. One missed male can seed an entire tent.
Beyond that, the dense indica buds can trap humidity late in bloom, so hold it near 40-45% with steady airflow. Expert tip: use the regular genetics as they were meant to be used. Grow several females, choose the best-performing plant as a mother for clones, or isolate a strong male to make your own GSC x OG Kush seeds. That selection process is the whole point of a regular line.
Feeding and Watering
GSC x OG Kush feeds moderately and supports its heavy yield best with a light hand early and steady phosphorus and potassium later in bloom.
| Stage | EC | pH | Notes |
|---|---|---|---|
| Seedling | 0.4-0.6 | 6.0-6.5 | Plain water or quarter-strength feed |
| Vegetative | 0.8-1.2 | 6.0-6.5 | Nitrogen-forward, add silica for stems |
| Preflower | 1.2-1.4 | 6.0-6.5 | Transition formula at the 12/12 flip |
| Bloom | 1.4-1.6 | 6.0-6.5 | Phosphorus and potassium forward |
| Flush | 0.0-0.4 | 6.0-6.5 | Final 10-14 days, plain water |
Water when the top inch of the medium dries, letting the pot lighten between rounds. Heavy resin production pulls on magnesium in mid-bloom, so answer any interveinal yellowing on older leaves with cal-mag rather than more base feed.
Finish with 10-14 days of plain water at EC 0.0-0.4. The citrus, herbal, kush profile is complex, and a proper flush keeps it clean rather than letting leftover nutrients blunt the finish.
Flavor, Terpenes, and Effects of GSC x OG Kush
The flavor is a three-part blend: bright citrus, a green herbal edge, and the deep, earthy kush base the OG side is known for. A broad terpene profile drives it. Myrcene lays the ripe, earthy foundation, caryophyllene adds a spicy, peppery warmth, and humulene and camphene deepen the herbal, woody kush character. Citral and pinene lift the citrus on top, with farnesene, borneol and more filling in beneath.
The effect follows the 70% indica build: a euphoric, happy opening that settles into a deep, relaxed, physically heavy calm, classic OG-and-Cookies territory. At a potent 20-25% THC it is genuinely strong, so newer users should go slow, and the regular-seed format makes this one better suited to experienced growers than true first-timers.
Harvesting, Drying, and Curing
Check trichomes from week seven. Harvest when most are cloudy with 10-20% amber for the balanced euphoric-to-relaxed effect; more amber pushes it toward heavy indica sedation. The dense, frosty buds make a loupe the reliable judge rather than the naked eye.
Dry whole branches at 59-68°F and 50-55% humidity for 7-14 days in darkness with gentle airflow, waiting for stems that snap. Cure in glass for at least three weeks, burping daily early on; the earthy, citrus-kush profile deepens and smooths with a patient cure. Any seeds you made will finish drying in the buds and can be stored once fully dry.
What to Do With Your Trim
With this much OG and Cookies resin, the sugar leaves are worth keeping. Dry-sift them for an earthy, citrus-kush kief, run ice-water bags for hash, or press the sift into rosin to concentrate the bold terpene profile. On a high-yielding plant like this, the trim adds up quickly.

Frequently Asked Questions
Are GSC x OG Kush seeds feminized or regular?
GSC x OG Kush is sold as regular seeds, not feminized. That means they produce both male and female plants in roughly equal numbers, which is what makes the strain useful for breeding, making your own seeds, or selecting a keeper mother plant from the females.
How do I tell male from female GSC x OG Kush plants?
Watch the nodes from around the third week of veg. Male GSC x OG Kush plants form small round pollen sacs, while females show fine white pistils. Unless you are breeding, remove the males before they open and release pollen onto your flowering females.
What is the THC level of the GSC x OG Kush strain?
The official range is 20-25%, a high level for the GSC x OG Kush strain. The effect is genuinely potent, so newer users should start with a small amount. Combined with the regular-seed format, this makes it better suited to experienced growers.
How long does GSC x OG Kush take to flower?
GSC x OG Kush flowers in 8-10 weeks after the switch to 12/12 indoors, a standard window for an indica-dominant strain. Grown outdoors in a temperate climate, the GSC x OG Kush strain is ready to harvest in October. Check trichomes from week seven.
What does the GSC x OG Kush strain taste like?
GSC x OG Kush tastes of bright citrus, green herbal notes, and a deep, earthy kush base. Myrcene and caryophyllene drive the earthy, spicy core, while citral and pinene lift the citrus. The complex profile rounds out and smooths with a full cure.
Why grow regular seeds instead of feminized?
Regular seeds like GSC x OG Kush give you both sexes, which you need to breed, produce your own seeds, or preserve genetics long-term. Many experienced growers also find that regular plants make especially vigorous, stable mothers for taking clones.


