Marathon OG by Mavericks Genetics is a feminized, Indica-dominant cultivar rooted in OG Kush, the backbone of West Coast cannabis. It packs 29% ± 2% THC and a bold earthy, herbal, lemon and spice bouquet into compact, rock-hard buds made for weight and resin.
The flowers stay green, dense and heavily frosted, and the breeder lists a dry extract return of 100:12 kg, so Marathon OG appeals as much to extract makers as it does to flower connoisseurs. Total terpenes come in around 3.20%.
Mavericks Genetics rates its flowering time at seven to eight weeks, which makes this one of the quicker finishers among high-THC OG lines.
Marathon OG Genetics
OG Kush shaped a generation of California cultivars with its fuel-and-pine aroma, dense structure and powerful effect. Marathon OG carries that heritage forward in a stable feminized format with a 99% feminization rate reported by the breeder.
With a 70% Indica and 30% Sativa balance, the plant grows medium in height with stout branches and tight internodes. The Sativa share adds a little stretch in early bloom and keeps the headspace focused instead of foggy.
Aroma, Flavor and Effect
Classic OG character dominates: damp earth and forest herbs first, then a squeeze of lemon and a peppery, spicy kick on the finish. The smoke is dense and full, with lemon brightening the earthy base on every exhale.
The effect is powerful and long-lasting. It settles the body into a deep, grounded calm while the mind stays composed and focused rather than scattered. Given its THC level, Marathon OG is aimed at experienced consumers and should be approached in small amounts by anyone less seasoned.
It fits evenings at home, slow weekends and situations where a strong, steady effect is the goal.
Growing Marathon OG Indoors and Outdoors
Indoors, Marathon OG can produce around 450 g/m² (1.47 oz/ft²). Top once and use LST to open the canopy, as OG genetics stack heavy colas that benefit from even light. Support branches with trellis netting before week four of bloom, and keep humidity on the low side as the dense buds fill in.
Outdoors, a well-grown plant can yield about 550 g (19.4 oz) per plant. Warm, dry climates suit it well; in humid regions, careful pruning and wide spacing help keep the compact flowers clean as they ripen.
For extraction, harvest when trichomes are mostly cloudy, handle the colas gently and process fresh-frozen or carefully dried material to make the most of the 12% dry return.
Marathon OG Characteristics
| Strain type | Feminized |
| Genetics | OG Kush |
| Indica/Sativa | 70% Indica / 30% Sativa |
| THC | 29% ± 2% |
| Effect | Grounding, relaxing, mentally focused |
| Aroma/Flavor | Earthy, herbal, lemon, spicy |
| Indoor yield | 450 g/m² (1.47 oz/ft²) |
| Outdoor yield | 550 g/plant (19.4 oz/plant) |
| Flowering time | 7-8 weeks |
| Cola color | Green |
| Terpenes (total %) | 3.20% |
| Extraction yield | 100:12 kg dry (about 12%) |
| Feminization rate | 99% |
| Best cultivation technique | Topping and LST, trellis support, low humidity in late bloom |
FAQ
Is Marathon OG Indica or Sativa?
Marathon OG is Indica-dominant at 70% Indica and 30% Sativa, delivering a grounding body effect with a calm, focused mind.
What genetics are behind Marathon OG?
Mavericks Genetics bases Marathon OG on OG Kush, the classic West Coast line known for earthy, lemon and fuel-tinged aromas.
How much THC does Marathon OG have?
The breeder lists total THC at 29% ± 2%, so it is aimed at experienced consumers.
How long does Marathon OG take to flower?
Mavericks Genetics lists a flowering time of 7-8 weeks.
Is Marathon OG good for extraction?
Yes. The breeder lists a dry extract production of 100:12 kg, roughly a 12% return.
What yields can growers expect from Marathon OG?
About 450 g/m² (1.47 oz/ft²) indoors and around 550 g (19.4 oz) per plant outdoors.
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