Marshmallow OG by Compound Genetics is a photoperiod cultivar created from Chemdog D x Triangle Kush x Jet Fuel Gelato (JFG).It is sold as feminized seed with reported THC content around 28%. In this cross, Chemdog D x Triangle Kush is described as contributing high potency and intense aroma, while Jet Fuel Gelato tightens the previously less organized bud structure into a strong plant that performs well across indoor, greenhouse and outdoor grow styles and shows good resilience in a wide range of environments.Marshmallow OG typically matures in about 9 weeks, with an indoor flowering time of 65–70 days (approximately 9–10 weeks) and indoor yields in the range of 500–550 g/m² from compact plants that generally stay under about 120 cm in height.The cultivar was named for breeder-selected phenotypes that smell like a freshly opened bag of marshmallows, and its flavor and aroma profile is further described as candy-like and gassy, with some sources evoking an aroma of hot marshmallows and the chilled atmosphere of a campfire on a mild summer night. Effects are energizing and uplifting.Marshmallow OG forms part of Compound Genetics’ Jet Fuel Gelato-based line and was among the first three Compound Genetics cultivars introduced to the European market, illustrating the breeder’s “Flavours by Design” approach built on a curated, exclusive genetics library.