Green Monster Automatic is a modern automatic variety resulting from the cross of Big Devil #2 Auto and Ruderalis. Due to its status as a contemporary hybrid, specific details regarding its origin remain thin, and there is no documented background regarding the original breeder or the intent behind its development. The strain is cultivated for its ease of growth in both indoor and outdoor environments, maturing consistently within a 60-day flowering period, though it produces a low yield.

In terms of sensory characteristics, the strain features a complex chemical profile. Its terpene arrangement likely follows a progression starting with myrcene, caryophyllene, and limonene, followed by pinene, terpinolene, and linalool, with minor contributions from beta-pinene, humulene, nerolidol, ocimene, bisabolol, guaiol, camphene, caryophyllene-oxide, and p-cymene. This aromatic composition tends to influence the variety's specific sensory experience, though its exact olfactory expression can vary based on individual cultivation conditions.

As a THC-dominant strain, Green Monster Automatic is primarily sought by users for its ability to induce feelings of being relaxed, happy, and uplifted. These effects make the strain a functional option for those managing stress, pain, or difficulties with sleep. While the plant remains a stable addition to modern automatic genetics, it has no recorded offspring, marking its place in the current cannabis landscape solely for its individual performance and specific therapeutic utility.