Green House Seed Co.

The Green House Seed Company stands as one of the most prestigious cannabis breeders in the world. Under the leadership of founder Arjan—dubbed the “King of Cannabis”—the brand has earned over 40 High Times Cannabis Cups, 17 Highlife Cup titles, and many other international accolades for its innovative strains. GHSC’s mission blends passion and responsibility: they produce non-GMO, untreated seeds with robust medicinal benefits, vivid flavors, and standout terpene profiles. With a catalog of 20+ elite genetics, their offerings excel across all grow environments—whether indoor, greenhouse, or full outdoor setups. Beyond breeding excellence, GHSC champions a global movement toward cannabis normalization and legalization. Overgrow proudly brings South African growers access to these legendary strains, supporting both skilled and novice cultivators in growing with confidence and purpose.