SoCal cannabis breeders Ocean Grown Seeds originally designed the Merlot OG in 2006 as an attempt to create an OG Kushtype plant with deep purple colors by crossing Larry OG and Grape Ape The resulting plant was then crossed with Blackberry Rhino x SFV OG and then backcrossed to stabilize its OG characteristics Merlot OG produces large dense indicatype buds that are blanketed in white trichomes and will often turn dark purple especially in cooler conditions