Known for being one of the strongest of the OG strains Fire OG has a strong scent similar to Lemon Pledge and an effect that can last up to 3 hours With parents of OG Kush and San Fernando Valley OG Kush F3 theTHC can be up to 20 with a CBD of 036 The plant has frost covered nuggets with red hairs giving the appearance that it is on firewhere the name Fire OG comes from Flowering time is generally 910 weeks