"OG#18 from DNA Genetics is a house favorite of SinCity Seeds, oh so dank. SinCity Seeds has improved it in a way that it was too lanky, finicky and low yielding unless ran in high numbers. So they wanted to let their WhiteNightMare male go to work and boost its yield and structure. Doing just that, and more they have created NightMare OG. So dank it will scare you! Expect alot of Pheno varieties with this strain. THC: 28-30% Flowering Type: Photoperiod Sex: Regular Yield: High Flowering Time: 9-10 weeks Do you find mistakes or wrong information? Or is there something you want to add? Strain Reviews Degustation Gallery Direct Comparisons Lineage / Genealogy Hybrids / Crossbreeds User comments Uploads"