Gorilla Glue #4, when kept in its ideal sunny and dry settings, can produce a generous harvest of about 21 ounces yielded per plant. It is usually ready for harvest around the middle of October. Gorilla Glue #4 yields quite generously, which makes it a win-win strain to grow, because it is also known for its absolute ease. You guys have never steered me wrong in advice on my first solo grow, and being a contributing member of the DGC has paid itself back over and over again, so thank you dudes! If you recall, I'm growing 2 big ass Gorilla Glue #4 and one Obama Kush outdoors in Portland, Oregon, with a DIY light-dep schedule, that's totally working by the way! PRODUCT FEATURES. 100% WATERPROOF: Doesn't break down when exposed to outdoor elements. VERSATILE: Easily bonds wood, stone, metal, ceramic, foam, glass, concrete and much more! INCREDIBLY STRONG: Expands 3 times into the materials to form an incredibly strong bond. TEMPERATURE RESISTANT: Bond holds through hot and cold temperatures.