Ask Ed: Marijuana Gold: Trash to Stash Product Description Often, parts of the marijuana plant such as leaf or trim are discarded because they are lower in THC content and unappetizing to smoke. The second title in the Ask Ed series, Marijuana Gold: Trash to Stash shows how to rescue these unused parts of the plant by processing them to increase concentration, or by using alternate methods of consumption to rescue them from inadvertent waste. With photographs, illustrations and his usual expertise, Ed Rosenthal tells you how to get the most mileage from a personal stash. Ask Ed: Marijuana Gold: Trash to Stash