Key steps in China shiitake Spawn Production Growing shiitake mushrooms from spawns are not difficult if you have the suitable arrangements and expert guidelines. You must sincerely follow a set of instructions consulting with professionals to cultivate the mushrooms. The blog here provides the readers with some valuable information in this regard. Read on. Cultivating from natural logs You need to arrange oak logs and cut them into suitable lengths. It is convenient to get the China Shiitake spawn from a top service provider such as Agrinoon to ensure high quality. The spawn is often in a wooden plug or bran.