David Sumerlin has worked for Fungi Perfecti since 1984. He has been making mushroom extracts for the last 20 years and has been involved of all aspects of mushroom cultivation. David teaches many different mushroom workshops which include basic outdoor mushroom cultivation, mushroom tissue propagation as well as various mushroom arts including paper making and mushroom dyes. He has been teaching Hollyhock workshops since 2004 and has an extensive knowledge of locations and species on Cortes Island.