Lowell Dietz will demonstrate how to cultivate edible mushrooms at 10 a.m. Saturday, Sept. 13, at the Clallam County Master Gardener Demonstration Garden, 2711 Woodcock Road, Sequim. Gardeners will learn how to make mushroom growing kits using pasteurized straw and grain spawn.

Dietz also will discuss making organic fertilizer, which he calls “Sequim Terra Preta,” using charcoal, a byproduct of straw cooking, and red wiggler worm castings. He will have a red worm bin tower there to show how well the worms turn the spent mushroom straw into castings.

Dietz has been foraging for wild mushrooms for over 25 years and cultivating half that time. He is a member of the North American Mycological Association, Kitsap Peninsula Mycological Society and Olympic Peninsula Mycological Society. He served six terms as president of the local societies and is serving as treasurer of OPMS.

Dietz recently was featured in a three-page article in the summer issue of Living on the Peninsula magazine, published by the Sequim Gazette. Copies are available free of charge at the front desk.

This presentation is a part of the Class Act at Woodcock Garden series, held on select Saturdays from May-September at the Woodcock Demonstration Garden.

For more information, call 417-2279.