Clark Conservation District is offering a Cover Crop Workshop from 2 to 4 p.m. Oct. 14 at the Marshall Community Garden, 1009 E. McLoughlin Blvd., Vancouver. Attendees will learn how to establish winter cover crops in their home gardens and how they can boost soil health. No registration is required to attend. Contact ag@clarkcd.org or call 360-859-4780 for more information.