Here are upcoming gardening events through the Ohio State University Extension Office. For more information and a complete list, contact:• OSU Mahoning County Extension Office, 490 S. Broad St., Canfield. • OSU Trumbull County Extension Office, 520 W. Main St. Suite 1, Cortland. Plant and Pest ClinicYou can submit your questions by calling the Mahoning County office at 330-533-5538 or emailing us at mahoningclinic@osu.edu. Vermiculture 101WHAT: Join OSU Extension Mahoning County and The Mahoning County Green Team to learn the basics of vermicomposting.