Vermicomposting, composting using worms, is the focus of a workshop 10 a.m.-noon Saturday, May 12, at the Horticulture Unit (northeast corner of Chestnut and Barstow avenues). Participants will learn how to construct a simple worm composting box and be provided with the materials for $25. Space for this public event is limited. INFO/RSVP: Dr. Sajeemas ‘Mint’ Pasakdee at 559.278.2828 or spasakdee@csufresno.edu.