Learn how to turn organic yard and kitchen waste into a rich garden amendment. Participants will build a worm bin to take home. Registration is open now. $20 per-family fee covers cost of bin. Pre-payment by check is required.
10 a.m. to noon April 24, Columbia Springs, 12602 S.E. Evergreen Highway, Vancouver.
10 a.m. to noon June 5, CASEE, 11104 N.E. 149th, Brush Prairie.