Hamilton and Halton conservation authorities, with Cootes to Escarpment EcoPark System, are hosting workshops, led by staff experts, to help participants create low-cost, environmental gardening plans. Workshops run Wednesdays, Feb. 21, Feb. 28 and March 7 from 6:30 to 8 p.m. at Melrose United Church, 86 Homewood Ave., Hamilton. Registration is now open.