It's easy being green at the Green Scene Plant and Garden Show, an annual event that features more than 80 vendors, a children's garden, a "Dirty Hands, White Gloves" mini-exhibit and an array of speakers, master gardeners and plant societies offering advice and information on composting, water conservation and organic gardening. Fullerton Arboretum, 1900 Associated Road, Fullerton. 10 a.m. to 4 p.m. Saturday and Sunday. Members' preview at 9 a.m. Saturday. $6; free for arboretum members. (657) 278-4798. http://www.fullertonarboretum.org.