Get free plant material by volunteering at Plantasia; sign up now The Western New York State Nursery & Landscape Association (WNYSNLA) is seeking not-for-profit organizations to participate in a green exchange program. Plant material, such as annuals, trees, shrubs and mulch that is left over from Plantasia will be given to not-for-profit organizations in exchange for a donation of volunteer time at Plantasia, its annual landscape and garden show, which takes place March 21-24 at the Fairgrounds Event Center and…