Special to the Advance PHARR — Local Texas Master Naturalist experts will be featured speakers during the 32nd Annual Rio Grande Valley Home and Garden Show at the McAllen Convention Center March 31 through April 2.South Texas Border Chapter Texas Master Naturalist members will present informative talks about environmental lighting and the beneficial use of native plants in home landscapes.The scheduled talks during the three-day event are as follows:Friday, March 31• 2:45 p.m., Friendly Outdoor Lighting, presented by Thomas Butler. Outdoor lighting can save money and be environmentally friendly. Designs that are attractive and effective while minimizing negative effects on ...