Tracy DiSabato-Aust has taught thousands of readers how to design and maintain their gardens. Her first book, The Well-Tended Perennial Garden, is widely considered the bible for perennial maintenance. Now with 50 Favorite Plants for High-Impact Gardens, Tracy presents 50 show stopping plants that are easy to grow. Each has passed Tracy’s test for toughness, beauty, and durability, chosen after years of studying how to make beautiful outdoor spaces with a minimum of maintenance. Tracy’s books will be available for purchase and signing. $15.Â Newton South High School, 140 Brandeis Road, Newton, MA.