Joseph Tychonievich spent a year traveling all over the US and UK visiting gardens for his new book  Rock Gardening: Reimagining a Classic Style. In this Tower Hill Botanic Garden talk on Saturday, March 25 at 11 am, he shares images and ideas from some of his favorite, most unusual, and most exciting gardens to inspire the audience to take their gardens in new directions. A book signing will follow. THBG members $15, nonmembers $25. Register online at www.towerhillbg.org.