Thursday, July 17, 2025 at 8:30 p.m. on KPBS TV / Stream now with the PBS app + encore Monday, July 21 at 8:30 p.m. on KPBS 2. In this first of a two-part series, we take viewers on a tour of the San Diego Botanic Garden, starting with the gorgeous collection of tropical plants in the stunning new conservatory.