This joint tour sponsored by the San Diego Horticultural Society and the San Diego Floral Association commemorates the centennial of the 1915 Panama-California Exposition. There will be stops at 12 gardens in historic neighborhoods near Balboa Park. Homes and gardens by Richard Requa, Kate Sessions, Milton Sessions, W.F. Sinjen and other legendary architects and designers showcase romantic Mission style and timeless outdoor living. Tickets are $30 ($25 for SDHS and SDFA members if purchased in advance). Starts at the Marketplace at the Francis W. Parker School Mission Hills campus.