American Horticultural Society, Thursday.Preview of Southern California Spring Garden Show featuring guest of honor, Gayle Wilson. 6:30 p.m. at Crystal Court, Costa Mesa. $35 and up. (714) 435-2167.
Fran Joswick Therapeutic Riding Center, Saturday.A Night in Old Havana dinner benefiting the center, which offers horseback riding therapy to disabled children and adults. 6:30 p.m. at the Balboa Bay Club, Newport Beach. $150 per person. (714) 240-8441.
Jewish National Fund, Sunday.Theodor Herzl Centennial Exhibit and one-man play featuring Ed Asner, benefiting the Negev Desert development project. 5 p.m. at the University Club at UC Irvine. $125 per person. (714) 558-8733.
Concordia University, Sunday. "An Afternoon to Remember" concert and champagne buffet benefiting the university's music department. 4 p.m. at Durenberger and Friends antique store, San Juan Capistrano. $25. (714) 854-8002, Ext. 863.
Newport Beach Public Library Literacy Program, Sunday. "Reading Between the Lines" featuring readings by noted actors and a champagne tea. 2 p.m. at the Newport Theater Arts Center, Newport Beach. $50. (714) 717-3874.
Hoag Cancer Center, April 15. Circle 1000 Founders' Brunch benefiting the center, which educates the public on prostate cancer. 9 a.m. at the Four Seasons Hotel, Newport Beach. $100 per person. (714) 574-7217.
Children's Hospital of Orange County Foundation, April 16. Tea reception benefiting the foundation. 6 p.m. at the McCharles House Tea Room, Tustin. $20. (714) 731-4063.
Philharmonic Society of Orange County, April 18. Philharmonic House of Design premiere night gala benefiting the Philharmonic Society. 6 p.m. at the house, San Juan Capistrano. $100 per person. Black tie optional. (714) 553-2422.
The Guilds of the Orange County Performing Arts Center, Cabaret Chapter, April 19. "Diamonds & Dice" dinner-auction
benefiting the center. 6 p.m. at Mesa Verde Country Club, Costa Mesa. $85. (714) 666-8143.
Canyon Acres Children's Services, April 19. Dinner-auction to help abused and emotionally troubled children. 6 p.m. at the Village Crean, Newport Beach. $75. (714) 998-3272.
Council of African American Parents, April 19. "Strutting Aboard the Delta Queen" dinner-dance benefiting the nonprofit organization that provides ways to enhance students' personal and educational growth. 6 p.m. at the Anaheim Marriott hotel. $50. Black tie optional. (909) 595-3005.
American Home Health Hospice, April 20. Benefit fashion show for the organization, which offers free health care services and educational services to the community. 4:30 p.m. at the Garden Grove Community Center. $40. (714) 550-0800.