Four celebrated landscape designers will participate in this year’s Landscape Pleasures, the Parrish Art Museum’s annual two-day horticulture event and fund-raiser. The program will kick off from 9 am to 1 pm Saturday with a symposium featuring talks by Eric Groft, Paula Hayes, Doug Reed, and Edwina von Gal. On Sunday, from 10 am to 3 pm, five spectacular private gardens, several of which were designed by the guest speakers, and Bridge Gardens, a project of the Peconic Land Trust, will be open to ticket-holders for self-guided tours. $150 Parrish Members|$200 Nonmembers