10,000+ handmade glass pumpkins on display throughout the grounds of Palo Alto Art Center. One unforgettable weekend. The Great Glass Pumpkin Patch returns this September with 25+ glass artists, live glassblowing, and thousands of one-of-a-kind works to discover and buy! Meet the artists, explore the gorgeous outdoor display of thousands of glass pumpkins. Food trucks on site. Save the date and start planning your visit.