Sweet Tamarind Fair is thus organized in Phetchabun to celebrate the harvest of this fruit during January 17-25. This day is also called "Phetchabun’s Agriculture Day." During the festival, farmers bring their sweet tamarinds to sell at a reasonable price at Phetchabun’s provincial athletic field where contests of sweet tamarinds and other crops are held. Besides this, there are other agricultural exhibitions and entertainments organized during the event.