FAQs Advanced Search Advanced Search Close Panel All of these words This exact phrase Any of these words Without these words Search within: NParksWhole of Government Expand All Collapse All Industry DevelopmentGreen Thumbs 1. What is Green Thumbs? An annual event, Green Thumbs aims to recognise the contributions of the Landscape Industry in developing Singapore as a Garden City and boost the image and professionalism of the industry. This includes skills contests, exhibitions, and activities for the public, to encourage more locals to join the industry. It is jointly organised by NParks, National Trades Union Congress (NTUC), Singapore Landscape Industry Committee (SLIC), and Singapore Workforce Development Agency (WDA).