HortPark is the first integrated gardening lifestyle hub in Asia. Built at a cost of $13.1m, the landscaped garden was officially opened by Prime Minister Lee Hsien Loong on 10 May 2008 as a one-stop gardening resource centre. The garden features 20 thematic gardens including a Herbs and Spices Garden with medicinal and culinary herbs, and a Silver Garden featuring silvery, grey and white plants.

In 2009, locally-extinct butterflies were re-introduced at the Butterfly Garden through a butterfly species recovery programme.