The National Orchid Garden is located on the highest hill in the Singapore Botanic Gardens. Three hectares of carefully landscaped slopes provide a setting for over 1,000 species and 2,000 hybrids, with about 600 species and hybrids on display.The distinctive feature of the National Orchid Garden not to be missed is its design concept which presents the display of plants in four separate colour zones over most of its areas:This colour zoning is achieved by a careful blend of selected trees, shrubs, herbs and orchids (mostly hybrids) with matching foliage and floral colours.