The park, designed by Churchman Landscape Architects, is the first of a series which are being created on the Thames path.
Riverside Gardens, next to Vauxhall Tower, features bespoke Corten steel chairs and benches, designed by Tord Boontje, which include planted backs filled with strawberries and herbs as well as perennial and bulb planting.
Churchman has been working on the public realm for the Thameside path since 2014. It has designed a second park with wave-form benches and turfed areas, due to be built later this year.
Architect Studio Wave has designed another park which will be opposite the new American Embassy. It will feature a raised garden and a pavilion and is also due on-site this year.