Warwick Square was laid out in the early 1840s as part of Thomas Cubitt's development plan for Pimlico. The westward vista from the garden towards St Gabriel's Church was a component of Cubitt's original design.
The square won Gold in the London in Bloom Competition 2015, 2016 and 2017, the judges commenting:
‘This grade II-listed site...exemplifies everything our historic garden squares should be; a far cry from the sterile spaces surrounded by stock shrubs. This is a gardeners' delight - a structured hotchpotch from the everyday to the unusual and exotic... The gardeners have used planting wisely to create vistas down the length of the perimeter path whilst personalising the central area dividing it into gardens within a garden.'
The garden features a rose garden, formal bedding and a relaxing lawn area. Mixed planting of shrubs, herbaceous and annuals gives year-round colour and fragrance.
The square was also awarded Silver Gilt in The London Squares Garden Competition 2017.
Six of the original iron lamp standards remain in use. New railings to match those donated to the war effort during WW2 have been installed and the original hoggin paths and rope-edge tiles reinstated.
The two original Victorian mounds have been re-landscaped with timber forts, concealed paths and hiding places to encourage children's play.
The square has been extensively replanted in recent years, designed to be an all-season garden, with particular emphasis on winter interest and scent. It is home to a large variety of birds, insects and butterflies.
'Rus in Urbe' is written above the gates and, indeed, this is a piece of romantic countryside in SW1.