Mayor Sadiq Khan was joined by faith leaders and key workers as he unveiled a “commemorative living space” of 33 blossom trees, one for each borough.
The “London blossom garden” is located in the north of the park, near the Tumbling Bay children’s playground. Mr Khan also announced a new bereavement support programme.
“This new public garden is a lasting living memorial in recognition of the impact that covid has had, and continues to have, on our city,” Mr Khan said.
It came as he warned that Londoners “cannot be complacent” about the dangers of covid amid the “concerning” increase in cases of the Indian strain, with surge testing underway in five west London boroughs.
Khan added: “We cannot be complacent with the virus or with new variants. There are a small but growing number of cases of the B.1.617.2 variant that originated in India.
“Vigilance is important… and it is imperative to our health, community and economy that we take a test when asked. Another vital step is the vaccination rollout – when it is your turn please get a vaccine.”