The garden is designed to highlight the work undertaken by the charity, while each flower represents an individual Marie Curie nurse (see video below).
Marie Curie CEO Jane Collins said: "A lot of our nurses actually work at night and that is why this display has been created in the way it has... and we like to think that we bring a little bit of light in the darkest hours to provide support to the people who need it."
Hope&Glory was appointed in October 2016 to handle the PR launch and engagement campaign for Marie Curie's Great Daffodil Appeal. The Garden of Light is the first in a series of activities.
Agency director Sebastian Dilleyston, who is leading the account, said: "The Garden of Light is a fantastic platform for the organisation to communicate their cause and to show the remarkable work their nurses' do - alongside the huge range of vital services they offer to those living with a terminal illness and their families."
The garden, which was installed in London's Paternoster Square earlier this month, has already generated over 100 pieces of media coverage and has been mentioned more than 1,500 times on social media, Hope&Glory said.
The Scotland Garden of Light will feature at St Andrew Square Garden, Edinburgh from 16-18 March, while the Northern Ireland Garden of Light will be installed at St Anne’s Square, Belfast, between 23 and 26 March.