Visitors to Jubilee Gardens this week will have seen a harris hawk watching over the lawns and flowerbeds of the South Bank park.
Work currently being undertaken includes the laying of new turf and planting of new grass seed.
The Jubilee Gardens Trust says that an extensive overseeding programme will ensure that lawns are well established before the hot weather arrives, creating the conditions for a lush, green landscape to last through the summer.
Officially inaugurated by the Queen last October, the gardens are also being planted with new varieties such as bear's breeches, bluestars, gladioli, daylilies, iris, paeonias and alliums.
More evergreen shrubs have also been introduced to ensure year-round green cover, creating a solid spine of colour.
These will be grouped and condensed in small clusters to prevent visitors from walking across the beds, a problem which the trust says has caused significant damage to the gardens during the winter months.
Returfing, overseeding and the planting of new species began in late April and is expected to be completed by the second week of May.