The contract spans a 26-mile radius, from the East India Dock Basin on the River Thames to Ware town centre, Hertfordshire. A number of sites are of special scientific interest (SSSI).
A team of 12 Glendale staff, including two apprentices, will carry out grass and hedge cutting, rose and border maintenance, weed spraying, leaf clearance, litter collection and meadow cuts.
The Lee Valley Regional Park Authority runs award winning open spaces and sports venues along the 10,000 acre park, attracting more than seven million visits a year.
The park was created as a ‘green lung’ for London, Essex and Hertfordshire in 1966 by an Act of Parliament.
Adrian Wickham, managing director south at Glendale, said: “It’s been a pleasure to work with the Lee Valley Regional Park Authority for the past five years and we’re delighted to continue our partnership.
“The transformation of the area throughout the past five decades has been fantastic, and we’re pleased to be playing a key role in maintaining the beautiful open spaces and nature reserves within the park.
“We’ve been proud to see our work in the area be recognised with seven Green Flag Awards, which we have maintained for the past five years, in addition to seven gold awards in the prestigious London in Bloom competition.