In just 100 days the first stage of the Queen Elizabeth Olympic Park will open to visitors - including 102ha of open space.
The 23ha North Park occupies the same place as the Olympic Park’s wildflower park and has been designed to be a wildlife haven.
It will feature otter holts, frog ponds and bat and bird boxes as well as around 3,300 trees, 116,000 shrubs, 720,000 herbaceous plants, 200,000m² species rich meadow and 36,000m² of new turf.
Around 800,000 bulbs will also be planted.
Tier 1 contractor for the whole site is Bam Nuttall with Frosts operating as Tier 2 contractors, responsible for most of the landscape and public realm aspects. Sheffield University’s Wildlife Meadow Consultants will also be adding its expertise.
London Mayor Boris Johnson said: "The long term future of Queen Elizabeth Olympic Park is bright, dispelling the fears of white elephants and tumbleweed.
"We are on track to deliver a lasting legacy for Londoners."
North Park is part of a £292m construction programme to transform the area from an arena of sporting excellence to a long-term mixed-use for the local community and visitors, will be the first part of the site to open again to the public. The rest will open in phases until spring next year.
The works, undertaken by The London Legacy Development Corporation, are among the largest in Europe, and include an arena, a café with community space, a school and 2,818 homes and are planned to take 10 years.
A number of large scale events are planned at the park this summer including Sainsbury's London Anniversary Games in July, on the anniversary of the London 2012 Opening Ceremony, music festivals Hard Rock Calling, The Summer Stampede and Yahoo! Wireless Festival and specialist children’s festival Lollibop.