All contracts for the supply of plants are let in accordance with the Olympic Delivery Authority’s (ODA) Sustainability Strategy which, among other things, sets standards for minimising energy, waste and water use, and includes transport miles.
As many of the trees, shrubs, herbaceous plants and seeds as possible are specified in contract documents to be of British origin for ecological reasons. This is in order to meet the Olympic Biodiversity Action Plan targets for Games and Transformation as well as reducing transport and energy input. Peat-free composts are also specified in all the ODA’s contracts for plant supply.
The ODA is also installing an irrigation system to ensure the establishment of all planting. It will use a non-potable water supply, designed to reduce water demand.
Advanced plant procurement has secured approximately 2,000 semi mature trees from a UK nursery. The contract has also been let for the advanced procurement of approximately 240,000 wetland plants from a UK supplier. Current work is ongoing to secure advanced growing of herbaceous plants for 2012 Gardens. Clauses included in the plant procurement contracts require certain environmental standards to be met for nursery stock production and supply of stock.