Tree of knowledge

One of the more unusual exhibits is the RHS Tree Of Knowledge which is in the Continuous Learning section in the Grand Pavilion.

The 5-metre tall tree was designed by Tom Hare and is woven in willow. It was created to mark the 2010 United Nations' International Year of Biodiversity.

With the countryside and open spaces in urban areas under increasing pressure from planners and developers, a wider understanding of the importance of maintaining biodiversity will help reduce the impact of decreasing green space in gardens. An interactive RHS display allows visitors to learn more about biodiversity.

Among the other exhibits in this section:

The Capel Manor stand demonstrates how greening urban areas can reduce crime rates.

The Centrepoint garden introduces the production of 'Superfoods' - plants that can be grown in an urban environment with medical, healing and very high nutritional value.

Indoor Garden Design has created a 'Living Office', which demonstrates the importance of indoor plants in an office environment.

The UK Climate Impacts Programme exhibit shows how plants can be used to help create a better environment within our changing climate.