A Rebutia Muscula cactus on display on the 'Southfield Nursery' stand at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors walk along the main avenue of the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Cacti are displayed on the 'Southfield Nursery' stand at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Cacti are displayed on the 'Southfield Nursery' stand at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

A visitor walk past a stone garden sculpture for sale at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire the B&Q Sentebale Forget-Me-Not Garden, inspired by Prince Harry, at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire the B&Q Sentebale Forget-Me-Not Garden, inspired by Prince Harry, at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Strawberries are grown in a pair of old boots on the Ken Muir stand in The Great Pavilion at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire the flora on the Hardy Plant Society stand in The Great Pavilion at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Pitcher plants are displayed on the Hewitt-Cooper Carnivorous Plants stand in The Great Pavilion at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire the plants on display in The Great Pavilion at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire lilium on display in The Great Pavilion at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire The M&G Centenary Garden at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

A screen depicting a garden scene is erected next to a temporary marquee at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire the show gardens at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors relax next to a champagne bar at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire the plants on display in The Great Pavilion at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Statues on display on the Nong Nooch Tropical Botanical Garden in The Great Pavilion at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire the gardens along Serpentine Walk of the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Cycle rickshaws wait to pick up fares from visitors leaving the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Cycle rickshaws wait to pick up fares from visitors leaving the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire a statue of a cockerel for sale at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Visitors admire the azaleas on display in The Great Pavilion at the RHS Chelsea Flower Show on May 21, 2013 in London, England. Photo by Oli Scarff/Getty Images

Garden designer, Phillip Johnson, at Trailfinders Australian Garden presented by Fleming's. Photo: Helen Maybanks

Wes Fleming [left] and Phillip Johnson led the first ever Australian team to win the coveted best in show medal at the Chelsea Flower Show.