RHS London Spring Plant Extravaganza is a 2 day event being held from 1st April to the 2nd April 2016 at the RHS Lindley Halls in London, United Kingdom. This event showcases products like large displays from professional growers, orchid societies and botanical gardens from around the world. You will be able to enjoy a spectacular array of exotic orchids, learn about their extraordinary history, wonder at their unique beauty and buy some highly collectible and new species.RHS Lindley Halls etc. in the Horticulture & Floriculture industry.