WGF said: "As concern for the fate of our wildlife grows, and as people realise that they can take simple and meaningful steps in their gardens to help, so wildlife-friendly gardening has increasingly become popular in Britain.
"At the same time, wildlife gardening has been developing independently in many other European countries. So what can we learn from their experiences?"
Experts from Germany, Belgium, Holland and The Republic of Ireland will share their experiences so that delegates can compare methods and results and find new ways to get the best for nature from our gardens.
Andy Salisbury of the RHS and chair of the WLGF said: "It will be fascinating to hear how other nations have gone about making their gardens richer places for wildlife. We are sure there will be lessons that can be learnt and new relationships to be forged to help gardeners everywhere."