The event is part of a three year project to get more local produce into the Capital and follows the Celebration of Local Food event held in February this year.
Director Henriette Reinders, of organizers South East Food Group Partnership, said the event will focus on the benefits of seasonal produce.
"Why put apples, for example, on a menu through the early summer, when you have easy access to the best soft fruits in this country. That's why we are keen to demonstrate more than lip service at the event with a range of seasonal chef demonstrations to see how easily recipes can be adapted to the seasons."
Companies at New Covent Market are already championing the local season produce message including distributors DDP - which is working with English herb producer and wholesaler R & G Stevens.
DDP managing director Sham Grimshaw said: "R & G and DDP have been trading for over 20 years. In this time both companies have moved with the trends in the catering industry along with the boom in the demand for fresh herbs."
Managing partner at R and G Stevens Matthew Prestwich will be running a culinary herb masterclass at the Local to London event.
Other event organizers include Covent Garden Market Authority (CGMA), Taste of Anglia and London Development Agency.