The event marked the launch of a map which highlights community garden and farm projects across Wales.
"There has been an explosion of interest over the last two years in creating green spaces in Wales, due to concerns over issues such as food miles, climate change and healthy eating," said Federation of City Farms and Community Gardens: Development Co-ordinator for Wales Katie Jones.
Paul Davies added: "It was great to see a friendly face with local Pembrokeshire produce in Cardiff Bay! The Mount Project is a wonderful scheme and I was delighted to help promote such a great project."
Russell Davies added: "The map of community farms and gardens in Wales lets us know how much community gardening is going on in Wales at the moment and it's exciting to be part of that movement.
"It also enables people to contact us and come along to see what we do and get involved."