The 800-square-metre plot, leased from the ACT government, has been designed as an education hub for tips about cultivating food within the confines of city living.

Canberra City Farm president Jodie Pipkorn said she was thrilled to launch the gardens at a public open day on Sunday, November 16.

"It has come about after three years of work by dedicated volunteers in our local community and it's wonderful to see it finally come to life," she said.

Since its inception in 2011, the farm has held many demonstration stalls and workshops to inform, inspire and connect with the community about urban agriculture.

Volunteer member Deborah Reynolds said the site would be different to a typical community garden with defined plots.

Instead it would provide for practical learning about growing with limited space and budget.

"We want to show you can grow on a balcony, in whatever sized space you have," she said.

"From the very basic to the complex techniques people can take away their ideas and implement them in their own patch."

Two donated shipping containers will be used for storage and to host learning about growing herbs, vegetables and flowers as well as topics such as soils, composting and more.

Volunteers hope the community contributes suggestions for future workshops and reap the benefits of what is sowed.

"We plan to install an earth oven for pizza nights," Ms Reynolds said.

A portion of the gardens will be locked up after hours, but the majority is designed to be open for the public to enjoy.

"The gardens outside the fence perimeter will be open to walk through," Ms Reynolds said.

"If people have need and want to pick vegies they're welcome, and we would hope they then come and learn more about growing with us."

The open day runs from 11am to 3pm.