The Yard Of Food Project

Not directly an edible...

Camellia is normally considered an ornamental plant. Camellia S. is grown for tea use, as it's leaves can be used to make green to black teas (depending on how the leaves are processed). Camellia J. is typically left as an ornamental, but can be substituted for Camellia S. (although not grown for its flavor).

Another use it for its flowers, as bees love them.